Assignment Evaluation sheet Student Name: ______________________________ Date: _____________________________________ Revision Exam 5 Quiz/Exam No.: _____________________________ 84 Percentage:_____% Grade:_____ Mark:_____/_____ Performance: □ Excellent □ Very good □ Average □ Needs improvement PROGRESS: □ Improving □ Same □ Worse than last Duration 1 hour 30 mins Use of data in graph / table questions: (If found) Skill Good Average Needs improvement Extracting data from graph/table Comparative data figures Data manipulation (calculations) Hint to improve performance: □ Understand what the question wants □ Study topic: ____________________ □ Use better sequencing of points □ Use more keywords □ Take a look at marking scheme □ Make sure your words are accurate Other Notes: _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ Dr. Nihal Gabr NGBiologyTeam www.dynamicpapers.com 2 1 (a) Fig. 1.1 is a diagram of the human gas exchange system. B A C Fig. 1.1 (i) Identify the structures labelled A, B and C in Fig. 1.1. A ........................................................................................................................................ B ........................................................................................................................................ C ........................................................................................................................................ [3] (ii) Explain how the structures in the gas exchange system cause inspiration. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [4] © UCLES 2020 0610/42/F/M/20 www.dynamicpapers.com 3 (b) A person who does not smoke can be exposed to tobacco smoke from other people smoking. Researchers studied the effect of exposure to tobacco smoke on the development of lung cancer in three groups of women who did not smoke: • • • group 1 – no exposure to tobacco smoke group 2 – low level exposure to tobacco smoke group 3 – high level exposure to tobacco smoke. Their results are shown in Table 1.1. Table 1.1 (i) group number of women studied number of women who died from lung cancer percentage of women who died from lung cancer 1 21 895 32 0.15 2 44 184 86 3 25 461 56 0.22 Calculate the percentage of women in group 2 who died from lung cancer. Write your answer, to two significant figures, in Table 1.1. [2] (ii) Many countries have laws that ban smoking in public buildings. Discuss the evidence from Table 1.1 that supports these laws. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [3] © UCLES 2020 0610/42/F/M/20 [Turn over www.dynamicpapers.com 7 3 (a) One of the characteristics of living organisms is sensitivity. Define the term sensitivity. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ............................................................................................................................................. [2] (b) State the names of two sense organs. 1 ................................................................................................................................................ 2 ................................................................................................................................................ [1] © UCLES 2020 0610/42/F/M/20 [Turn over www.dynamicpapers.com 8 (c) Scientists investigated the effect of adrenaline on blood glucose concentration in rats. The rats were put into two groups: • • group A was given an injection of adrenaline group B was given an injection that did not contain adrenaline. The blood glucose concentrations of the rats in both groups were monitored for three hours after the injections. The rats did not eat for 12 hours before the investigation or while they were being monitored. The results are shown in Fig. 3.1. 5.0 time of injection 4.5 blood glucose concentration / mmol per dm3 4.0 3.5 0.0 0.5 1.0 1.5 2.0 monitoring time / hours Key: group A (adrenaline) group B (no adrenaline) Fig. 3.1 © UCLES 2020 0610/42/F/M/20 2.5 3.0 3.5 www.dynamicpapers.com 9 (i) Suggest why group B was given an injection that did not contain adrenaline. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [2] (ii) Describe and explain the results shown in Fig. 3.1 for group A. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [5] (d) Another group of rats was given an injection that did not contain adrenaline. These rats were given food after 2 hours of monitoring. Predict the changes to blood glucose concentration in this group of rats. Sketch a line to show your prediction on the graph in Fig. 3.1. [2] (e) Describe two effects of adrenaline on the body, other than a change in blood glucose concentration. 1 ................................................................................................................................................ 2 ................................................................................................................................................ [2] [Total: 14] © UCLES 2020 0610/42/F/M/20 [Turn over www.dynamicpapers.com 13 (b) Meiosis is another type of nuclear division. Describe how the nuclei in cells produced by meiosis differ from the nuclei in cells produced by mitosis. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ............................................................................................................................................. [3] (c) Stem cells divide by mitosis during the growth of an embryo. Describe the role of stem cells in the growth of an embryo. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ............................................................................................................................................. [2] © UCLES 2020 0610/42/F/M/20 [Turn over www.dynamicpapers.com 15 6 (a) Atlantic cod, Gadhus morhua, is a type of fish that is an important resource for commercial fishing. Fig. 6.1 shows the estimated mass of Atlantic cod over 40 years. 9 8 7 6 mass of Atlantic cod / million tonnes 5 4 3 2 1 0 1970 1975 1980 1985 1990 year 1995 2000 2005 2010 Fig. 6.1 (i) In 1970, the mass of Atlantic cod was 8 000 000 tonnes. State one year when the mass of Atlantic cod was half this value. ..................................................................................................................................... [1] (ii) State the years when there was a continuous increase in the mass of Atlantic cod for at least five years. ..................................................................................................................................... [1] (iii) Suggest reasons for the trend shown between 1990 and 1995. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [3] © UCLES 2020 0610/42/F/M/20 [Turn over www.dynamicpapers.com 16 (iv) Explain how fish stocks can be conserved by restocking. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [3] (b) Fish have adaptive features that enable them to live successfully in their environment. Fig. 6.2 is a photograph of a great white shark, Carcharodon carcharias. Great white sharks are efficient predators and have very good eyesight to see in poor light conditions underwater. Fig. 6.2 © UCLES 2020 0610/42/F/M/20 www.dynamicpapers.com 17 (i) Describe two features, other than eyesight, visible in Fig. 6.2 that suggest that great white sharks are efficient predators. 1 ........................................................................................................................................ 2 ........................................................................................................................................ [2] (ii) Describe how the ancestors of the great white shark developed adaptive features such as good eyesight. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [5] [Total: 15] © UCLES 2020 0610/42/F/M/20 www.dynamicpapers.com DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN * 0000800000003 * 3 , 1 , Amylase is an enzyme found in the human body that catalyses the breakdown of starch into reducing sugars. Tea contains a chemical called tannin which affects amylase activity in the body. A student investigated the effect of tea on the enzyme amylase. The student used this method: Step 1 Label three test-tubes S1, S2 and S3. Step 2 Put 2 cm3 of starch suspension into all three test-tubes. Step 3 Label another three test-tubes A, AT and T. Step 4 Put 2 cm3 of amylase solution into test-tube A and 2 cm3 of amylase solution into test-tube AT. Step 5 Put 2 cm3 of tea into test-tube AT and 2 cm3 of tea into test-tube T. DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN The test-tubes are shown in Fig. 1.1. starch S1 starch S2 S3 amylase and tea amylase A starch AT tea T Fig. 1.1 Step 6 © UCLES 2024 Place all six test-tubes into a hot water-bath. ĬÏĊ®Ġ´íÈõÏĪÅĊàù·þ× Ĭä®ù×ħĕĝÖûîíÿëĦÚģĂ ĥÕåÕõµÅÕõÅÕÅąõĥõĕÕ 0610/63/O/N/24 [Turn over 4 , Step 7 Use a marker pen to label three sections on a white tile, as shown in Fig. 1.2. Step 8 Add 10 drops of iodine solution to each section, as shown in Fig. 1.2. AT T white tile DO NOT WRITE IN THIS MARGIN A first drop of yellow-brown iodine solution Fig. 1.2 Step 9 Start the stop-clock and pour the starch suspension in test-tube S1 into test-tube A. Step 10 Use a pipette to immediately remove a drop of the mixture from test-tube A and place it onto the first drop of iodine solution in section A on the white tile. Return any mixture still in the pipette to test-tube A. Step 11 Repeat step 10 every 30 seconds, until all 10 drops of iodine solution in section A have been used. Reset the stop-clock to zero. Step 12 Repeat steps 9 to 11 using test-tubes S2 and AT and section AT on the white tile. DO NOT WRITE IN THIS MARGIN , DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000004 * A AT T Fig. 1.3 © UCLES 2024 ĬÍĊ®Ġ´íÈõÏĪÅĊÞû·Ā× Ĭä®ü×ĝħĬáõõöÝćÈÊěĂ ĥĥõÕµµÅõĕĥåÅÅõÅõąÕ 0610/63/O/N/24 key: blue-black colour yellow-brown colour DO NOT WRITE IN THIS MARGIN The student’s results are shown in Fig. 1.3. DO NOT WRITE IN THIS MARGIN Step 13 Repeat steps 9 to 11 using test-tubes S3 and T and section T on the white tile. DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com 5 , , (a) The student needed to identify when all of the starch had been broken down in each test-tube. (i) Describe how the student can tell if the starch has been broken down. ..................................................................................................................................... [1] (ii) Prepare a table to record the results from Fig. 1.3. Include in your table the time taken, in seconds, for starch to be broken down in all three test-tubes. DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN * 0000800000005 * If starch remained after testing with all 10 drops of iodine solution, record this as >270. [3] (iii) State what can be concluded about the effect of tea on amylase activity. DO NOT WRITE IN THIS MARGIN ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [1] (iv) State the independent variable in this investigation. ..................................................................................................................................... [1] (v) State one variable that was kept constant in this investigation. DO NOT WRITE IN THIS MARGIN ..................................................................................................................................... [1] (vi) Test-tube T did not contain amylase and was used as a control. Suggest a reason for including a control in this investigation. ........................................................................................................................................... ........................................................................................................................................... © UCLES 2024 ..................................................................................................................................... [1] ĬÏĊ®Ġ´íÈõÏĪÅĊÞù·Ā× Ĭä­ûÏīīĜØăČ³ùïĔÊīĂ 0610/63/O/N/24 [Turn over ĥĥąĕõÕåĕąĕõÅÅĕåµĕÕ 6 (vii) , Explain why all of the test-tubes were placed in a water-bath in step 6 before the contents of the test-tubes were mixed in step 9. ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [1] (viii) A student stated that there is an error in step 4 and step 5. Identify this error and suggest how the procedure should be improved. error ................................................................................................................................... ........................................................................................................................................... improvement ..................................................................................................................... ........................................................................................................................................... DO NOT WRITE IN THIS MARGIN , DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000006 * (ix) Describe a test which would show that reducing sugars have been produced. ........................................................................................................................................... ........................................................................................................................................... © UCLES 2024 ĬÑĊ®Ġ´íÈõÏĪÅĊßù¶þ× Ĭä®ûÔġăĒÐĈùÊęćñĢěĂ ĥµåĕõõåµÅõÕÅąĕąõÅÕ 0610/63/O/N/24 DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN ..................................................................................................................................... [2] DO NOT WRITE IN THIS MARGIN ..................................................................................................................................... [2] www.dynamicpapers.com 7 , , (b) Fig. 1.4 is a photograph of a tea leaf. Fig. 1.4 Make a large drawing of the tea leaf shown in Fig. 1.4. DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN * 0000800000007 * © UCLES 2024 ĬÓĊ®Ġ´íÈõÏĪÅĊßû¶þ× Ĭä­üÜħÿĢéòĈÿ½ïåĢīĂ ĥµÕÕµĕÅÕÕąąÅąõĥµÕÕ 0610/63/O/N/24 [4] [Turn over 8 , , (c) Biological washing powders contain enzymes that help to remove stains from clothes. This reduces the need to wash clothes at high temperatures. Plan an investigation to determine the optimum temperature for a biological washing powder. ................................................................................................................................................... ................................................................................................................................................... DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000008 * ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... DO NOT WRITE IN THIS MARGIN ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ............................................................................................................................................. [6] © UCLES 2024 ĬÑĊ®Ġ´íÈõÏĪÅĊÝù¶Ā× Ĭä­ùÜĝíħÎðÿĈğÓćòēĂ ĥąąÕõĕÅõµåõÅÅõŵÅÕ 0610/63/O/N/24 DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN [Total: 23] DO NOT WRITE IN THIS MARGIN ................................................................................................................................................... 2 , (a) Fig. 2.1 is a photograph of a villus, from one part of the small intestine. A B magnification × 210 DO NOT WRITE IN THIS MARGIN 10 , DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000010 * The length of line AB represents the width of the villus in Fig. 2.1. Measure the length of line AB. length of line AB ............................................ mm Use your measurement and the formula to calculate the actual width of the villus. length of line AB in Fig. 2.1 actual width of villus DO NOT WRITE IN THIS MARGIN magnification = Give your answer to two significant figures. Space for working. ......................................................... mm [3] © UCLES 2024 ĬÑĊ®Ġ´íÈõÏĪÅĊàù¸þ× Ĭä°ùÑğõñÔ÷ĈÞăÑģÊīĂ ĥÕĥĕõĕĥõĕĕõąÅÕŵõÕ 0610/63/O/N/24 DO NOT WRITE IN THIS MARGIN (i) DO NOT WRITE IN THIS MARGIN Fig. 2.1 www.dynamicpapers.com 11 , (ii) , Fig. 2.2 shows a villus from a different part of the small intestine. DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN * 0000800000011 * magnification × 210 Fig. 2.2 DO NOT WRITE IN THIS MARGIN State two ways the villus in Fig. 2.2 differs from the villus in Fig. 2.1. 1 ........................................................................................................................................ ........................................................................................................................................... 2 ........................................................................................................................................ DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN ........................................................................................................................................... [2] © UCLES 2024 ĬÓĊ®Ġ´íÈõÏĪÅĊàû¸þ× Ĭä¯úÙĩùāåāùī×é·ÊěĂ ĥÕĕÕµõąĕąĥåąÅµåõĥÕ 0610/63/O/N/24 [Turn over DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000012 * 12 , , (b) A scientist studied the length of the small intestine in different animals. The scientist recorded: • • the body length of five different animals the length of the small intestine of each animal. For each animal, the length of the small intestine was divided by the body length. DO NOT WRITE IN THIS MARGIN Table 2.1 shows the scientist’s results. Table 2.1 cat 4 cow 20 dog 6 horse 12 human 5 Plot a bar chart on the grid of the data in Table 2.1. [4] © UCLES 2024 ĬÑĊ®Ġ´íÈõÏĪÅĊÞù¸Ā× Ĭä¯ûÙģċĈÒÿòĤõąĕÚģĂ ĥĥÅÕõõąµĥÅÕąąµąõõÕ 0610/63/O/N/24 DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN (i) small intestine length divided by the body length DO NOT WRITE IN THIS MARGIN type of animal www.dynamicpapers.com DO NOT WRITE IN THIS MARGIN * 0000800000013 * 13 , (ii) , Identify the dependent variable in this study. ........................................................................................................................................... ..................................................................................................................................... [1] (iii) The horse used in the study had a body length of 2.1 m. The small intestine length divided by the body length for the horse was 12. DO NOT WRITE IN THIS MARGIN Calculate the length of its small intestine. Include the unit. .......................................................... [2] DO NOT WRITE IN THIS MARGIN (iv) Table 2.2 also shows the main diet of the five animals in the study. Table 2.2 DO NOT WRITE IN THIS MARGIN type of animal small intestine length divided by the body length diet cat animals 4 cow plants 20 dog animals 6 horse plants 12 human plants and animals 5 Describe the relationship between the small intestine length divided by the body length and the diet of the animals. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... DO NOT WRITE IN THIS MARGIN ........................................................................................................................................... ..................................................................................................................................... [2] © UCLES 2024 ĬÓĊ®Ġ´íÈõÏĪÅĊÞû¸Ā× Ĭä°üÑĥćøçùÿåáíÁÚēĂ ĥĥµĕµĕĥÕõµąąąÕĥµĥÕ 0610/63/O/N/24 [Turn over 14 (v) , Suggest why the scientist divided the small intestine length by the body length for each animal rather than looking at just the intestine length. ........................................................................................................................................... ........................................................................................................................................... ..................................................................................................................................... [1] (vi) Suggest two possible improvements to the method used in this study. 1 ........................................................................................................................................ ........................................................................................................................................... 2 ........................................................................................................................................ ........................................................................................................................................... [2] DO NOT WRITE IN THIS MARGIN , DO NOT WRITE IN THIS MARGIN www.dynamicpapers.com * 0000800000014 * © UCLES 2024 ĬÍĊ®Ġ´íÈõÏĪÅĊÝüµĂ× Ĭä¯úÔīüĀÕïČĊýèÅĪěĂ ĥŵÕõõåõĕåąÅÅĕÅõµÕ 0610/63/O/N/24 DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN [Total: 17]
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