SCIENCE-CHECKPOINT-BIO-PROGRESSION TESTS 2015-16-QUESTIONS FOR STAGE-7-GRADE 6 P1 1.PLANTS & HUMAN ORGANS 4 The human body is made up of organ systems. (a) Draw a line to connect each organ system to its main function. organ system main function digestive transport nutrients circulatory break down nutrients nervous remove waste excretory gas exchange respiratory co-ordination [3] (b) Here is a diagram showing the muscles and bones in the arm. 1 (i) Label the two muscles. [1] (ii) How do the two muscles work together to make the arm bend? [2] P2- 2 11.Jovana investigates the growth of trees in a forest. (a) Suggest one way Jovana can measure how much a tree grows in one year. [1] (b) Jovana sees a tree trunk that has been cut down. This picture shows the inside of the tree trunk. Jovana knows that tree trunks produce a new ring of growth each year. (i) How can she tell how old the tree is? [1] (ii) What would she measure to find out how much this tree grew last year? [1] 3 (c) Give two reasons why a tree grows at different rates each year. 1 2 [2] 2.CELLS & ORGANISMS 3.Bacteria are micro-organisms and can be used in food production. It is important to find out the best conditions for bacteria to reproduce. When bacteria reproduce they form colonies. This Petri dish has six bacterial colonies. petri dish colonies 4 Here are the results for identical Petri dishes kept in different conditions. without oxygen with oxygen 10.Complete the table about cells. cells appearance function to carry electrical impulses a nerve cell a sperm cell tiny cell with a nucleus and a long tail cell contains lots of chloroplasts a plant leaf cell [3] 5 7.Plant cells contain many parts. cell wall chloroplast nucleus ........................................... cytoplasm cell membrane (a) One part of this cell has not been named. Add this name to the diagram. [1] (b) Chloroplasts are not found in all plant cells. (i) Name a plant cell that has chloroplasts. [1] (ii) Name a plant cell that does not have chloroplasts. [1] (c) Two parts labelled on the diagram are not found in any animal cells. Which two parts? 1 2 [1] 6 3.LIVING THINGSIN ENVIRONMENT: 7……Herons are birds that eat fish. (a) The picture shows how the heron is adapted to hunt and catch its own food. Write two ways in which the heron is adapted. 1 2 [2] (b) Write the name for the type of animal which hunts and catches its own food. [1] P2 6 The diagrams show four different organisms. grasshopper grass 7 hawk toad NOT TO SCALE (a) (i) Complete the food chain for these organisms. (ii) Which organism in this food chain is a producer? [1] (iii) All the toads in this food chain are removed by humans to make medicines. Suggest what happens to the hawks. [1] (b) Underline the three words that can be used to classify a hawk. reptile bird animal vertebrate invertebrate [2] 8 amphibian plant mammal 2015-progression test:PLANTS & HUMANORGANS P1 6 The diagram shows the four main muscles, labelled A to D, in a human arm. A B D C (a) Write down two letters of muscles which are an antagonistic pair. ................... and ................... [1] (b) Write the letter of the muscle which must contract to bend the hand upward at the wrist. ................... [1] (c) Write the letter of the muscle which must relax to straighten the arm from the position shown in the diagram above. ................... [1] 1 The diagram shows a flowering plant. 9 A B roots (a) Name parts A and B. A ...................................................................................................................................... B ..................................................................................................................................[2] (b) Write down one function of the roots. .......................................................................................................................................... ......................................................................................................................................[1] (c) Why does a plant like this produce flowers? Circle the correct answer. to absorb water to attract insects to produce energy [1] 2 The diagram shows some of the major organs in the human body. 10 (a) the liver [1] (b) the small intestine. [1] 11 2.CELLS & ORGANISMS:1 The diagram shows what a plant cell looks like under a microscope. 12 X chloroplast (a) Name the part labelled X. ......................................................................................................................................[1] (b) State two features which you can see in the diagram that are not found in animal cells. 1 ........................................................................................................................................ 2 ....................................................................................................................................[2] (c) Explain why a microscope must be used to see a plant cell like this. .......................................................................................................................................... ......................................................................................................................................[1] 2 The diagrams show four cells labelled A to D. 13 A B D (a) Which of the cells is a plant cell? Write the letter ................... [1] (b) Name cell B. ......................................................................................................................................[1] (c) Complete the table with the letter of the cell matched to its function. function letter to carry signals around the body ................... to absorb water ................... to carry oxygen ................... [3] 14 3.LIVING THINGSIN THE ENVIRONMENT: 7 The pictures show two insects, a hoverfly and a wasp. hoverfly wasp Both of these insects can be found living in the same places. The wasp can give a very painful sting to an animal or another insect. The hoverfly has no sting. (a) Write down one advantage to the wasp of being able to sting. .......................................................................................................................................... ......................................................................................................................................[1] (b) Write down one advantage to the hoverfly of looking like a wasp. .......................................................................................................................................... ......................................................................................................................................[1] (c) Some wasps catch and eat other insects. Which word describes one of these wasps? Tick () the correct box. herbivore predator 15 prey producer [1] PAPER2 11 Colin puts two identical trays containing soil and seeds in the classroom. He gave each tray the same amount of water every day. One tray, A, was left beside a window in the light and the other, B, in a dark cupboard. Both trays were at the same temperature. The diagram shows the young plants two weeks after planting. A B (a) Write down two differences that you can see between the plants in trays A and B. 1 ...................................................................................................................................... 2 ……………………………………………………………………………………………………………………………… [2] 16 17