PODAR INTERNATIONAL SCHOOL
Practice Test- 2
Centre Number________________________
Date. _____/_____/2024
Name: ___________________________________
Std. VIII
Roll No: _______
Subject: Biology/0610
Read the Instructions given below:
1. Answer all questions.
2. The number of marks is given in brackets [ ] at the end of each question or part
question.
3. Electronic calculators may be used.
4. You may lose marks if you do not show your working or if you do not use
appropriate units.
Invigilator’s Name: _________________________________
Signature: ________________________________________
Cambridge/VIII/23-24
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Paper 2 (MCQ)
1 Choose the most appropriate answer:
(a)
The diagram shows a leaf.
Use the key to identify the plant to which the leaf belongs.
[1]
(b)
A student made the following statements about the movement of ions by active
transport.
1 It is the net movement of particles from a low concentration to a high
concentration.
2 It is the net movement of particles from a high concentration to a low
concentration.
3 It requires the use of energy from respiration.
4 It can only take place in living cells.
Which statements are correct?
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Page 2 of 5
A
1, 3 and 4
B
1 and 4 only
C
2 and 4 only
D
2 only
[1]
(c)
When a food substance is tested with iodine solution, which colour shows the
presence of starch?
A Black
B
Blue-black
C
Purple
D
Orange
[1]
(d)
A food stain on a table cloth is where meat cooked in oil has been spilt.
It is washed in a biological washing powder.
Which combination of enzymes should be in the washing powder to remove the
stain?
A amylase and lipase
B
protease and pectinase
C
pectinase and amylase
D
lipase and protease
[1]
Paper 4 (Theory)
2 (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
[Total: 3]
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[1]
3 Table 3.1 shows the enzyme activity of alcohol dehydrogenase at different temperatures.
Table 3.1
(a)
The information in Table 3.1 shows that an increase in temperature increases the
activity of alcohol dehydrogenase.
Explain why an increase in temperature causes an increase in enzyme activity.
[3]
(b)
State one factor, other than temperature, that affects enzyme activity.
[1]
[Total: 4]
4 Some cells are specialised to perform a particular function.
The boxes on the left show the names of some specialised cells.
The functions of some specialised cells are in the boxes on the right.
Draw three lines to link each specialised cell with its function.
One line has been drawn for you. Draw three additional lines.
specialised cells
functions
Neurone
Absorption of water
Palisade mesophyll cell
Conducting of impulses
Red blood cell
Photosynthesis
Root hair cell
Transport of oxygen
Conduction and support
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[3]
Paper 6 (ATP)
5
Fig. 5.1 is a photograph of a cross-section of a vascular bundle in a leaf.
Fig 5.1
(a)
(i) Make a large drawing to show the different regions of the vascular bundle
shown in Fig. 5.1
Do not draw any individual cells.
Identify and label on your drawing the position of the xylem vessel as
shown in Fig. 5.1.
[5]
(ii) State one way visible in Fig. 5.1 in which the xylem vessel is different from
the phloem tube.
[1]
[Total: 6]
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