Bio Paper 1 Mid Term 2011

7/27/2019 Bio Paper 1 Mid Term 2011

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SECTION A

1. Figure 1 shows a cross-section of a plant cell.

FIGURE 1

Which organelle is involved in cellular respiration?

A P C R

B Q D S

2. A scientist carries out investigations on bacteria, viruses, protozoa, fungi and algae. What is

his field of study in biology?

A virology

B bacteriology

C entomology

D microbiology

3. Figure 2 shows part of a DNA molecule.

FIGURE 2


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Which of the following represents Q, R and S?

Pentose sugar Nitrogenous base Phosphate group

A Q R S

B Q S R

C S R Q

D S Q R

4. Which of the following are functions of water?

I Component of cell membrane.

II Solvent for solutes, provides an aqueous medium for biochemical

reactions.

III Turgid cells give support to herbaceous plants.

IV As a reactant in photosynthesis.

A I and II only

B I, III and IV only

C II, III and IV only

D I, II, III and IV

5. The Figure 3 shows a stage during mitosis in a plant cell.

FIGURE 3

What is the number of chromosomes in each daughter cell after completing the cell

division?A 2

B 4

C 8

D 16


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6. Figure 4 shows different phases of a cell cycle. Phase X is an interphase and

phase Y is a mitotic phase.

FIGURE 4

What are represented by P, Q, R, U and V?

P Q R U V

A Mitosis Cytokinesis DNA replication Cell growth Growth gap

B Growth gap Cell growth DNA replication Cytokinesis Mitosis

C Cell growth DNA replication Growth gap Mitosis Cytokinesis

D DNA replication Cell growth Growth gap Mitosis Cytokinesis

7. The diagram shows various stages in a cell division.

I II III IV

Arrange the diagram to show the correct sequence of a cell division.

A IV IIIIII

B I IV II IIIC II IV III I

D II IIII IV


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8. Figure 5 shows several stages in meiosis.

FIGURE 5

Which of the following is not true about P?

A Homologous chromosomes separate and move to the opposite poles.

B The spindle fibres pull the chromosomes away from one another.

C Stage P is called Anaphase I.

D Four chromosomes move towards each pole.

9. G1, G2, M and S in the diagram show the phases of a cell cycle.

DNA synthesis is represented by.

A G1 B G2

C M D S

10. Figure 6 shows cells P and Q undergoing cell division.

FIGURE 6


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Which of the following statement is true about K and L?

K L

A It carries genetic information. It begins to form during prophase.

B Each daughter cell of P contains

half the number of K.

It is attached to the centromere.

C Haploid number in each

daughter cell.

It pulls the chromosomes to the

opposite poles.

D Crossing over occurs. It still exists in the daughter cells.

11. Figure 7 shows one stage of a meiotic cell division.

FIGURE 7

The possible chromosomes in each daughter cell are

I P and Q

II R and S

III Q and R

IV P and S

A I and II only

B III and IV only

C I, II and III only

D I,II, III and IV

12. Figure 8 shows a mitotic cell division.

FIGURE 8


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What are represented by P, Q, R and S?

P Q R S

A Chromatid Centriole Centromere Spindle fibre

B Centriole Chromatid Spindle fibre Centromere

C Chromatid Centromere Centriole Spindle fibre

D Centromere Spindle fibre Chromatid Centriole

13 . Figure 9 shows a mitotic division of an animal cell.

FIGURE 9

The processes that occur before and after this stage are

Before After

A Interphase Cytokinesis

B Prophase Metaphase

C Metaphase Telophase

D Anaphase Prophase

14. Figure 10 shows a mitotic division during Prophase I in an anther of a flowering

plant.

FIGURE 10


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How many chromosomes are found in a pollen grain?

A 1

B 2

C 4

D 16

15. Which of the following stage of mitosis is shown in the Figure 11 below?

FIGURE 11

A Prophase

B Metaphase

C Anaphase

D Telophase

16. Figure 12 shows a cell division of an animal cell.

FIGURE 12

How many chromosomes are found in the heart cell?

A 2

B 4

C 8

D 16


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17. Figure 13 shows a cell division during Telophase II of an animal cell.

FIGURE 13

How many chromosomes are found in its skin cell?

A 2

B 4

C 8

D 6

18. Which of the following statements are not true about the Figure 14 below?

FIGURE 14

I The cell is undergoing an interphase stage.

II The chromosomes are long and threadlike.

III A new combination of genes occurs on a chromosome .

IV This stage exists at the apical meristem of a plant.

A I and II only

B II and III only

C III and IV only

D II, III and IV only


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19. Figure 15 shows a cell division.

FIGURE 15

What is the stage of cell division and how many chromosomes are found in each

daughter cell?

Stage Number of chromosomes

A Metaphase 4

B Prophase 4

C Anaphase II 2

D Metaphase I 2

20. Which of the following is true about the Figure 16 below?

FIGURE 16

A. The cell division occurs at an ovule cell.

B. Each daughter cell consists of two pairs of chromosomes.

C. When the cell division is completed, 2 daughter cells are produced.

D. All the chromosomes are identical.

21. Rearrange the phases of cell division shown in Figure 17 in the correct order.

FIGURE 17


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A P S Q R B R S Q P

C R Q S P D S Q P R

22. Which of the following is produced from a meiotic division?

A. B.

C. D.

23. Which of the following shows the differences between mitosis and meiosis?

Mitosis Meiosis

I Cell divides once Cell divides twice

II Daughter cell is diploid Daughter cell is haploid.

III Parent cell is diploid Parent cell is haploid

IV Four daughter cells are formed Two daughter cells are formed.

A I and II only

B II and III only

C III and IV onlyD II, III and IV only


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24. Which of the followings are not true about cloning a sheep.

I A heart cell and an egg cell are used.

II The heart cell is fused with a fertilized egg.

III The organisms produced have different genetic content from the parent.

IV Clones can be produced in larger numbers but in a longer time.

A I and II only

B III and IV only

C I, II and III only

D II, III and IV only

25. Figure 18 shows the procedure to carry out a food test.

FIGURE 18Identify the food sample being tested.

A. Protein.

B. Lipid.

C. Starch.

D. Sucrose.

26. Figure 19 shows the longitudinal section of a stomach.

FIGURE 19


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Which of the following is the function of the ring of muscle X?

A. Regulates the flow of enzyme into the stomach.

B. Controls the amount of acid released in the stomach.

C. Stops the food from flowing into the duodenum.

D. Regulates the release of food from the stomach to the duodenum.

27. Figure 20 shows the apparatus set-up used in determining the energy value in a cashew

nut.

FIGURE 20

The following reading were obtained from the experiment.

Mass of cashew nut 0.6 g

Volume of water used 20.0 ml

Initial temperature of water 40o C

Final temperature 80o C

Calculate the energy value of the cashew nut per gram. [ Specific heat capacity of water =

4.2 J g -1 oC -1].

A. 5.6 kJ. B. 13.0 kJ.

C. 5600 kJ. D. 1333 kJ.

28. Figure 21 shows one of the systems in a human.

FIGURE 21


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Which of the following is the function of the system shown?

A. Converts complex molecules to simple molecules.

B. Controls the body temperature.

C. Fights infection.

D. For reproduction.

29. Figure 22 shows the right proportion for the various classes of food in a food pyramid.

FIGURE 22

Which of the following shows the correct classes of food in the pyramid?

1 2 3 4

A Fats Proteins Carbohydrates Vitamins and

minerals

B Carbohydrates Vitamins and

minerals

Proteins Fats

C Proteins Carbohydrates Fats Vitamins and

minerals

D Carbohydrates Fats Vitamins and

minerals

Proteins

30. Figure 23 shows the apparatus used to test for the presence of starch in green leaf.

FIGURE 23


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What is the purpose of heating the leaf in ethanol?

A. To soften the leaf.

B. To kill the bacteria on the leaf.

C. To kill the cell and break down the cell wall.

D. To dissolve and remove chlorophyll from the leaf.

31. Figure 24 shows an experiment carried out to determine the concentration of vitamin C in

pineapple juice.

FIGURE 24

The data obtained were as shown above. If 2.5 ml of the pineapple juice was required to

decolourise 1 ml of DCPIP, calculate the concentration of vitamin C in 100 ml of the juice.

A. 2.5 mg / 100 ml.

B. 4.0 mg / 100 ml.

C. 40 mg / 100 ml.

D. 250 mg / 100 ml.

32. Figure 25 shows the apparatus set-up to study the effects of macronutrient deficiencies in

plant.

FIGURE 25

What is the purpose of connecting the apparatus to the air pump?


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A. To eliminate the carbon dioxide in the glass jar.

B. To provide aeration to the roots so that respiration can take place.

C. To pump out excessive culture solution in the glass jar.

D. To eliminate any insoluble particles in the solution.

33. Figure 26 shows the structure of a villus.

FIGURE 26

Which of the following are the nutrients found in P and Q?

P Q

A Fatty acids, glycerol and

minerals

Glucose and amino acids

B Glucose and amino acids Mineral ions and fat droplets

C Mineral ions, glucose, amino

acids and Vitamins B and C.

Fatty acids, glycerol and vitamins

A, D, E and K

D Glucose, amino acids and

vitamins A, D, E and K

Fatty acids, glycerol and vitamins

B and C.

34. Figure 27 shows a model of the small intestine.

FIGURE 27

After 30 minutes, the water in the beaker will show the presence of


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A Glucose only.

B Starch only.

C Both glucose and starch.

D Neither glucose nor starch.

35. Figure 28 shows a series of enzyme action on a substrate.

FIGURE 28

What are T, U, V, W and X?

T U V W X

A Enzyme Substrate Complex Enzyme Products

B Substrate Enzyme Complex Enzyme Products

C Complex Substrate Products Enzyme Enzyme

D Products Enzyme Substrate Complex Enzyme

36. Figure 29 shows the set-up of the apparatus used in an experiment to determine the

energy content in the cashew nut. At the start the boiling tube was filled with 20 ml of

water at a temperature of 30 oC.

FIGURE 29

Using the data from the experiment, calculate the energy content of the cashew nut per

gram. . [ Specific heat capacity of water = 4.2 J g -1 oC -1].


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A 149.0 J/g.

B 218.4 J/g.

C 6825 J/g.

D 5420 J/g.

37. Figure 30 shows the effect of aquatic plants on the universal indicator in two different

conditions. Both the tubes X and Y are exposed to the light.

FIGURE 30

What are the processes taking in tubes X and Y?

38. Figure 31 shows an investigation to study a factor necessary for photosynthesis. A plant

with variegated leaf of green and yellow part is used.

FIGURE 31

After being exposed to sunlight for half an hour, the leaf is tested for starch. The results is as

shown in the figure above. What factor is being investigated?

Tube X Tube Y

Photosynthesis Respiration Photosynthesis Respiration

A X X X

B X X

C X

D X


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A. Water.

B. Chlorophyll.

C. Carbon dioxide.

D. Sunlight.

39. Figure 32 shows the structure of a chloroplast.

FIGURE 32

In which of the following structures does the light reaction occur during photosynthesis?

A. P

B. Q

C. R

D. S

40. Figure 33 shows the effect of pH on the rate of activity.

FIGURE 33

The activity is catalysed by enzyme

A. tripsin.

B. amylase

C. pepsin

D. lipase


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41. Figure 34 shows part of the nephrone structure in the kidney.

FIGURE 34

What is the process at X?

A Filtration

B Ultrafiltration

C Microfiltration

D Macrofiltration

42. Figure 35 shows the structure of a human nephron.

FIGURE 35

Which labelled parts show positive tests for the presence of chloride ions, proteins and

reducing sugar?

Chloride ions Proteins Reducing sugar

A III II I

B IV I II

C V I IV

D III IV I


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43. P is a gas, Q is a form of energy and R is a liquid absorbed by the plant shown in the

Figure 19 below for photosynthesis. What are P, Q and R?

Figur e 19

FIGURE 36

P Q R

A Oxygen Lightning Alcohol

B Carbon dioxide Sunlight Water

C Nitrogen Lightning Alcohol

D Oxygen Sunlight Water

44. Figure 37 below shows a section through a leaf of a plant.

FIGURE 37

What plant is it likely to be?

A. Cactus

B. Hydrilla sp.

C. Hibiscus

D. Water lily


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45 Anaerobic respiration occurs in

A. cytoplasm of the cell.

B. the nucleus.

C. the mitochondrion.

D. the golgi apparatus.

46. What are the products of anaerobic respiration in yeast cells?

I. Lactic acid.

II. Energy (38 ATP released. for each glucose).

III. Carbon dioxide.

IV. Ethanol.

A. I and ll only.

B. III and IV only.

C. I, II and IV only.

D. I, II, III and IV.

47 Which of the following are not the differences between aerobic and anaerobic

respiration?

I.

II.

III.

IV.

A. I and II only.

B. III and IV only.

C. I, II and IV only.

D. I, II, III and IV.

Aerobic respiration Anaerobic respiration

Uses oxygen. Does not use oxygen.

Large amount of energy released. Small amount of energy released.

In plants and yeast, glucose is

converted to alcohol and carbon

dioxide.

No alcohol and carbon dioxide are

produced in plants and yeast.

Glucose is converted to lactic acid. No lactic acid is produced.


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48. Which of the following processes does not occur during inhalation?

A. The diaphragm contracts and flattens.

B. The ribcage is pulled upwards and outwards.

C. Volume of thoracic cavity increases and air enters into the lungs.

D. Internal intercostal muscles contract, external intercostal muscles relax.

49. In plants, mitotic division occurs actively in the.

A meristematic tissue

B epidermal tissue

C parenchyma tissue

D collenchymas tissue

50. Which of the following is the phase mitosis during which chromosomes become visible and

the centrioles separate from one another?

A prophase

B anaphase

C metaphase

D telophase

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Bio Paper 1 Mid Term 2011