biologi may exam paper 1

8/8/2019 Biologi May Exam Paper 1

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1. The movement of dissolved substances

from a region of high concentration to

one of low concentration is known as

A diffusion.

B haemolysis.

C plasmolysis.

D osmosis.

2. The movement of water molecules from

a hypotonic solution to a hypertonic

solution through a semi-permeable

membrane is known as

A diffusion.

B passive transport.

C osmosis.

D active transport.

3. The pressure that is exerted on the inside

of the cell wall by the cell sap is known

as

A turgor pressure.

B cell pressure.

C osmotic pressure.

D hydrostatic pressure.

4. The breaking up of red blood cells

resulting in the protoplasm being

released to the surrounding is known as

A crenation.

B plasmolysis.

C phagocytosis.

D haemolysis.

5. Crenation is a process whereby the cells

reduce in size due to loss of

A glucose.

B cytoplasm.

C water.

D protoplasm.

6. A simple apparatus used to show the process of osmosis is an

A osmoregulator.

B atmometer.

C osmometer.

D osmoreceptor.

7. Which of the following processes in

plants does not require energy?

A Growth of pollen tube

B Mineral salts absorption

C Meiosis

D Water diffusion

8. A membrane which allows the passage

of small molecules but not large

molecules is said to be

A permeable.

B semi-permeable.

C porous.

D semi-porous.

9. Which of the following water samples is

the most hypotonic?

A River water

B Rain water C Well water

D Distilled water

10. A root hair of a plant is an example of a

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SMK PENGIRAN OMAR IIBiology

Paper 1 12 May 2010 1 Hour 15 Minutes

Name : Class: Marks:

Instruction : For Question 1 to Question 50, each question is followed by four options A, B, C andD. Choose the correct anwser for each question



A cell.

B tissue.

C organ.

D organism.

11. A group of cells that have the same

structure and function is a

A tissue.

B organ.

C organ system.

D organism.

12. Sexual reproduction in Paramecium is

A budding.

B conjugation.

C binary fission.

D spore formation.

13. Locomotion in Amoeba is by

A cilia.

B ectoplasm.

C endoplasm.D pseudopodium.

14. The diagram shows the structure of a

cell.

Which of the following structures are

semi-permeable membranes?

A K and L only

B L and M only

C M and N only

D L and N only

15. The diagram shows the condition of a

plant cell immersed in 30% sucrose

solution for an hour.

What is contained in P?

A Distilled water

B Cell sap

C Sucrose solution

D Cytoplasm

16. The cell membrane is made up of

A lipid and protein.

B phospholipid and lipid.

C cellulose and protein.

D protein and phospholipid.

17. The diagram shows a phospholipid

molecule.

The tail end of the molecule allows easy

passage of molecules that are

A hydrophobic.

B hydrophyllic.

C charged.

D small.

18. The diagram shows a plant strip

immersed in solution X for 30 minutes.

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What is solution X?

A Sucrose solution 5%.

B Sucrose solution 30%.

C Salt solution 1%.

D Distilled water.

19. Which of the following is correct

regarding the transport of water and

mineral ions in a root hair?

Mineral ions Water

A Active transport Diffusion

B Active transport Osmosis

C Facilitated

diffusion

Osmosis

D Active transport Facilitated

diffusion

20. The diagram shows active transport in

an aquatic plant.

What is structure P?

A Plasma protein

B Carrier protein

C Channel protein

D Potassium

21. The diagram is an experiment to show

the movement of water through a

membrane.

At the end of the experiment, the water

level in the glass tube will rise because

A glucose solution flowed out of the

visking tubing.

B water goes into the visking tubing.

C air goes into the visking tubing.

D atmospheric pressure causes the

water level to rise.

22. The diagram shows a paramecium

What structure will help to maintain the

osmotic concentration of the body?

A K B L

C M

D N

23. The diagram shows a spinach strip

immersed in sucrose solution 30 %.

What process is taking place?

A Osmosis

B Plasmolysis

C Deplasmolysis

D Haemolysis

24. An onion cell was placed in 50 %

sucrose solution. After 30 minutes, the

cell was observed under the microscope.

What is the most likely observation of

the cell?

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A

B

C

D

25. Amoeba that is immersed in distilled

water does not undergo haemolysis

because

A it has a cell wall.

B the osmotic presure in and out of

the cell is the same.

C it has contractile vacuole which is

an osmoregulatory organelle.

D it has an elastic plasma membrane.

26. A stomach is an example of an organ

because

A it is made up of different tissues that

work together to perform a specificfunction.

B it is a bladder that secretes gastric

juice.

C it is a bladder that can store food.

D it is made up of different cells that

perform different functions.

27. Which of the following solution has the

highest osmotic pressure?

A 0.1 M sucrose solution

B 0.5 M sucrose solution

C 1 M sucrose solution

D 2 M sucrose solution

28. Which of the following substances can

go through the plasma membrane easily?

A Amino acid

B Protein

C GlucoseD Glycerol

29. The diagram shows a plant cell that can

absorb water and mineral ions.

Which of the two processes that are

involved in the movement of water and

mineral ions?

Water Mineral ions

A Osmosis Facilitated

diffusion

B Osmosis Active transport

C Facilitated

diffusion

Active transport

D Active transport Osmosis

30. A plant cell that has palsmolysed can be

returned to its original shape by

immersing the cell in

A distilled water.

B sucrose solution 0.4 M.

C sodium chloride solution.

D glucose solution 30 %.

31. How does osmoregulation occur in fresh

water fish?

A Excreting dilute urine frequently

B Consuming a lot of food

C Absorbing salt

D The cytoplasm has a high

concentration of salt.

32. Preservation of food involves the

elimination of water from the food by

A active transport.

B osmosis.

C facilitated diffusion.D simple diffusion.

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33. Which of the following can only occur

in living cells?

A Simple diffusion

B Facilitated diffusion

C Dialysis

D Active transport

34. The diagram shows a plant cell

immersed in a hypertonic solution.

Which of the following shows the plant

cell after it has been transferred to a

hypotonic solution for 5 minutes?

35. The diagram shows the state of cells

immersed in a hypertonic solution.

The cells are undergoing a process

known as

A crenation.

B haemolysis.

C plasmolysis.

D deplasmolysis.

36. The diagram shows 3 types of cells

placed in solution P, Q and R. After 15

minutes, slides for the 3 cells were

prepared. The result is as shown below.

Which of the following shows the

condition of solutions P, Q and R?

Solution P Solution Q Solution R

A Hypertonic Hypotonic Isotonic

B Hypotonic Hypertonic Isotonic

C Isotonic Hypertonic Hypotonic

D Hypertonic Isotonic Hypotonic

37. An experiment was carried out in which

cylindrical potato strips were placed in

sucrose solutions of different

concentration. The mass of the potato

strips at the beginning and end of the

experiment was recorded. Which of the

following graphs represents the result of

the experiment.

A

B

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C

D

38. A thin layer of the epidermis of the

onion was placed in 30% sucrosesolution. After 30 minutes, the cell was

observed under the microscope. Which

of the following would represent the

condition of the cell?

A

B

C

D

39. Which of the following processes will be

affected by the presence of a respiratory

poison?

A Absorption of water by the root.

B Absorption of digested food in the

intestine.

C Intake of mineral ions by plants.

D Movement of amino acids through

the cell membrane.40. The diagram shows the structure of an

onion cell immersed in solution P and

then in solution Q for 10 minutes.

What is the process that is occurring in

solution P and Q?

Solution P Solution Q

A Plasmolysis Osmosis

B Plasmolysis Deplasmolysis

C Haemolysis Osmosis

D Deplasmolysis Plasmolysis

41. The diagram shows strips of a plant stem

immersed in solutions of different

concentration.

Which of the following shows the

correct sequence of the concentration of

the solutions in decreasing order

compared to the cell sap?

A P, Q, R.

B Q, R, P.

C Q, P, R.

D R, P, Q.

42. The diagram shows a few onion cells

before and after being immersed in

solution Y.

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Which of the following could be

solution Y and what is the process?

Solution Y Process

A Sucrose solution 30 % Plasmolysis.

B Glucose solution 5 % Osmosis.

C Salt solution 10 % Haemolysis.

D Salt solution 10 % Crenation.

43. The diagram shows the condition of

erythrocytes after immersion in solution

X.

Solution X could be

A distilled water.

B glucose solution 3 %.

C sucrose solution 50 %.

D salt solution 10 %.

44. Four strips of spinach stem are

immersed in solutions of different

concentration.

Which of the following could be

solution W, X, Y, Z?

W X Y Z

A Sucrose

5 %

distilled

water

Sucrose

50 %

Sucrose

20 %

B Sucrose

5 %

Sucrose

20 %

Sucrose

50 %

distilled

water

C distilled

water

Sucrose

20 %

Sucrose

5 %

Sucrose

50 %

D distilledwater

Sucrose5 %

Sucrose50 %

Sucrose20 %

45. The apparatus shows a thistle funnel

filled with distilled water immersed in

concentrated sucrose solution.

Which of the following graphs best

describes the change in height, h of thewater in the thistle funnel?

A

7



B

C

D

46. The experiment is to study the process of

osmosis in potato tissue.

After 3 hours, what is the result of the

experiment?

A

B

C

D

47. The diagram shows the condition of 4

spinach strips after they were immersed

in sucrose solutions of different

concentrations.

Which of the following could be the

correct solution for each strip?

K L M N

A Isotonic Hypotonic Hypertonic Hypertonic

B Isotonic Hypertonic Hypertonic Hypotonic

C Isotonic Hypertonic Hypotonic Hypertonic

D Isotonic Hypotonic Hypotonic Hypotonic

48. A red blood cell and an onion cell were

placed in solutions X and Y. After 20

minutes, the cells were observed under a

microscope. The diagram shows the

observation of the cells.

Solutions X and Y are

Solution X Solution Y

A Hypotonic Hypertonic

B Isotonic Hypertonic

C Isotonic Hypotonic

D Hypotonic Isotonic

49. If fresh water Paramecium were to be

put into the sea, what will happen to the

contractile vacuole?

A Increase in size

B Burst at a fast rate

C Contracts slowly

D Does not function

50.Four potato strips were placed in the petri dishes as shown in the diagram

below .

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Their average lengths were measured

over time and the results are plotted on a

graph.

Which graph shows the result for the

strip of potato in 0.1 M sucrose solution?

A W

B X

C Y

D Z

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biologi may exam paper 1

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