test 1 biology f4

8/12/2019 Test 1 Biology F4

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1. Diagram 1 shows some plants.

Diagram 1

Which of the following biologists may be able to identify these plants?

A Botanist C Entomologist

B Oncologist D Microbiologist

2. The graph shown in Diagram 2 is drawn by using the results of an experiment.

Diagram 2

The rate of reaction is

A the constant variable. C the independent variable.

B the responding variable. D the manipulated variable.

3. The following steps are carried out in a scientific investigation

What is the correct sequence?

A P, Q, R, S, T C R, S, Q, T, P

B S, R, T, Q, P D S,T, R, P, Q

P Forming the conclusion

Q Conducting the experiment

R Forming a hypothesis

S Identifying the problem

T Determining the variables

Temperature

Rat

eofreaction


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4. Protoplasm is composed of

A cytoplasm and nucleus.

B cytoplasm and plasma membrane.

C plasma membrane and nucleus.

D cytoplasm, nucleus and plasma membrane.

5. Diagram 3 shows an animal cell.

Diagram 3

What is the organelle labelled X?

A Nucleolus C Mitochondrion

B Chloroplast D Ribosomes

6. Table 1 shows the functions of four organelles.

Organelle Function

J Stores sugar and salt solutions

K Has pigments that absorb light energy for photosynthesis

L Controls the movement of substances in and out of the cellM Site of protein synthesis

Table 1

Which of the following represents organelles J, K, L and M?

K L MA Vacuole Chlorophyll Plasma membrane Mitochondrion

B Mitochondrion Chlorophyll Plasma membrane Ribosome

C Ribosome Chloroplast Cell wall Nucleus

D Vacuole Chloroplast Plasma membrane Ribosome

X


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7. Diagram 4 shows a plant cell.

Diagram 4

Which of the labelled parts is rigid, not elastic and permeable to all fluids?

8. An athlete began his intensive training on day P for a marathon event. Which of the

following graphs shows the change in the number of mitochondria in the muscle tissue

of this athletes legs?

A C

B D

A

B

C

D


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9. Diagram 5 shows a cross section of the wall of a kidney tubule.

Diagram 5

The tissue labelled Y is made up of closely packed cells which form the inner lining of

this organ. What is tissue Y?

A Nerve tissue C Epithelial tissueB Connective tissue D Smooth muscle tissue

10.Which of the following is the characteristic of collenchyma cells?

A Large central vacuole.

B Irregular thickened cell wall.

C Very thick sclerified cell wall

D Absent of protoplast

11.What is the name of the structure in Paramecium sp. that helps in osmoregulation?

A Cilia C Macronucleus

B Oral cavity D Contractile vacuole

12. Diagram 6 shows the levels of cell organisation in a multicellular organism.

Diagram 6

Which of the following is an example of R?

A C

Y

Cell Tissue R System Organism


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B D

Question 13and 14are based on Diagram 7.

13.Diagram 7 shows a model of plasma membrane proposed by Singer and Nicolson in

1972.

Diagram 7

The name of this model is

A flexi-multilayer. C lipid-fluidity model.

B fluid-mosaic model. D mosaic-permeable model.

14.The plasma membrane is considered semi-permeable because

A its permeability depends on temperature.

B it allows everything non-polar to enter or leave a cell.

C it allows everything except water to enter or leave a cell.

D it allows some substances to enter or leave a cell but not others.

15.Which of the following is an example of simple diffusion in plants?

A Carbon dioxide diffuses from the surroundings into the leaves.

B Absorption of mineral ions from the soil into the root hair cells.

C Sugar transport in the phloem from the leaves to the root.

D Water transport in xylem from the root to the leaves.


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16.Diagram 8.1 shows the movement of substance A across the plasma membrane of a cell

by process X. Diagram 8.2 shows the movement of substance B across the plasma

membrane of a cell by process Y.

Diagram 8.1 Diagram 8.2

Which of the following differences between process X and Y is correct?

Process X Process YA Active transport Facilitated diffusion

B Requires energy Does not requires energy

C Substance A moves down theconcentration gradient

Substance B moves against the

concentration gradient

D Involves carrier protein Involves pore protein

17.Diagram 9 shows a Visking tubing is filled with solution M and immersed in solution N

for one hour.

Diagram 9

SubstanceA

Process XSubstance B

Process Y

After 1 hourSolution M

Solution N

Boiling tube

Visking tubing


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What are solution M and solution N?

Solution M Solution NA 20% sucrose solution Distilled water

B 10% sucrose solution 20% sucrose solution

C Distilled water 20% sucrose solutionD Distilled water 10% sucrose solution

18.When a drop of human blood is mixed with 0.85% sodium chloride solution, the red

blood cells maintain its normal size. What will happen if the blood is mixed with 0.11%

sodium chloride solution?

A Plasmolysis C Haemolysis

B Crenation D Flaccid

19.Diagram 10 shows a graph of an experiment to study the effect of cyanide ions on the

uptake of potassium ions by Hydrilla sp. cultured in a medium containing potassium

ions.

Diagram 10

The addition of cyanide ions

A speed up the uptake of potassium ions by active transport.B speed up the uptake of potassium ions by facilitated diffusion.

C inhibits the uptake of potassium ions by active transport.

D inhibits the uptake of potassium ions by facilitated diffusion.

20.In hypotonic solutions, the protoplasm of plant cells will expand and push against the

cell wall. This force is known as

A turgor pressure. C osmosis pressure.

B osmotic pressure. D protoplasm pressure.


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SECTION B (60 marks)

1. Diagram 11 shows a typical cell structure as seen under an electron microscope.

Diagram 11

(a) Label P, Q, R and S in Diagram 11. [2 marks]

(b) State the function of the organelle labelled R and S. [2 marks]

R :

S : .

(c) (i) Which of the following cells have high density of the organelle labelled Q? Put

tick () in the correct box. [1 mark]

Epithelium Ovum Sperm

(ii) Explain your answer in 1(c)(i). [2 marks]

.

.

(d) State three differences between plant and animal cells. [3 marks]

Characteristic Plant cell Animal cell

Shape

Cell wall

Food storage

P : .

Q :

R : .

S : .


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2. Diagram 12 shows the structure of plasma membrane.

Diagram 12

(a)Name the structures, X, Y and Z. [2 marks]

X : Z : .

Y :

(b)On which side of the membrane, U or V, the cytoplasm of the cell is located?

[1 mark]

(c) Draw and label the single structure of Y. [2 marks]

(d)Give twoexamples of particle that can move through the plasma membrane throughdiffusion. [2 marks]

..

(e)By using the table below, list three differences between passive and active

transport. [3 marks]

Characteristic Passive transport Active transport

X

Z

Y

U

V


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3. Diagram 13 shows two regions, A and B, which are separated by a semi-permeable

membrane.

Diagram 13

(a) (i) Based on Diagram 13, which region is hypotonic? [1 mark]

.

(ii) Give one reason for your answer in 3(a)(i) [1 mark]

(b) After 20 minutes, an equilibrium is achieved between region A and B. Complete the

diagram below to shows the following;

The level of the solution in both regions

The number of sucrose molecules in both regions [2 marks]

Semi-permeable membrane

Sucrose molecule

Water

Region A Region B

Region A Region B


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(c) Name the process which occurs in 3(b). [1 mark]

..

(d) A few pieces of cabbage is immersed in a concentrated salt solution.

(i) Explain why the above action is able to preserve the cabbage for a long period of

time. [2 marks]

(ii) Complete diagram below by drawing the condition of the cabbage cell after the

preservation process. [2 marks]

(iii) State the condition of the cabbage cell in 3(d)(ii). [1 mark]

END OF QUESTION PAPER

*** WARNING***: Students caught copying will get ZEROfor all subjects in the test

Before preservation After preservation

test 1 biology f4

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