SMK CHUNG HUA MIRITOPICAL TEST FORM 5BIOLOGY 201540 marks/ 40 minutesNAME:______________________________ CLASS:______PAPER 11. What is the interaction between a crab and the barnacles?A. Parasitism B. Mutualism C. Saprophytism D. Commensalism

2. Diagram 1 shows the process of colonisation and succession in a pond.

Diagram 1Which of the following is the correct sequence of colonisation and succession?A. P,Q,R,SB. Q,R,P,SC. P,S,Q,RD. S,P,R,Q

3. A quadrat measuring 1m is used to study the percentage cover of Mimosa pudica. Table 1 shows the results obtained by the quadrat sampling technique. QuadratArea covered by Mimosa pudica (m)

10.60

20.68

30.37

40

50.35

Table 1What is the percentage cover of Mimosa pudica?A. 4% B. 20%

C. 40%D. 0%

4. Diagram 2 shows information printed on a pack of milk.Statement X

Diagram 2Which statement explains why the milk turns sour, if state X is not followed?A. Low temperature kills the bacteriaB. There are no bacteria in the refrigeratorC. Low temperature prevents bacterial growthD. Enzymes in the milk are active at room temperature.

5. Which of the following statements is not true about method of reproduction of virus?A. The materials to produce new virus are produced by the host cellsB. The nucleic acid plays an important role in the reproduction of virusC. Virus can be reproduce by binary fissionD. Virus is unable to reproduce in dead host cells

6. Which of the following steps can help to reduce global warming?I. ReforestationII. Use scrubbers in chimneysIII. Reduce the burning of fossil fuelsIV. Strict enforcement of laws on environment

A. II and IV onlyB. I, II and III only

C. I, III and IV only

D. I, II, III and IV

7. Which of the following statements describe biochemical oxygen demand?A. It indicates the amount of pollutants in the waterB. It is an indicator to measure the level of water pollutionC. It is the quantity of oxygen used by aquatic organismD. It is the quantity of oxygen released by aquatic organism.

8. Which of the following can cause the thinning of ozone layer?A. Burning of fossil fuelsB. Throwing of rubbish into the riverC. Use of substances contain chlorineD. Construction of glass building

9. Table 2 shows the result of an experiment to compare the qualities of water from two areas, R and S.Water sampleTime taken for methylene blue to decolorize (min)

Area R45

Area S22

Table 2Which of the following statements explain the result of the experiment?I. Water sample from area R is more polluted than area S.II. Water sample from area R has lower B.O.D value than area SIII. Water sample from area R has less microorganisms than area S.IV. Water sample with higher B.O.D value causes slow decolourization of methylene blue. A. I and III onlyB. II and III only

C. II and IV onlyD. III and IV only

10. Nitrates and phosphates from farmland that flow into a lake caused rapid growth of algae. What is described by the above situation?A. EutrophicationB. Pesticide pollutionC. Fertilizer accumulationD. Colonisation

11. Which organism has the largest total surface area over volume?A.

B.

C.

D.

12. Which of the following about a large multicellular organism are true?I. Has a large TSA/ V ratioII. Has a small TSA/V ratioIII. Has a transport systemIV. The cells obtain nutrients by diffusionA. I and II onlyB. I and III only

C. II and III onlyD. III and IVonly

13. What is a circulatory system?A. The bodys breathing systemB. The bodys system of nervesC. The bodys food-processing systemD. The bodys blood-transporting system

14. Which of the following about this type of circulation of fish is not true?A. Blood leaks out and fills the body cavityB. Blood is pumped by a heart through vesselsC. Blood is circulated closed within vessels at all timesD. Blood passes through the once in each complete circulationQuestion 15 and 16 refer to Diagram 2.

Diagram 215. Which blood vessel carries oxygenated blood away from the heart?A. PB. Q

C. RD. S

16. Which blood vessels returns oxygenated blood to the left atrium?A. PB. Q

C. RD. S

17. Which part of the heart receives deoxygenated blood?A. Right atriumB. Left atrium

C. Left ventricle D. Right ventricle

18. Which is the last step in blood clotting?A. Thrombokinase is releasedB. Fibrinogen is converted to fibrinC. Prothrombin is converted to thrombinD. Vitamin K and calcium ions are absorbed

19. A gardener experiences non-stop bleeding after hurting his foot while gardening. What will happen if his blood is unable to clot?A. Blood pressure decreaseB. Blood capillaries enlargeC. The rate of heart beat increaseD. The rate of respiration increase

20. Diagram 3 shows a man suffering from a disease. The disease is characterized by the thickening of the skin and enlargement of a limb.

Diagram 3Which of the following is the cause of the disease?A. Uncontrolled mitosis in the infected areaB. Attack of the lymphocytes by the HIV C. Blockage of the lymphatic vessels by parasitic wormsD. Hormonal imbalance in an endocrine gland.Answer :4