Name : ……………………….. …… Form : ………….

SEKOLAH MENENGAH KEBANGSAAN

MID SEMESTER EXAMINATION

SCIENCE FORM 2

Paper 1

One hour and fifteen minutes

DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

1. This question paper consists of 40 questions.

2. Answer all questions.

3. Answers must be written in the paper of Objective Answer.

4. This question paper must be handed in at the end of the examination.

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1. Which of these pairs is matched correctly?

A. Tongue- chemicals in airB. Eyes – lightC. Ears – pressureD. Skin – chemicals in food

2. are special structures found in sensory organs to detect stimuli.

A. SensesB. Nerve impulsesC. ReceptorsD. Olfactory cells

3.

Figure 1_________________ in the skin enable us to determine how rough a surface is.

A. Pressure receptorsB. Touch receptorsC. Sweat glandsD. Erector muscles

4. Most receptors in the skin lie in the

A. dermis B. epidermis C. sebaceous gland D. fatty layer

5. Which of these areas of the skin has the most number of receptors?

A. FingertipsB. CheekC. Back of the handD. Elbow

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6. Which of the following best describe the vertebrates?

A. They are very complex organismsB. They are very simple organismsC. They have backbonesD. They are flowering plants

7. Which animal has fertilization that takes place inside the body?

A. Newts B. Sharks C. Tods D. Pigeons

8.

Figure 2

Which of the following statement is true about the flowering plants?

A. Plants that can produce flowers B. Plants that can grow rapidly C. Plants that do not bear flower D. Plants do not have true leave

9. The sense of sight enables us to gather all these information except

A. shape of objectsB. colour of objectsC. position of objectsD. temperature of objects

10. Which of these is the characteristic of the inner most layer of the eyeball?

A. Contains black pigment

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B. Made of strong musclesC. Has millions of photoreceptorsD. Transparent

11. Which of these parts protects the front of the eye?

A. EyelidB. ScleraC. ChoroidD. Eyebrow

12. shows nastic movement in response to touch.

A. Mimosa pudicaB. RafflesiaC. HydrillaD. Hibiscus

13. Which of these should be made the manipulated variable in an experiment to test the hypothesis above?

A. Position of lightB. The number of seedlingsC. The presence or absence of lightD. The presence or absence of water

14.

Figure 3

Which of these does not take place in the large intestine?

A. Reabsorption of water

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Shoots of plants grow towards light

B. Absorption of digested food C. Absorption of dissolved mineralsD. Break down of materials into vitamins by bacteria

15. Which of the following are present in faeces?

I. Undigested foodII. Mucus

III. Bacteria

A. I, II and IIIB. I and II onlyC. II and III onlyD. I only

16. helps to prevent constipation.

A. VitaminsB. MineralsC. FibreD. Fats

17. Which of these pairs is matched correctly?

A. Constipation – watery stoolB. Faeces – undigested material C. Diarrhoea – hard stool D. Defecation – removal of excrement

18. Too much can lead to high blood pressure.

A. sugarB. waterC. saltD. vitamin C

19. What is the cause of obesity?

A. Overeating B. High blood pressureC. Practicing crash dietD. Insufficient water in diet

20. are animals without backbones.

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A. InsectsB. VertebratesC. InvertebratesD. Mammals

21. We classify organisms into different groups according to their

A. similar characteristics onlyB. different characteristics onlyC. similar and different characteristicsD. life cycles

22. Today’s classification divides organisms into kingdoms.

A. twoB. threeC. fourD. five

23. A has leaves with parallel veins.

A. banyan treeB. coconut treeC. balsam plantD. rambutan tree

24. A fern is a

A. flowering plant B. non-flowering plant C. monocotyledonous plant D. dicotyledonous plant

Questions 25 and 26 are based on Figure 4.

Figure 4

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Animals

With scales Without scales

With moist scales

With dry scales With fur Without fur

(Animal R) (Animal S) (Animal T) (Animal U)

25. Which animals have no scales.

A. Animal R and SB. Animal S and TC. Animal T and UD. Animal U and R

26. Which of these animals may be grouped as animal U?

A. SalamanderB. CrocodileC. SalmonD. Beaver

27. What do an eagle and a rat have in common?

A. Both have furB. Both are without backbonesC. Both reproduce by laying eggsD. Both breathe with lungs

28. Which of these is a warm-blooded vertebrate?

A. PenguinB. Monitor lizardC. SharkD. Tree frog

29. We can help to maintain biodiversity by I. maintaining forest reserves

II. setting up animal sanctuariesIII. deforestation

A. I, II and IIIB. I and II onlyC. II and III onlyD. I only

30. Which of the following is not the habitat of rats?

A. PondB. Paddy field C. Palm oil plantationD. Bushes

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31. A ________________ is made up of many different populations living together in the same area.

A. habitatB. speciesC. communityD. ecosystem

32. A system in which organisms interact with the non-living part of their environment is called the

A. ecosystemB. habitatC. community D. population

33. What is ecology?

A. The study of relationship between living things and their environment.B. The environment that is made up lots of different ecosystem.C. The whole populations in an ecosystem.D. The variety of different species in an ecosystem.

34.

Figure 5

Which of the following statement about the tropical rain forest ecosystem is incorrect?

A. Tropical rain forests are found in the tropics, close to the equator.B. Tropical rain forests have year-round warm temperatures, strong sunlight

and abundant rainfall.C. Tropical rain forests contain the greatest diversity of living organisms.D. The floors of the rain forest are bright and cover by herbs.

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35. A predator

A. makes it own foodB. obtains food from a living hostC. feeds on dead living thingsD. kills and eats other organisms

36. Organisms that recycle minerals back into the ecosystem are

A. producersB. decomposersC. consumersD. competitors

37. Which of the following words best describes the relationship between the remora and shark?

A. CompetitionB. CommensalismsC. MutualismD. Parasitism

38. The diagram shows some stages in photosynthesis.

What are substance X, Y, W and V?

X Y W V

ACarbon dioxide

Water Glucose Oxygen

B WaterCarbon dioxide

Glucose Oxygen

C Oxygen Glucose Water Carbon dioxideD Oxygen Water Glucose Carbon dioxide

39. Which level of the pyramid of numbers has the most available energy?

A. First

Substance X absorbed from atmosphere

Substance V released to atmosphere

Substance W manufactured

in leafSubstance Y absorbed from soil

+

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B. SecondC. ThirdD. Fourth

40.

A rabbit can be classified as a

A. Producer B. Decomposer C. Primary consumer D. Tertiary consumer

- GOOD LUCK -

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