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1. All living organisms carty out certain activities 6. which make them different from inanimate objects.

Which of the following lists shows three activities ofall living organisms?

(A) Movement, decay, synthesis (B) Respiration, nutrition, preservation (C) Exercise, irritability, metabolism (D) Reproduction, excretion, growth

2. Which ofthe following cell organelles makes proteins for the cell? 7.

(A) Nucleus (8) Ribosone (C) Mitochrondrion (D) Cell membrane

3. The initial energy ofa food chain comes from 8.

(A) the sun (B) the plant (C) chlorophyll (D) carbon dioxide

4. The function ofnitrifying bacteria is to convert

(A) nitrates to protein 9. (B) nitrites to nitrates (C) nitrogen gas to urea (D) nitrogen gas to nitrates

5. Night blindness is caused by a deficiency of

(A) vitamin A (B) vitaminB (C) vitaminC (D) vitaminD

Which of the following foods would MOST likely prevent constipation?

1. White bread II. Carrots

III. Water IV. Cabbage

(A) I and II only (B) III and IV only (C) II, III and IV only (D) 1, II, III and IV

Which ofthe following foods, when consllmed in excess, does NOT contribute to obesity?

(A) Milk (B) Protein (C) Roughage (D) Carbohydrate

Which ofthe following is a defin itive sign of malnutrition?

(A) Shiny hair (B) Albinism (C) Dwarfism (D) Overwieght

Which of the following fomlliae is used to determine body mass index (BMI)?

(A) Height Weight

(B) Height Weightl

(C) Hejght2 Weight

(D) HejvW Weight2

GO 0 TOTHENEXTPAGE 0125301O/SPEC2009

Ribcage Diaphragm • •.

(A) Moves up Flattens

(B) Moves down Curves upward

(C) Moves down and in Curves upward

(D) Moves up and out Does not move

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,..----11

• , :::c• , . . . .

:f­

It~m,.10 refers to the diagram below, showing 14. the arrangment of teeth in the upperjaw ofan adult human being.

III

IV

15. 10. Which of the following labelled parts shows

an incisor?

(A) I (B) II (C) III (D) IV

16.

11. In which part of the tooth are nerves found?

(A) Cement (B) Dentine (C) Enamel (D) Pulp cavity

12. An enzyme shows optimum activity at pH 2.5. In which part ofthe alimentary canal will this enzyme be MOST active?

•

(A) Ileum

(B) Mouth 17.

(C) Stomach

(D) Duodenum

13. What is the end product of the digestion of carbohydrate?

(A) Starch (B) Glucose (C) Glycerol (D) Amino acid

0125301 O/SPEC 2009

Which of the following are egested by the human body?

I. Faeces II. Products of metabolism

III. Undigested food materials

(A) I and II only (B) I and III only (C) II and III only (D) I, II and III

The trachea is lined with hair-like structures called

(A) cilia (B) cells (C) villi (D) flagella

Which of the following BEST describes what happens during exhalation?

•

Which ofthe following statements are true of aerobic respiration?

1. Produces a large amount of energy II. Carbon dioxide is always produced

III. Produces lactic acid

(A) I and II only (B) I and III only (C) II and III only (D) I, II and III

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43. How many chromosomes are present in the 48. Which of the following vectors transmits nucleus of a muscle cell in a baby born with dengue haemorrhagic fever? Down's Syndrome?

(A) Bat (A) 23 (B) Rat (B) 24 (C) Anopheles mosquito (C) 46 (D) Aedes aegypti mosquito (D) 47

49. Which of the following organisms causes 44. Two normal parents have an albino child. If malaria'?

'A' represents the norinal skin pigment and 'a' represents the albino condition. What may be (A) Virus the possible genotype of the parents? (B) Fungus

(C) Protozoan (A) aa x aa (D) Bacterium (B) Aa x Aa (C) AA x Aa (D) AA xAA 50. The correct sequence of the stages in the life

cycle of a mosquito is?

45. The World Health Organisation defines good (A) adult, egg, larva, pupa health to include (B) egg, pupa, larva, adult (C) larva, pupa, egg, adult (A) the absence of disease (D) pupa, adult, larva, egg (B) access to potable water

(C) Health Insurance coverage (D) physical, mental and social well-being

51. Anthony is vaccinated against a disease on Monday and the antibody concentration

46. Which of the following diseases may be increases rapidly. However, there is a gradual described as chronic? decrease in antibody concentration over the

next few days. What type of immllnity does (A) Oengue Anthony experience? (B) Cholera (C) Diabetes (A) Active (D) Typhoid (B) Passive artificial

(C) Active artificial (D) Naturally acquired

47. Which of the following signs or symptoms occur during an asthmatic attack?

52. type 1 diabetes is treated medically by (A) Wheezing, coughing, vorniting injections of (B) Shock, coughing, shortness ofbreath (C) Chest pains, bronchospasms, (A) insulin

vomiting (B) glucagon (0) Shortness of breath, wheezing, (C) thyroxine

bronchospasms (D) adrenaline

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0125301 O/SPEC 2009

CARIBBEAN EXAMINATIONS COUNCIL

SECONDARY EDUCATION CERTIFICATE E ATION

HUMAN ANI) SOCIALBIOLOGY

SPECIMEN PAPER2009

Item Q. Ke 1 0 2 B ,

3 A 4 B 5 A 6 C,

7 C 8 D,

"'i

9 B 10 A 11 D 12 C 13 B 14 B 15 A 16 C 17 A 18 B 19 D 20 C

.

21 B,

22 1) . .

23 C 24 A 25 D

. ,

26 A .

27 B 28 C 29 C ,

30 A

lli!!!.Q.

\.; 33 :4" 35 B 36 A 37 A 38 39 40 4 A 42 C 43 D 44 B 45 D 46 C 47 D 48 D 49 C 50 A 51 B 52 A 53 B 54 C 55 A 56 D 57 D 58 C 59 D 60 B