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BIOLOGY (Objective Questions And Answers)


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THEORY QUESTIONS
WAEC SYLLABUS

WASSCE 2017

Objectives



​1. Which of the following groups of animals do not possess a Nervous system?

A Ponfera

B. Cnidaria

C. Platyhelminthes

D. Nematoda


2. The structural similarities in Paramecium and Euglena are in the

A. shape of locomontory organs

B. blunt anterior and pointed posterior

C. presence of micro and mega nuclei in both

D. presence of anterior and posterior contractile vacuoles


3. Which of the following organisms cannot exist freely on its own?

A Chlamydomonas

B. Amoeba

C. Paramecium

D. Plasmodium


The diagram below is an illustration of an Arthropod . Study it and answer question.





4. The Arthropod in the diagram is not and insect because it

A. has a big head which is almost equal to the thorax

B. has eight legs and no wings

C. does not have visible eyes on its head

D. has head, thorax and abdomen


5. Which of the following cell organelles is the site for the production of ATP?

A. Lysosome

B. Nucleus

C. Mitochondrion

D. Ribosome


ANSWERS

6. An example of osmosis in plants is the

A. movement of water through the xylem

B. loss of water vapour from the stomata

C. translocation of food through the phloem

D. absorption of water from the soil by the root


7. The organism that can carrry out both autotrophic and heterotrophic modes of nutrition is

A. Chlamydomonas

B. Eudorina

C. Euglena

D. Spirogyra


The diagram below illustrates a part of the human skeleton. Study it and answer questions 8 to 10.





8. The diagram represents the bone of the

A. upper arm

B. lower arm

C. upper leg

D. lower leg


9. Which of the labelled parts articulates with the head of the trochlea to form a hinge joint?

A. I

B. ll

C. Ill

D. IV


10. The labelled part that provides surface for the attachment of the triceps is

A. I

B. ll

C. Ill

D. IV


ANSWERS

11. The diagram below illustrates the transverse section of a





A. dicotyledonous root

B. Monocotyledonous root

C. dicotyledonous stem

D. Monocotyledonous stem


12. Which of the following actions does not occur during exhalation in man

A. Thoracic cavity decreases in volume

B. Diaphragm flattens

C. Ribs move down and in

D. Air pressure increases in the thoracic cavity


The diagram below is an illustration of the urinary tubule in a mammal. Study if and answer questions 13 to 15.





13. Which of the following substances is found in the part lebelled II only?

A. Lipid

B. Protein

C. Salts

D. Water


14. The part which contains the lowest concentration f urea is labeled.

A. I

B. II

C. III

D. IV


15. Which of the following substances is greater in concentration in the part labeled IV when compared to that of the part labeled ?

A. Lipid

B. Glucose

C. Urea

D. Uric acid


ANSWERS

16. Deamination of amino acids in the liver

A. blood sugar

B. glycogen

C. bile

D. urea


17. Which of the following gland also serves as an exocrine gland?

A. Ovary

B. Pancreas

C. Adrenal

D. Thyroid


18. Which of the following sequence is the correct route of the transmission of impulses along a reflex arc?

A. Receptor sensory neurone synapse intermediate neurone synapse motor neurone effector

B. Receptor motor neurone synapse intermediate Neurone synapse sensory, neurone effector

C. Effector intermediate neurone synapse motor neurone synapse sensory neurone receptor

D. Effector motor neurone synapse sensory neurone synapse intermediate neurone receptor


19. When viewing an object that is close to the human eye, the

A. eye lens becomes thin

B. ciliary muscles relax

C. suspensory ligaments become taut

D. eye lens become fat


The diagram below is an illustration of the human sperm. Study it and answer questions 20 and 21.





20 The part labelled i is the

A. acrosome

B. nucleus

C. mitochondrion

D. tail


ANSWERS

21. The function of the part labelled II is to

A. fuse with the ovum during fertilization

B. generate the energy for the sperm to swim to the fallopian tube

C. help the sperm to swim forward

D. dissolve the membrance of the egg during fertilization


22. Which of the following types of placentation is not common amongst syncarpous pistils?

A. Marginal

B. Axile

C. Parietal

D. Free central


23. The complex energy-rich organic matter which living organisms need for life is

A. water

B. air

C. food

D. mineral salts


24. Which of the following processes are associated with photosynthesis? I. Energy from sunlight is absorbed II. Carbon dioxide is evolved III. Oxygen is given off D. Glucose is synthesized

A. I and II only

B. I, Hand IV only

C. I, III and IV only

D. I, II, III and IV


25. Which of the following functions is associated with calcium in plants? Formation of

A. cell wall

B. ribosomes

C. protains

D. cell membrane


The diagram below are illustrations of the dentition of an organism. Study them and answer questions 26 to 28.




ANSWERS

26. The dentition belongs to a

A. rabbit

B. cat

C. frog

D. man


27. he function of the teeth labelled X is for

A. biting and grasping

B. chewing and grinding

C. tearing and grasping

D. chewing and tearing


28. The teeth which are absent in the young of the organism are labeled.

A. W

B.X

C.Y

D. z


29. The number of individuals that the environment can support over a long period of time is its

A. growth rate

B. total capacity

C. population capacity

D. carrying capacity


30. A good site for secondary succession would be

A. a sand dune

B. a bare rock

C. a land that has just had forest fire

D. a stretch of barren land


ANSWERS

31. A population which exceeds its carrying and then collapses is represented graphically a.

A. bell-shaped curve

B. linear curve

C. sigmoid curve

D. skewed curve


32. The natural dwelling place f an organism is called its

A. ecological niche

B. habitat

C. population

D. environment


33. Which of the following ecological factors will result in food shortage?

A. Drought

B. Low rate of reproduction

C. Emigration

D. Topography


34. Soil permeability refers to

A. how easily water passes through the soil

B. the proportion of air in the soil

C. the proportion of water the soil holds

D. how well water rises up the soil


35. which of the following groups of organisms do not have members that can be called autotrophs?

A. Protists

B. Mosses

C. Chlorophyta

D. Fungi


ANSWERS

36. Which of the following pyramids gives the most accurate picture of the relationship between the organisms at the various trophic levels in a food chain? A pyramid of

A. numbers

B. energy

C. biomass

D. size


37. Which of the following statements is not associated with pyramids of energy?

A. Efficiency of energy transfer between trophic levels can be studied

B. Comparisons of pyramids for different ecosystems can be made

C. More accurate comparisons of trophic levels

D. Representation of numbers of organisms at different trophic levels


38. Which of the following materials is not easily biodegradable?

A. Polythene bag

B. Cotton bag

C. Hides and skin bag

D. Paper bag


39. Which of the following pairs of organisms is in a mutualistic relationship?

A. Hydra and Sea anemone

B. Hermit crab and Sea anemone

C. Dodder plant and Cocoa plant

D. Mistletoe and Kolanut


40. The establishment of game reserves and park is a method of

A. conserving natural resources

B. cultivating game

C. controlling pollution

D. cultural awareness


ANSWERS

41. Which of the following practices is not used in conserving water?

A. Afforestation

B. Damming

C. Deforestation

D. Reforestation


42. Which of the following resources cannot be renewed?

A. Air

B. Petroleum

C. Food crop

D. Soil


Use the diagram below to answer question 43.





43 The type of variation illustration above is

A. continuous variation -Tongue

B. discontinuous variation

C. morphological variation

D. environment variation


44. Which of the following characters is not a morphological variation?

A. Shape of the nose

B. Colour of skin

C. Colour of hair

D. Tongue rolling


45. An apple plant can produce sexually and asexually and it has 40 chromosomes in its leaf cells. How many chromosomes would be in each gamete and somatic cell?

A. 20 chromosomes in the gametes and 10 in the somatic cells

B. 40 chromosomes in the gametes and 20 in the somatic cells

C. 20 chromosomes in the gametes and 40 in the somatic cell

D. 40 chromosomes in the gametes and 40 in the somatic cells


ANSWERS

46. Assuming that A is the gene for normal skin colour and is dominant, while a is the gene for albinism and is recessive, what is the likely genotype of the couple which had 50% normal and 50% albino offspring?

A. AA, aa

B. Aa, aa

C. AA, Aa

D. Aa, Aa


47. Which of the following statements is true about mutation?

A. Phenotype is not involved

B. Genotype is not involved

C. Artificial induction is not possible

D. Genotype is involved


48. One of the structural adaptations of mammals for movement on land is the development of the

A. hollow bones

B. pentadactyl limb

C. fused thoracic bones

D. streamlined body


49. Which of the following traits is not characteristic of social insects?

A. All members and identical

B. There is division of labour

C. The members dwell in the same habitat

D. Some members protect the queen


50. The gradual cumulative, adaptive and heritable char, an organism over a long period of time resulting in n species is called

A. adaptation

B. survival

C. organic ea

D. inter specific competition



WASSCE JUNE 2017 BIOLOGY OBJECTIVE TEST

ANSWERS

1. A 2. A 3. D 4. B 5. C 6. C 7. C 8. B 9. B 10. C

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

21. C 22. A 23. C 24. C 25. A 26. D 27. C 28. D 29. D 30. C

31. A 32. B 33. A 34. A 35. D 36. A 37. D 38. A 39. B 40. A

41. C 42. B 43. B 44. D 45. C 46. B 47. D 48. B 49. A 50. C.


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