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BIOLOGY (Objective Questions And Answers)


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THEORY QUESTIONS
WAEC SYLLABUS

WASSCE 2016

Objectives



​1. An example of an organism that exists as a colony is.

A. Paramecium

B. Euglena

C. Volvox.

D.


2. Gymnosperm bears naked seeds because they lack.

A. Ovary

B. Colorful flowers

C. Pollen gains

D. Stigma.


3. DNA formation is associated with.

A. Golgi bodies

B. Iysosomes

C. Mitochondria

D. Nucleus.


Plant A was seen to appear as plant B after seven hours, study the diagram carefully and answer question 4 and 5.





4. The term that can be used to describe what happened to plant A after seven hours is.

A. Wilting

B. Competition

C. Transpiration

D. Osmosis.


5. The environmental factors responsible for the condition in Plant B are

A. Low humidity and low temperature

B. High humidity and low temperature

C. Low humidity and high temperature

D. High humidity and high temperature.


ANSWERS

6. Hydra is considered to be at a tissue level of organization of life because it

A. Have numerous cells that perform different function.

B. Has developed organs and systems

C. Has poorly developed nervous system

D. Reproduces by budding.


Study the diagram below and answer question 7 and 8





7. Which of the following statements about the diagrams is correct?

A. They are both organs

B. One of them is an organism

C. They both form part of tissue

D. They are both harmful to humans.


8. A decrease in the number of II will result in.

A. An increase in urine production

B. An increase in energy production

C. A decrease population D. Decrease immunity.


9. Flaccidity in plans is associated with.

A. Cessation of photosynthesis

B. Wilting

C. Turgidity

D. Discoloration.


10. Which of the following substance is not usually present in the urine of health person?

A. Urea

B. Mineral salts

C. Glucose

D. Water.


ANSWERS

​11. Muscles act in opposite directions in order to.

A. Cause a bone to remove

B. Prevent dislocation at joints

C. Prevent muscle fatigue

D. Regulate bodily activities.


12. Lateral meristem in flowering plants is found in the.

A. Cortex

B. Pericycle

C. Cambium

D. Pith.


13. The cells and tissues of the bones, throat, cheat diaphragm and lungs form the.

A. Circulatory system

B. Respiratory system

C. Transport system

D. Digestive system.


14. The exchange of gases between the environment and the respiratory organs of vertebrates is referred to as.

A. Inhalation

B. Respiration

C. Expiration

D. Breathing.


15. The maintenance of a constant internal environment in an organism is known as.

A. Homeostasis

B. Homoeothermic

C. Dieresis

D. Dialysis.


ANSWERS

16. Which of the following organs is responsible for the production of insulin?

A. Spleen

B. Adrenal gland

C. Thyroid gland

D. Pancreas.


17. Which of the following action is not a voluntary action/

A. Stealing

B. Sneezing

C. Fighting

D. Cheating.


18. In both dicotyledonous and monocotyledonous plants, the root hairs originate from the.

A. Piliferous layer

B. Epidermal layer

C. Endodermal layer

D. Cortical layer.


19. Which of the following parts of ear does not contain endolymph?

A. Semi-circular canals

B. Utriculus

C. Tympanum

D. Sacculus.





20. The type of placentation illustrated ted in the diagram above is:

A. Marginal

B. Parietal

C. Axile

D. Basal.


ANSWERS

​The steps below are involved in the testing of a leaf for starch. Study them carefully and answer questions 21 and 22.

I. Decolorize leaf II. Dip decolorized leaf in warm water

III. Place leaf in boiling water IV. Add iodine solution.


21. The correct order for the test is.

A. I, II, III and IV

B. I, III, II and IV

C. II, III, I and IV

D. III, I, II and IV.


22. The best time to pluck the leaf for the experiment is.

A. After exposed to sunlight

B. Three hour after sunset

C. Before sunrise

D. Six hour after sunset.


23. In which of the plant tissues are guard cells located?

A. Epidermis

B. MesophyII

C. Vascular bundles

D. Meristems.


24. The association between two organisms in which one of the organism gains and the other losses is referred to as.

A. Saprophytism

B. Commensalism

C. Mutualism

D. Parasitism.


25. The function of the Villi in the alimentary canal is to.

A. Secrete gastric juice

B. Curdle milk

C. Emulsify fat

D. Increase the surface area for absorption.


ANSWERS

26. Which of the following structures is not an organ of the digestive system?

A. Oesophagus

B. Pancreas

C. Stomach

D. Kidney.


The diagram below shows the effect of nitrate on water bodies. Study it carefully and answer questions 27 to 29





27. The source of nitrates in the part labeled I is the.

A. Root Nodules Of Legumes

B. Cloud

C. Fertilizer

D. Organic Mater.


28. The phenomenon in the diagram is termed.

A. Denitrification

B. Conservation

C. Eutrophication

D. Global warming.


29. Another cause that cloud lead to phenomenon in the diagram is.

A. Exhaust from cars

B. Oil spillage

C. Dumping of sewage

D. Excess rainfall.


30. In ecology, a community refers to.

A. number of individuals of a given species

B. Group of different organisms living in a habitat

C. Existing species in an abandoned farmland

D. The dominant species in the habitat.


ANSWERS

​31. The direction of wind is determined by.

A. An anemometer

B. A secchi disc

C. A wind vane

D. A barometer.


32. Food webs are complex because.

A. The number of producers are large

B. Many animals feed directly on producers

C. They include primary, secondary and tertiary consumers

D. Some animals form part of several food chains.


33. Special modifications which an organism to survive in its habitat is known as.

A. Adaptation

B. Tolerance

C. Mimicry

D. Coloration


34. Which of the following relationships does not involves two organisms?

A. Commensalism

B. Saprophytism

C. Symbiosis

D. Parasitism


35. Overcrowding in a population does not result in.

A. Death

B. Commensalism

C. Competition

D. Migration


ANSWERS

36. A pandemic is an outbreak of diseases that.

A. Is confined to a town

B. Is widespread

C. Will not spread

D. Has limited spread.


37. The rational and prudent used of natural resources is known as.

A. Preservation

B. Conservation

C. Utilization

D. Management


38. Which of the following natural resource cannot be conserved?

A. Soil

B. Water

C. Wildlife

D. Air


39. Which of the following actions support conservation?

A. Protect endangered species

B. Preserve trees for timber

C. Permit hunting activities

D. Provide income for the government


40. A noticeable physical appearance of individual of the same species is called.

A. Physical variation

B.Physiological variation

C. Morphological variation

D. Discontinuous variation


ANSWERS

​41. A blend if inherited and acquired characteristic shows.

A. Variation

B. Inheritance

C. Evolution

D. Heredity


42. A cross between two parents produced four offspring with blood groups AB, BB, BO and AQ. What is the blood group of their parents?

A. AA and BO

B. BB and AO

C. AB and BO

D. AB and AO


43. A sick baby was successfully transfused with blood from the father who has blood group AB: What is the group of the sick baby?

A. A

B. B

C. AB

D. O


The illustration below represents a cross between a color-blind male and a normal female. Study it carefully and answer questions 44 and 45





44.What is the genotypic ratio of carrier female to normal males in the cross?

A. 1:1

B. 2:3

C. 3:4

D. 4:1


45.Which of the genotypes are carriers of color blindness?

A. I and II only

B. I and II only

C. II and III only

D. I, II and III only


ANSWERS

46.Scientist who study genetics are known as.

A. Genealogists

B. Geneticists

C. Medalists

D. Gene-scientists.


47.Which of the following scientist did not contribute to the development of genetics?

A. Wilhelm Johnson

B. Thomas Morgan

C. Gregory Mendel

D. Felix Durjadin


48.Which of the following terms is associated with natural selection?

A. Adaptive radiation

B. Differential reproduction

C. Population variability

D. Survival of the fittest.


49,In which of the following insects is group not displayed?

A. Soldier ants

B. Cockroaches

C. Honeybees

D. Termites


50.The inability of an organism to adapt to its habitant can lead to.

A. Dormancy

B. Adaptation

C. extinction

D. Survival



WASSCE JUNE 2016 BIOLOGY OBJECTIVE TEST

ANSWERS

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

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

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

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

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


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