2016 WASSCE BIOLOGY PAPER 1 QUESTIONS AND ANSWERS.
2016 WASSCE BIOLOGY PAPER 1 QUESTIONS AND ANSWERS.
QUESTIONS
1. An example of an organism that exists as a colony is
A. Spirogyra
B. Paramecium
C. Euglena
D. Volvox
2. Gymnosperms bear naked seeds because they
A. ovary
B. colourful flowers
C. pollen grains
D. stigma
3. DNA formation is associated with
A. Golgi bodies
B. lysosomes
C. mitochondria
D. nucleus
Plant A was seen to appear as plant B after seven hours. Study the diagram carefully and answer questions 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
6. Hydra is considered to be at a tissue level of organization of life because it
A. has numerous cells that perform different functions
B. has developed organs and systems
C. has poorly developed nervous system
D. reproduces by budding
Study the diagrams 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 tissues
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 decreased population
D. decreased immunity
9. Flaccidity in plants is associated with
A. cessation of photosynthesis
B. wilting
C. turgidity
D. discolouration of leaves
10. Which of the following substances is not usually present in the urine of healthy person?
A. Urea
B. Mineral salts
C. Glucose
D. Water
11. Muscles act in opposite directions in order to
A. cause a bone to move
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 nose, throat, chest 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. homoiothermy
C. diuresis
D. dialysis
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 actions 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 the ear does not contain endolymph?
A. Semi-circular canals
B. Utriculus
C. Tympanum
D. Sacculus
20. The type of placentation illustrated in the diagram below is
A. marginal
B. parietal
C. axile
D. basal
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 being exposed to sunlight
B. three hours after sunset
C. before sunrise
D. six hours after sunset
23. In which of the plant tissues are guard cells located?
A. Epidermis
B. Mesophyll
C. Vascular
D. Meristems
24. The association between two organisms in which one of the organism gains and the other loses 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
26. Which of the structures is not an organ of the digestive system
A. Oesophagus
B. Pancreas
C. Stomach
D. Kidney
The diagram below shows the effect of nitrates on water bodies. Study it carefully and answer question 27 – 29 
27. The source of nitrates in the part labelled I is the
A. root nodules of legumes
B. cloud
C. fertilizers
D. organic matter
28. The phenomenon in the diagram is termed
A. denitrification
B. conservation
C. eutrophication
D. global warming
29. Another cause that could 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. a number of individuals of a given species
B. groups of different living in a habitat
C. existing species in an abandoned farmland
D. the dominant species in the habitat
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 enable an organism to survive in its habitat is known as
A. adaptation
B. tolerance
C. mimicry
D. colouration
34. Which of the following relationships does not involve two organism?
A. Commensalism
B. Saprophitism
C. Symbiotism
D. Parasitism
35. Overcrowding in a population does not result in
A. death
B. commensalism
C. competition
D. migration
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 use of natural resources is known as
A. preservation
B. conservation
C. utilization
D. management
38. Which of the following natural resources cannot be conserved?
A. Soil
B. Water
C. Wildlife
D. Air
39. Which of the following actions supports conservation? To
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 individuals of the same species is called
A. physical variation
B. physiological variation
C. morphological variation
D. discontinuous variation
41. A blend of inherited and acquired characteristics 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 AO. 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 blood group of the sick baby?
A. A
B. B
C. AB
D. O
The illustration below represents a cross between a colour-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 colour blindness?
A. I and II only
B. I and III only
C. Il and III only
D. l, II and III only
46. Scientists who study genetics are known as
A. genealogists
B. geneticists
C. mendelists
D. genescientists
47. Which of the following scientists did not contribute to the development of genetics?
A. Wilhem Johnson
B. Thomas Morgan
C. Gregor 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 instinct not displayed?
A. Soldier ants
B. Cockroaches
C. Honeybees
D. Termites
50. The inability of an organism to adapt to its habitat can lead to
A. dormancy
B. adaptation
C. extinction
D. survival
ANSWERS
1. D. Volvox
2. A. ovary
3. D. nucleus
4. A. wilting
5. C. low humidity and high temperature
6. A. has numerous cells that perform different functions
7. C. They both form part of tissues
8. D. decreased immunity
9. B. wilting
10. C. Glucose
11. A. cause a bone to move
12. C. cambium
13. B. respiratory system
14. D. breathing
15. A. homeostasis
16. D. Pancreas
17. B. Sneezing
18. A. piliferous layer
19. C. Tympanum
20. D. basal
21. D. III, I, II, and IV
22. A. after being exposed to sunlight
23. A. Epidermis
24. D. parasitism
25. D. increase the surface area for absorption
26. D. Kidney
27.C. fertilizers
28. A. denitrification
29. C. dumping of sewage
30. B. groups of different living in a habitat
31. C. a wind vane
32. D. some animals form part of several food chains
33. A. adaptation
34. B. Saprophitism
35. B. commensalism
36. B. is widespread
37. B. conservation
38. D. Air
39. A. protect endangered species
40. C. morphological variation
41. A. variation
42. C. AB and BO
43. C. AB
44. A. 1:1
45. A. I and II only
46. B. geneticists
47. A. Wilhem Johnson
48. D. Survival of the fittest
49. B. Cockroaches
50. C. extinction
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