ensofts


Candle Light To The World


BACK TO EN-SCHOOLCERT

BIOLOGY (Objective Questions And Answers)


2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
more
THEORY QUESTIONS
WAEC SYLLABUS

WASSCE 2015

Objectives



1. Which of the following organisms is not a protozoan?

A. Ameoba

B. Ascaris

C. Plasmodium

D. Paramecium


2. The structure of the cell membrane is a

A. double layer and a double protein layer

B. middle bi-layer of protein with a lipid layer on either surface

C. middle bi-layer of lipid with a protein layer on either surface

D. protein layer with two inner lipid layers


3. Which of the following cells is a specialized cell?

A. Amoeba

B. Plasmodium

C. Guard cell

D. Meristematic cell


4. The following organisms have structures for movement except

A. Amoeba

B. Spirogyra

C. Volvox

D V. Paramecium


5. Which of the following statements about protoplasm of a cell is not correct? It.

A. is a gelatinous mass

B. consists of cytoplasm and nucleus

C. is the liquid part of the nucleus

D. contains cellular organelles


ANSWERS

6. When a spirogyra filament is placed in a concentrated salt solution for 30 minutes, the cell would become

A. plasmolysed

B. turgid

C. shortened

D. elongalted


The diagram below is an illustration of a crocodile. Use it to answer questions 7 and 8.





7. Which of the labelled parts enable the animal to stay under water most of the time?

A. I, IV and V

B. I, II and V

C. I, III and IV

D. Ill, IV and V


8. Two characteristic feature of the class to which the crocodile belongs are labelled

A. I and II

B. Ill and IV

C. II and IV

D. II and V


9. Water and salts are both lost from the human body in

A. breath and sweat

B. breath and urine

C. breath, urine and sweat

D. sweat and urine


10. Which of the following features could be used to determine the growth of a seedling

A. Number of flowers

B. Number of leaves

C. Length of flowers

D. Length of radical


The following diagrams show the sequence of events in early cell division. Study the diagrams and answer question 11




ANSWERS

​11. In which of the following cells is this division likely to take place?

A. Sperm cell

B. Blood cell

C. Muscle cell

D. Uterine cell


12. A plant that commonly undergoes vegetative propagation by means of leaves is

A. Hibiscus

B. Bryophylum

C. Crotalaria

D. Spirogyra


The diagram below illustrates a part of the mammalian. skeleton. Use it to answer questions 13 and 14.





13. The part of the mammalian skeleton illustrated in the diagram is the

A. atlas vertebrae

B. axis vertebrae

C. cervical vertebrae

D. thoracic vertebrae


14. The function of the part labelled I is to

A. provide support to the spinal cord

B. provide surface for attachment of the muscle

C. carry the spinal cord

D. articulate with adjacent vertebrae


15. Blood pressure is higher in the arteries as a result of

A. stress

B. contraction and relaxation

C. blockage in the arteries

D. pressure of valves


ANSWERS

16. A farmer who wants to keep seeds for three years before planting and wants to prevent them from sprouting uses

A. auxin

B. gibberellins

C. abscisin

D. cytokinins


17. A person had an accident that affected the skull but not the nose and later lost the sense of smell. The accident must have affected the

A. nose by extension

B. olfactory lobes of the brain

C. passage from the nose to the brain

D. part of the skull near the nose


18. Ability of the human eye to focus images accurately on the retina is called

A. astigmatism

B. myopia

C. adjustment

D. accommodation


19. Which of the following characteristic features is not associated with monocotyledonous plants?

A. Well differentiated sepals and petals

B. Presence of fibrous root system

C. Presence of narrow leaves

D. Floral parts are in multiples of three


20. The main difference between a seed and a fruit is that a fruit

A. is large while a seed is small

B. has two scars while a seed has one

C. is pigmented while a seed is not

D. can be dispersed by animals while a seed cannot


ANSWERS

​21. Which of the following processes removes carbon(IV)oxide from the atmosphere?

A. Burning fuels

B. Putrefaction

C. Photosynthesis

D. Respiration in plants


A student used the following steps in testing for a non-reducing sugar I. added Benedict's solution to the sugar solution II. added dilute hydrochloric acid to the sugar and boiled it III. added sodium hyroxide solution to the solution in II and boiled IV. added Benedict's solution to the cooled solution in III Use the information above to answer questions 22 to 24


22. Why did the student add the dilute hydrochloric acid to the sugar solution in step II? To

A. oxidize the sugar solution

B. hydrolyse the sugar solution

C. dry the sugar solution

D. increase the volume of the sugar solution


23. What is the importance of step II in the testing process? To

A. neutralize the sugar solution

B. soften the sugar solution

C. change the colour of the sugar solution

D. increase the acid content of the sugar solution


24. The colour change to be observed in step IV is

A. blue – black

B. black - red

C. purple

D. Violet


25. Which of the following organs of the alimentary canal is not correctly matched with its function?

A. Gall bladder - stores bile

B. Liver - stores glycogen

C. Appendix - releases enzymes

D. Teeth - grind food


ANSWERS

26. A person suffering from obstruction of the bile duct is advised not to eat fats and oil because.

A. bile digests fats and oil

B. fats and oil can only be absorbed when bile is absent.

C. bile emulsifies fats and oil

D. bile adds water to digesting food


27. A community reaches a climax when

A. only pioneer organisms are present

B. new habitats are constantly being formed

C. there is an introduction of new plants and animal species within the community

D. the-composition and size of a community remains constant over a long period


28. Which of the following components make up an ecosystem?

A. Decomposers, animals and non-living factors

B. Living and non-living factors

C. Plants and non-living factors

D. Plants, decomposers and non-living factors


29. The major problem experienced by organisms living in small water bodies is

A. drying up

B. oxygen deficiency

C. scarcity of food

D. wave action


30. The capillarity of a soil refers to

A. The particle size of soil

B. How easily water passes through soil

C. how well water rises up in soil

D. proportion of water a soil holds


ANSWERS

​31. An organisms at the start of a food chain which provides the total input of energy into an ecosystem is the

A. Sun

B. Producer

C. Consumer

D. Decomposer  


Study the diagram below and use it to answer questions 32 to 34





32. The mode of nutrition of the plant in the diagram is

A. Photosynthetic and chemosynthetic

B. Saprophytic and carnivorous

C. Photosynthetic and carnivorous

D. Chemosynthetic and saprophytic


33. The structure labelled I is

A. A pitcher

B. An onion

C. A flower

D. A tendril


34. In which type of soil is the plant found? Soil that is

A. Poorly Aerated

B. Water Logged

C. Exposed

D. Nitrogen deficient


35. Which of the following organisms is an endo-parasite

A. Tapeworm

B. Flea

C. Tick

D. Aphid


ANSWERS

36. Oil applied to the surface of water kills the larvae of mosquitoes through

A. Dehydration

B. Poisoning

C. Starvation

D. Suffocation


37. Which of the following natural resources is most readily available to all organisms?

A. Oil

B. Water

C. Air

D. Food


38. Which of the following resources is non-renewable?

A. Forest reserve

B. Mineral deposit

C. Water

D. Wild life


39. Soil erosion could be prevented by

A. Flooding a farmland

B. Cover-cropping

C. Deforestation

D. Leaving the soil bare


40. Which of the following statements about human blood groups is not true?

A. A is dominant over B

B. O is recessive

C. B is dominant over O

D. A and B are co-dominant


ANSWERS

​41. Which of the following traits is not inheritable? Ability to

A. Taste PTC

B. Roll the tongue

C. Move the ear

D. Roll the eyeball


42. A woman with blood group A gives birth to a child with blood group 0. Which of the following blood groups cannot belong to the father?

A. A

B. B

C. AB

D.O


43. How many chromosomes will be in a gamete if the normal cell has four chromosomes?

A. 2

B. 4

C. 6

D. 8


Use the diagram below to answer questions 44 and 45. Parents





44. Which of the following statements about the cross is correct?

A. The gene for the spotted coat is recessive to the gene for the black coat

B. Black coat and spotted coat are co-dominant

C. The gene for the spotted coat is dominant over the gene for the black coat

D. The genotype for the F, are homozygous dominant.




ANSWERS

46. According to Mendel's first law of inheritance, segregation genes occur when

A. tall plants are crossbred

B. short plants are crossbred

C. tall plants and short plants are crossbred

D. plants are crossbred


47. Which of the following statements about sex-linked character is not true?

A. They are usually borne on the X - chromosome

B. They are more common in males

C. Males are usually carriers

D. They are not usually carried on the Y chromosomes


In explaining the term camouflage, to a class, the diagran below showing four varieties, P, Q, R, and S of the same species of fish living amongst water plants in a river were used. Use the diagram to answer questions 48 to 50





48. Which of the varieties is likely to decrease most in number if a predatory fish is introduced into the river?

A. P

B. Q

C. R

D. S


49. Which of the varieties is most likely to outlive the others?

A. P

B. Q

C. R

D. S


50. The variety selected in question 49 will outlive the others because the

A. Variety is the most beautiful

B. Variety does not have markings

C. Markings of the variety are similar to those of the environment

D. predator does not like eating the variety



WASSCE JUNE 2015 BIOLOGY OBJECTIVE TEST

ANSWERS

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

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

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

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

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


To Top
Q 1-10
Q 11-20
Q 21-30
Q 31-40
Q 41-50
To 2014
To 2016
To En-Schoolcert

copyright:ensoft2024. company@en-soft.com Phone:2347072716127