WASSCE 2019

Objectives



​1. Which of the following structure will not be found in the Uncleus of a cell?

A. DNA

B. Nucleolus

C. Lysosome

D. Centriole


2. All example of organ level of organization is?

A. Bird

B. Kidney

C. Spermatozoon

D. Xylem


3. A structural similarity between Paramecium and Amoeba id the presence of?

A. One food vacuole

B. Two contractile Vacuoles

C. Two Nuclei

D. One gullet


4. The classes of plants the root systems in diagram 1 and 2 below represent respectively are?





A. Dicotyledonous and Monocotyledonous

B. Monocotyledonous and Dicotyledonous

C. Dicotyledonous and Dicotyledonous

D. Monocotyledonous and Monocotyledonous


The diagram below is an illustration of a stage in a biological process: Study it and answer question 5 and 6





5. What Stage of cell division is illustrated in the diagram?

A. Prophase

B. Metaphase

C. Anaphase

D. Telophase



6. The part labeled I is the?

A. Centromere

B. Spindle fibre

C. Centriole

D. Chiasmata


7. The rate of diffusion of Molecules between Two media will be higher if.

A. The different in concentration of the two media is low

B. The different in concentration of the two media is negligible

C. The different in concentration of the two media is high

D. The different in concentration of the two media


8. Anaerobic respiration in the organism illustrated in the diagram below produces carbon dioxide and





A. Ethanol

B. Water

C. Oxygen

D. Glucose


9. Underground storage stems which grow horizontally in the soil are

A. Bulbs

B. Runners

C. Rhizomes

D. Corms


10. Muscle fatigue in the body of an athlete is due to

A. Low pH

B. High Oxygen content

C. Accumulation of Lactis acid

D. Accumulation of carbonic acid



11. The heart can beat continuously without being fatigued because it is composed of.

A. Skeletal muscles

B. Smooth muscles

C. Cardiac muscles

D. Renal muscles


12. The products of tissue respiration are

A. Glucose, Oxygen and water

B. Oxygen, Water and Energy

C. Glucose, Carbon dioxide and Energy

D. Water, carbon dioxide and Energy


13. Excretory products in plants responsible for the discoloration of flowers are called.

A. Alkaloids

B. Tannins

C. Anthocyanins

D. Resins


14. The process of maintaining a steady internal environment is known as

A. Osmoregulation

B. Equilibration

C. Homeostasis

D. Plasmolysis


15. Which of the following stamen is not true about hormones?

A. Their respiration are voluntary

B. They may affect more than one target organ

C. They are chemical messenger in animals

D. They are transported by the blood to the target organs


The diagram below is an illustration of human brain. Study it and answer question 16 and 17





16. The part labeled 1 is the

A. Olfactory lobe

B. Cerebellum

C. Cerebrum

D. Medulla oblongata


17. The function of the part labeled II is that it controls

A. Posture and balance of body

B. All involuntary actions

C. Temperature and appetite

D. Many involuntary action


18. To focus on a distant object, the culinary muscle if the eye

A. Contracts and the eye lens get thicker

B. Relaxes and the eye lens thinner

C. Contracts and the eye lens get thinner

D. Relaxes and the eye lens gets thicker


19. The main function of the amniotic fluid is for.

A. Respiration in the fetus

B. Protection of the fetus to shock

C. Lubricating the birth canal

D. Nourishing the fetus


The diagram below is an illustration of the longitudinal section of flower. Study it and answer question 20 and 21





20. Which part of the flower is responsible for the protection of young flower bubs?

A. I

B. II

C. III

D. IV



21. The essential parts of the flower are labeled

A. I, II and III

B. II, III and V

C. III, V and V

D. IV, V and VI


22. Deficiency in insulin could lead to

A. Cirrhosis

B. Hepatitis

C. Diabetes

D. Nephritis


23. Which of the following from of energy is utilized during photosynthesis?

A. Potential

B. Kinetic

C. Solar

D. Chemical


24. Light is excluded from a water culture experiment in order to.

A. Prevent overheating of the roots

B. Enable the roots to grow straight down

C. Prevent ionization of water molecules

D. Prevent the growth of algae


25. The major mineral present in the shell of Molluses is

A. Copper

B. Sodium

C. Iron

D. Calcium



26. The digestion of proteins start in the

A. Small intestine

B. Stomach

C. Large intestine

D. Mouth


27. Tooth decay is usually caused by?

A. Undigested food

B. Eating limited amount of sweetened food

C. The bacteria in the mouth that metabolize sugar to acids

D. Eating a lot of Portentous food


28. The conversion of ammonium salts into nitrates is called

A. Putrefaction

B. Gentrification

C. Fixation

D. Nitrification


29. The salinity of a brackish habitat

A. Increase immediately after rainfall

B. Increase at the end of the rainy season

C. Decrease within increase of organisms

D. Increase during the dry season


30. If 90 ants are found in a field with a total area of 100m, what is the population density of the ants?

A. 0.09

B. 0.9

C. 9.00

D. 90.00



31. The complex relationship between the members of a community and their physical environment is known as it

A. commensalism

B. Symbolism

C. Saprophytism

D. Ecology


32. The specific roles of a species within is environment is known as

A. Habitat

B. Niche

C. Tropic Level

D. Biotic community


33. Which of the following sol fertility improvement will have the most negative effect on ecosystem if not controlled?

A. Application of N-P-K fertilizer

B. Shifting cultivation

C. Mixed farming

D. Crop rotation


34. Organisms in an ecosystem are usually group according to their tropic level into?

A. Canivoius and omnivous

B. Consumers and parasites

C. Producers and Saprophytes

D. Producers and consumers


35. In the pyramid of energy illustrated below, the organism with the least amount of transferred energy is?





A. Spirogyra

B. Tadpole

C. fish

D. Bird



36. Tall trees with unbranched trunks which grow above the upper storey of the forest are commonly referred to as?

A. Emergent’s.

B. Herbs

C. Lianes

D. Shrubs


37. Maize grants are best stored against insect attacks by

A. Keeping in a Silo

B. Storing in the room

C. Leaving them on their cobs

D. Covering with leaves


38. Cholera is mostly spread by?

A. Air

B. Soil

C. Water

D. Nose


39. Which of the following resource is renewable?

A. Petroleum

B. Coal

C. Iron

D. Trees


40. Which of the following roes is not performed by a government agency responsible for forest maintenance?

A. Regulation the harvest of timber and poaching

B. Creating, protecting and managing the forest reserve

C. Tracking the movement of timber, wood and wildlife

D. Regulating mining activities in the forest.



41. Which of the following factor is not a source of variation in living organism?

A. Environment

B. Inheritance

C. Mitosis

D. Meiosis


42. Individual with blood group AB can donate blood to individuals with blood group

A. A and B

B. A and O

C. A, B only

D. O only


The diagram below is an illustration of a process occurring in a living animal cell. Study it and answer question 43 and 44





43. The process occur in the?

A. Nucleus

B. Mitochondrion

C. Golgi body

D. Cytoplasm


44. The process is called?

A. Replication

B. Cell Maturation

C. Crossing over

D. Mutation


45. Which of the following Nucleotides is not found in the DNA molecule?

A. Adenine

B. Cytosine

C. guanine

D. Uralic



46. In a complete dominance monohybrid cross between a pure breeding yellow flowered plant Y and a pure breeding white flowered plant y the result of the first filial generation is.

A. 50% yellow flowers

B. 75% yellow flowers

C. All yellow flowers

D. All white flowers


47. A man whose blood group is heterozygous B is married to a woman whose blood is heterozygous B. Which of the following statement is Correct about the blood group of their offspring?

A. Three of them belong to blood group B

B. Three of them belong to blood group O

C. None of them belong to blood group O

D. Two of them belong to blood group O


48. The cross between Rr Tt and rrrr where R is a gane for red color And T for tallness will result in.

A. All the offspring being tall with red fruits

B. 25% tall with red fruits

C. 50% tall with red fruits

D. 75% tall with red fruits


49. The yellow and black stripes on the body of wasps is an example of.

A. Mimicry

B. Courtship behavior

C. Camouflage

D. Warning coloration


50. The biological important of the dance by the worker honeybee is that it.

A. Acts as a signals for matting

B. Serve as a warning signal

C. Signal the availability of food

D. Serve as a means of identifying members of the caste



WASSCE JUNE 2019 BIOLOGY OBJECTIVE TEST

ANSWERS

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

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

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

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

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