JAMB 2022: Biology Mock Questions and Answers

Biology JAMB Mock Questions and Answers 2022

1.Swim bladder in fishes can be used for………..?

2.Communication in termites is through……….?
a.touch
b.touch and smell
c.touch and sound
d.smell and sound

3.a feature of an animal that lives in a cold region is
a.small ear and small feet
b.presence of scarce hairs
c.small body size

4.the mode of nutrition of ascaris lumbricoides in the human small intestine ……………? Ans=parasitism

5.creepers and climbers dwell in the
a.low layers
b.middle layer
c.top layer

6.In a DNA ,thymine base always pair with ans=adenine

7.The diagram above shows the diagram of [ I chose a complete flower because from the diagram it had the four floral parts]

8.In the diagram in question 7,IV represents [ans=receptacle]

9.A characteristic of an open circulatory system is the presence of Haemocoel

10.grass–grasshoppertoad
What trophic level does the toad belong to
a.1
b.2
c.3
d.4

11.bloood is brought back into the heart from the lungs by
ans=pulmonary vein

12.difference in the heart sructures of fishes,man,toad,goat,reptile is an evidence of evolution for
ans comparative anatomy

13. the mode of nutrition exhibited by Rhizopus is
ans=saprophytic

14. diagram of the room of a dicot plant stem, III in the diagram is used for [I chose it is use for transport of mineral salts and water]

15.in the diagram in question 14, II is the [ I chose phloem because it surrounded the structure iii(xylem)]

16.the roots hairs of plants are produced by the [ans=piliferous layers]

18.the bone in the elbow of man is what type of joint[ans =hinge joint]

19.the ABO blood group can be identified by the substance present on their [I chose red blood cell]

20.an example of a discontinuous variation is the …………? Ans=blood group system

21. the white mangrove plants adapt to their environment by the possession of……..? ans:breathing roots

22. thich bark of a forest is a feature for
A.protecting them against animals
b.consevation of water
these are the two options I can recollect

23. a feature of the bryophyte is
a.sporophyte is the dominant stage
b the sporophyte stage is independent on the bryophyte stage
c the gametophyte stage is independent on the sporophyte stage

24.C6H1206-X+CO2+ENERGY .X is
a.H2O
B.C2H5OH
C…..
D……

26.The evolution of similar organisms from different ancestral specie is termed[ans=convergent evolution]

27.a characteristic of epiphytes is that……[ans=I chose they have cup-shaped leaf for collecting water]

28.in epigeal germiunation,…….ans=hypocotyl grows above the soil

29which is true about blood group O……[Ans=they have both antibody A and B]

30.Production of interferon using a genetically engineered bacteria is now[ans =cheaper and faster,reference to answer,modern biology pg 567 biotechnology,previous edition]

31.Myopic conditions can be corrected by…[ans=concave lens]

32.water pollution can be reduced by…

33.the function of chloroplast in a plant cell is…[ans=photosynthesis]

34. both animal and plant cell possess….?

35. What does animal and plant cells have in common
A. Central vacuole b Chloroplast c. Cell membrane d. Cell wall
Factors that determine individual blood group is located?
A. White blood cells B. Red blood cells C. the plasma. D. Platelets
Possession of swim bladder by fish is one of the adaptation for_____

36. Which of these is a discontinous variation
A. Height
B. Skin color
C. Blood group

Ans – C

37. A diagramatic sketch of the transverse section of the supporting tissues of a plant. We are asked to identify the phloem and state the function of the xylem

38. A diagram of a flower and we were asked what it was
A. Complete
B. Incomplete
C. Staminate

39. We were also asked to identify the receptacle

40. A food chain and we were asked to identify the trophic level of the secondary consumer

41. What is the best adaptation for an orga ism on a cold region
A. Small hairs and feet
B. Small body
C. Little hairs on the body

42. In the DNA what does Thymine bind to?

43. I can’t remember exactly how, but we were asked about how embryology and comparative anatomy could be used to explain evolution

44. Antibodies in blood group O

45. Difference between epigeal and hypogeal germination in terms of hypocotyl

46. What enzyme is used to convert glucose to ethanol, CO² and energy
Ans – Zymase

47. One of the main factors affecting the abiotic part of the ecosystem is?
Answer- Rainfall

48. The possession of swim bladder in fish is used for?

49. which of the following is a producer in a successional environment
Answer- Grasses

50. The adaptation of white mangrove in a salty water marsh/habitat is ?

51. The thick bark of trees in the savannah is to enable?
Answer- Loss of water

52. What level contains the creepers and climbing plants in a tropical rainforest?
Answer- Lower level

53. which of the following is present in an open circulatory system
Answer- Haemocoels

54. The adaptation of epiphytes to their surroundings include?
Answer- Leaves reduced to spines

55. (Drawing of a dicotyledonous stem)
the part labelled IV indicates ?
answer- Xylem

56. (Same drawing of dictotyledonous stem) The function of the part labelled IV includes? Answer- Conducting water and dissolved mineral salts

57. The root hairs emerge from what layer of the root?
Answer- Epidermis

58. The difference occurring in different originations of similar species indicate?
Answer- Divergent evolution

59. (Drawing of a flower) The part labelled VI is ?
Answer- The receptacle

60. Glucose + Oxygen —– X + Co2 + Energy … what is X ?
Answer – Water

61. The washing of chemicals and fertilizers into the soil could lead to ?
Answer- Reduction of aquatic life

READ: JAMB 2022: Chemistry Mock Questions and Answers

Biology Mock Questions and Answers for JAMB 2021

1. Which of the following is known as the emergency hormone
Answer: Adrenaline

2. Which of the following reduces competition among members of a species?
Answer: Different Ecological Niche of the adult and Larva of the species

3. What develops into the seed of a flowering plant?
Answer: Ovule

4. Which of these is evidence of the modern theory of evolution?
a) Fossil records b) Genetics c) Comparative Anatomy
Answer:

5. The theory that giraffes will develop long neck was postulated by ?
Answer: Lamarck

6. Which of the following is an example of Morphological variation?
Answer: Skin colour

7. Which of these Insects have boring mouth part?
Answer: Aphid

8. Desert can be found in which of these Nigerian states?
Answer: Plateau

9. Which of these animals use stinging as a defence?
a) Praying mantis b) Porcupine
Answer:

10. Which blood group is known as the universal recipient?
Answer: AB

11. The spinal cord is protected by…………………?
Answer: Vertebrae

12. ……………. converts nitrites to nitrates
Answer: Nitrobacter (However this wasn’t in the options… There was Nitrosomonas and Azotobacter )

13. Animals found on the treetop are called?
Answer: Arboreal animals

14. …………… is when a harmless organism appears to be a harmful organism?
Answer: Mimicry

15. The outermost part of the tooth is?
Answer: Ename

16. Plants possessing pneumatophores grown in…………..?
Answer: Mangrove

17. An apple is a …………. type of fruit?
Answer: Pome

18. At what stage of mitotic division does the chromosome lie along the equator?
a) metaphase b) telophase c) anaphase d) prophase
Answer:

19. Poor growth, reddish colouration, are visible in plants lacking?
a) Nitrogen b) Phosphorus c) Calcium

20. In the stem of plants, what is responsible for gaseous exchange?
a) Lenticel b) Stomata c) Guard cell

21. Which of the following carry deoxygenated blood?
a) Pulmonary artery b) coronary artery.. c) & d) are two other names of arteries
Answer: Pulmonary artery

22. Diagram of the Flame Cell in the Planaria.

23. Diagram of an animal cell. – Identify Mitochondria and Rough Endoplasmic Reticulum

24. If a man with blood group O marries a woman with blood group AB, what are the possible blood groups of their children?
a)O and B b) O and A c) A and B d) AB and O
Answer:

25. Mychorrihza exhibits what type of association
A.commensalism
B.mutualism
C.parasitism
D.saprophytism
Answer: mutualism

26. The blue-green algae belong to which class
A. thallophyta.B man-fluidatophyta c. monera d. protista
Answer: Monera

27. The outermost part of mammalian teeth is?
Answer: Enamel

28.  which of the following is is the female s*x cell?
Answer: for “Animals is OVUM” while that for “Plants is EGG CELL”

29. Which of the following plant kingdoms does sori belong
A.Bryophyta
B.Thallophyta
C.man-fluidatophyta
D.Pteridophyta

30. which of the following coverts Nitrite to nitrates
A. Anabena
B.Nitrosomonas
C.Azotobacter
D.clostridium

31. which of the following insects possess boring mouthpart
A.Butterfly
B.Aphid
C.Weevil
D.cockroach

32. Competition is reduced in housefly by
A.the adult laying fewer eggs
B.the majority of the played egg not hatched
C.little differentiation between larva and adult
D.Males not fertilizing majority of the eggs

33. Which phase of mitosis does the chromosomes lie at the equator

34. Evidence of evolution is believed to come from
A.Comparative anatomy
B.Comparative physiology
C.fossil records
D.genetic studies

35. Which of the following uses stinging as a means of defence
A.Wasps
B.snake
C.porcupine
D.prayingmantis

36. Pnuematophors is an adaptation of trees in

37. the type of association in mycorrhiza is

38. Blue-green algae belong to what kingdom

Meanwhile, there is a Free Online Quiz on the Likely questions to expect in the 2022 JAMB Text: “The Life Changer”.

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