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JAMB Biology Past Questions 2017

10 questions from the JAMB 2017 Biology paper, with answers and explanations. Tap "Show answer" under each one when you are ready.

JAMB 2017Question 1 · Animal Biology and Comparative Physiology
The flame cells are used for excretion in
  1. A.Fluke
  2. B.Nematode
  3. C.Bacteria
  4. D.Volvox
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Answer: A. Fluke

Flame cells are the excretory structures found in flukes (flatworms).

JAMB 2017Question 2 · Cell Biology and Biochemistry
What is the primary function of cofactors?
  1. A.To aid in enzyme function
  2. B.To synthesize enzymes
  3. C.To inhibit enzymes
  4. D.To break down old enzymes
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Answer: A. To aid in enzyme function

Cofactors assist enzymes in catalyzing reactions, aiding proper enzyme function.

JAMB 2017Question 3 · Cell Biology and Biochemistry
The common thing in plant and animal cell is
  1. A.chloroplast
  2. B.cell wall
  3. C.nucleus
  4. D.centrioles
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Answer: C. nucleus

The nucleus is a common structure found in both plant and animal cells.

JAMB 2017Question 4 · Ecology and Environment
The biome that is characterized with large herbivores, few and scattered fire resistant trees is
  1. A.savanna
  2. B.tropical rain forest
  3. C.montane forest
  4. D.desert
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Answer: A. savanna

Savanna biomes are characterized by large herbivores and sparse, fire-resistant trees among grassland.

JAMB 2017Question 5 · Ecology and Environment
Food chain refers to the feeding relationships between animals in a ______?
  1. A.Family
  2. B.phylum
  3. C.community
  4. D.group
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Answer: C. community

A food chain describes the feeding relationships between organisms within a community.

JAMB 2017Question 6 · Genetics and Evolution
Coloration of the eye is ______ variation
  1. A.physiological
  2. B.morphological
  3. C.adaptive
  4. D.recessive
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Answer: B. morphological

Eye colouration is an example of morphological variation.

JAMB 2017Question 7 · Genetics and Evolution
The difference in structure, morphological and behavior of plant and animal is called
  1. A.adaptation
  2. B.evolution
  3. C.variation
  4. D.succession
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Answer: C. variation

Variation refers to the differences in structure, morphology, and behaviour among individuals of plants and animals.

JAMB 2017Question 8 · Mammalian Physiology and Anatomy
The joint between the femur and tibia is known as ________?
  1. A.hinge joint
  2. B.ball-and-socket joint
  3. C.pivot joint
  4. D.gliding joint
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Answer: A. hinge joint

The knee joint, between the femur and tibia, is a hinge joint, allowing movement in one plane.

JAMB 2017Question 9 · Microbiology and Disease
The host of Taenia Solium is _________
  1. A.cow
  2. B.pig
  3. C.sheep
  4. D.dog
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Answer: B. pig

The pig is the intermediate host of Taenia solium (pork tapeworm).

JAMB 2017Question 10 · Plant Biology
When an ovary is placed on the receptacle above the other floral parts it is referred to as
  1. A.half inferior ovary
  2. B.superior ovary
  3. C.inferior ovary
  4. D.half superior ovary
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Answer: B. superior ovary

When the ovary sits above the point of attachment of other floral parts on the receptacle, it is described as a superior ovary.

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