FORM FOUR BIOLOGY TOPICAL QUESTIONS WITH ANSWERS
CHAPTER : 1  GROWTH
1

Which of the following parts allow water to enter into the seed before germination?

  1. Testa 
  2. Plumule 
  3. Radicle
  4. Cotyledon 
  5. Micropyle
Choose Answer :


2

 Which one is the feature of aging in human beings?

  1. Shorter reaction times 
  2. Strong bones
  3. Strong muscles                       
  4. Body increases in size
  5. Wrinkling of the skin
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3

Mitosis normally takes place in

  1.  reproductive cells
  2.  animal cells only 
  3.  blood plasma 
  4.  plant cells only
  5.  somatic cells.      
Choose Answer :


4

The regions of most active growth in plants are found mainly in the

  1.  axillary buds and flowered
  2.  stems and leaves
  3.  stems and root hairs
  4.  leaves and flowers
  5.  stem and root apices
Choose Answer :


5

 A rapid growth in plants is mainly taking place in

  1. leaves 
  2. cambium
  3. roots
  4. shoots and root tips 
  5. stem. 
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6

Which of the following set of conditions is necessary for seed germination?

  1. Temperature, soil and water
  2. Water and carbon dioxide
  3. Water, temperature and oxygen
  4. Water, temperature and food
  5. Soil, oxygen and water
Choose Answer :


7

At early stages of development of the human zygote which organ develops first?

  1.  Liver
  2.  Heart
  3.  Kidney
  4.  Eyes
  5.  Notochord
Choose Answer :


8

Which of the following hormones stimulates seed germination in plants?

  1. Gibberellins 
  2. Auxin 
  3. Cytokinins 
  4. Abscisic acid 
  5. Ethene.         
Choose Answer :


9

Describe the stages of human post-natal growth and development.

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10

What do you understand by a term "primary growth" in plants?

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11

Match the phrases in List   with the responses in List B by writing the letter of the correct response from List B beside the item number of List A in your answer booklet.

LIST A LIST B
  1. A stage of growth in humans, characterised by rapid growth and a lot of physical and mental changes.

  2. A type of seed germination whereby cotyledons are pushed above the ground.

  3. The ability of seeds to germinate

  4. The region of most active growth in plants.

  5. A type of seed germination whereby cotyledons remain beneath in the ground.

  6. A pore which allows water into a seed during germination.

  7. Inability of a seed to germinate.

  8. Prevents a viable seed from germinating.

  9. A stage of family formation and parenthood in growth and development.

  10. A type of cell division whereby the number of chromosomes is maintained from parent cell to daughter cell.


  1. Meiosis

  2. Metamorphisis

  3. Radicle

  4. Plumule

  5. Hypogeal germination

  6. Adulthood

  7. Dormancy

  8. Epigeal germination

  9. Adolescent

  10. Cotyledon

  11. Mitosis

  12. Micropyle

  13. Hard seed coat

  14. Stem and root apices

  15. Viability

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12

Define the following terms:

  1. Meiosis

  2. Mitosis

  3. Growth

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13

(i) Explain the significance of mitosis in growth

(ii) State three factors affecting growth in humans.

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14

State the conditions necessary for seed germination and briefly describe how they facilitate germination.

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15

Differentiate epigeal germination from hypogeal germination.

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16

Define the following terms:

  1. Growth

  2. Intercalary growth

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17

Briefly explain three factors that affect growth and development in humans.

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18

Match the responses in List B with the phrases in List A by writing the letter of the correct response beside the item number

LIST A LIST B

  1. A chemical breakdown of a substance involving addition of water

  2. Double strand structure with base pairs

  3. The vascular tissue which transports organic solutes in plants

  4. Secondary sexual characteristics in man

  5. Female circumcision

  6. Major cause of natural selection

  7. May develop from a single fertilized egg

  8. Allows nodding of the head

  9. Similar structures due to common ancestry

  10. Pressure of the cell contents against the cell wall


  1. Veins

  2. DNA

  3. Multiple pregnancy

  4. Genital mutilation

  5. Condensation

  6. Mutation

  7. Adulthood

  8. Joint

  9. Wall pressure

  10. Pelvic damage

  11. Hereditary unit

  12. Phloem

  13. Development of beard

  14. Identical twins

  15. Homology

  16. Turgor pressure

  17. Nucleotide

  18. Hydrolysis

  19. Axis

  20. Analogy


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19

Briefly explain three significances of mitosis in living organisms.

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