1 Which of the following parts allow water to enter into the seed before germination?
Testa Plumule Radicle Cotyledon Micropyle Choose Answer :
- -
A
B
C
D
E
2 Which one is the feature of aging in human beings?
Shorter reaction times Strong bones Strong muscles Body increases in size Wrinkling of the skin Choose Answer :
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A
B
C
D
E
3 Mitosis normally takes place in
reproductive cells animal cells only blood plasma plant cells only somatic cells. Choose Answer :
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A
B
C
D
E
4 The regions of most active growth in plants are found mainly in the
axillary buds and flowered stems and leaves stems and root hairs leaves and flowers stem and root apices Choose Answer :
- -
A
B
C
D
E
5 A rapid growth in plants is mainly taking place in
leaves cambium roots shoots and root tips stem. Choose Answer :
- -
A
B
C
D
E
6 Which of the following set of conditions is necessary for seed germination?
Temperature, soil and water Water and carbon dioxide Water, temperature and oxygen Water, temperature and food Soil, oxygen and water Choose Answer :
- -
A
B
C
D
E
7 At early stages of development of the human zygote which organ develops first?
Liver Heart Kidney Eyes Notochord Choose Answer :
- -
A
B
C
D
E
8 Which of the following hormones stimulates seed germination in plants?
Gibberellins Auxin Cytokinins Abscisic acid Ethene. Choose Answer :
- -
A
B
C
D
E
9 Describe the stages of human post-natal growth and development.
View Ans 10 What do you understand by a term "primary growth" in plants?
View Ans 11 Match the phrases in List A 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 A stage of growth in humans, characterised by rapid growth and a lot of physical and mental changes.
A type of seed germination whereby cotyledons are pushed above the ground.
The ability of seeds to germinate
The region of most active growth in plants.
A type of seed germination whereby cotyledons remain beneath in the ground.
A pore which allows water into a seed during germination.
Inability of a seed to germinate.
Prevents a viable seed from germinating.
A stage of family formation and parenthood in growth and development.
A type of cell division whereby the number of chromosomes is maintained from parent cell to daughter cell.
Meiosis
Metamorphisis
Radicle
Plumule
Hypogeal germination
Adulthood
Dormancy
Epigeal germination
Adolescent
Cotyledon
Mitosis
Micropyle
Hard seed coat
Stem and root apices
Viability
View Ans 12 Define the following terms:
Meiosis
Mitosis
Growth
View Ans 13 (i) Explain the significance of mitosis in growth
(ii) State three factors affecting growth in humans.
View Ans 14 State the conditions necessary for seed germination and briefly describe how they facilitate germination.
View Ans 15 Differentiate epigeal germination from hypogeal germination.
View Ans 16 Define the following terms:
Growth
Intercalary growth
View Ans 17 Briefly explain three factors that affect growth and development in humans.
View Ans 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 A chemical breakdown of a substance involving addition of water
Double strand structure with base pairs
The vascular tissue which transports organic solutes in plants
Secondary sexual characteristics in man
Female circumcision
Major cause of natural selection
May develop from a single fertilized egg
Allows nodding of the head
Similar structures due to common ancestry
Pressure of the cell contents against the cell wall
Veins
DNA
Multiple pregnancy
Genital mutilation
Condensation
Mutation
Adulthood
Joint
Wall pressure
Pelvic damage
Hereditary unit
Phloem
Development of beard
Identical twins
Homology
Turgor pressure
Nucleotide
Hydrolysis
Axis
Analogy
View Ans 19 Briefly explain three significances of mitosis in living organisms.
View Ans