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Biology 10 Chapter 14 - Reproduction - 18
1.
Seed germination depends on ......................conditions?
a) Internal
b) Both internal and external
c) External
d) None of these
2.
What is included in internal conditions?
a) Water
b) Oxygen
c) A live embryo
d) Temperature
3.
What is included in internal conditions?
a) Oxygen
b) Temperature
c) Sufficient food storage
d) Water
4.
What are the most important external conditions?
a) Water
b) A live embryo
c) Sufficient food storage
d) None of these
5.
What are the most important external conditions?
a) None of these
b) Oxygen
c) A live embryo
d) Sufficient food storage
6.
What are the most important external conditions?
a) All of these
b) Temperature
c) A live embryo
d) Sufficient food storage
7.
What is the use of absorbed water in the seed?
a) In the digestion of stored food
b) In the elongation of hypocotyl and epicotyl
c) Both b and c
d) For respiration of cells
8.
What is essential for the respiration in the cells of embryo?
a) Temperature
b) Sufficient food storage
c) Water
d) Oxygen
9.
What is the optimum temperature range for the germination of the seeds of most plants?
a) 25-30oC
b) 20-25oC
c) None of these
d) 15-20oC
10.
What is gametogenesis?
a) Fusion of spores
b) Formation of spores
c) Formation of gametes
d) Fusion of gametes
11.
In gametogenesis, which gamete undergoes meiosis?
a) Haploid
b) Triploid
c) None of these
d) Diploid
12.
Which of the following is produced when the diploid gamete undergoes meiosis?
a) Haploid gamete
b) Triploid gamete
c) None of these
d) Diploid gamete
13.
What is haploid gamete?
a) 1N
b) 3N
c) 2N
d) 4N
14.
What are the organs called in which male and female gametes are produced?
a) Thyroid gland
b) Gonads
c) Parathyroid gland
d) Pancreas
15.
What are male gonads called?
a) Ovaries
b) Egg cells
c) Ova
d) Testes
16.
What are female gonads called?
a) Testes
b) Ovaries
c) Ova
d) Egg cells
17.
What is the production of sperms in testes called?
a) Oogenesis
b) Vas deferens
c) Spermatogenesis
d) Prostate gland
18.
What is the production of egg cells in ovaries called?
a) Vas deferens
b) Prostate gland
c) Oogenesis
d) Spermatogenesis
19.
What is formed when cells present in the walls of the seminiferous tubules of testes divide repeatedly by mitosis?
a) Small number of diploid spermatogonia
b) Meiosis-I
c) Small number of haploid spermatogonia
d) What process do each spermatocyte undergoes?
e) Large number of haploid spermatogonia
f) Large number of diploid spermatogonia
20.
By which process cells present in the walls of the seminiferous tubules of testes divide repeatedly?
a) Apoptosis
b) Necrosis
c) Meiosis
d) Mitosis
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