Question

A. Choose the best option out of the four.
1. Flowers with both androecium and gynoecium are called -
a) Bisexual flowers
b) Anther
c) Stamens
d) Unisexual flowers
2. The transfer of pollen from the anther to stigma is called -
a) Pollination
b) Fertilization
c) Adoption
d) Diffusion
3. The fusion of female reproductive nucleus with the male reproductive nucleus is known as -
a) Adoption
b) Excretion
c) Fertilization
d) Regeneration
4. Budding, in hydra, is a form of -
a) Apoptosis
b) Sexual reproduction
c) Asexual reproduction
d) None of the above
5. Embryo sac is located inside the -
a) Stigma
b) Ovule
c) Micropyle
d) Style
6. The stalk of Datura flower at its base is known as -
a) Pedicel
b) Corolla
c) Sepals
d) Thalamus
7. The male reproductive parts of a flower, the stamens, are collectively known as -
a) Androecium
b) Filament
c) Anther
d) Gynoecium
8. The other name for gynoecium is -
a) Pistil
b) Stigma
c) Androecium
d) Style
9. Transpiration is very low during storms due to -
a) Presence of moisture in wind
b) Low temperature during storm
c) High velocity of winds
d) None of these
10. In plants, water rises upward through -
a) Phloem
b) Cambium
c) Xylem
d) Cortex
11. Water will be absorbed by root hairs when -
a) Concentration of solutes in the cell sap is high
b) Concentration of solutes in the cell sap is low
c) Semipermeable membrane
d) Impermeable membrane
12. Which of the following is a macro-nutrient-?
a) Potassium
b) Magnesium
c) Calcium
d) Sulphur
13. Major loss of water during transpiration occurs through -
a) Cuticle
b) Bark
c) Hydathodes
d) Stomata
14. Force responsible for the ascent of sap is -
a) Capillary force
b) Root pressure
c) Transpirational pull
d) All the three
15. Source of turgor in plant cell is -
a) Air
b) Water
c) Hormone
d) All of these
16. Diffusion occurs when molecules move -
a) From lower concentration to higher concentration.
b) From higher concentration to lower concentration through a membrane.
c) From higher concentration to lower concentration.
d) When energy is used.
17. The testes are located within the –
a) Penis
b) Ureter
c) Scrotum
d) Urinary bladder
18. Fertilization in human takes place in –
a) Ampulla of oviduct
b) Epididymis
c) Uterus
d) Vagina
19. The external genitalia of female body –
a) Ovary
b) Vagina
c) Vulva
d) Endometrium
20. The copulatory organ of male is –
a) Cowper’s gland
b) Urethra
c) Penis
d) Testes

Answer 1

Answer:

1.a) Bisexual flowers

2.Pollination

3.Fertilization

4.vegetative reproduction (None of the above)

5. Micropyle

6.Pedicel

7.Androecium

8.Pistil

9) Presence of moisture in wind

10.Xylem

11. semipermeable

12. Potassium

13.Stomata

14.All the three

15.All of these

16.From higher concentration to lower concentration.

17.Scrotum

18.Ampulla of oviduct

19.Vulva

20.Penis