1. (d) Mesosome
2. Rhizopus/ Mucor
3. Cleavage furrow
4. Osmosis/Diffusion of water
across the membrane.
Functions: Active transport and passive
transport.
5. Chlorophyll b, Xanthophyll
and Carotene.
Significance of accessory
pigments:
> Absorption and transfer of light to
the reaction centre.
> Protect the chlorophyll a from
photooxidation.
6. c. Collenchyma
Function: - Mechanical support,
Photosynthesis etc.
7. Aerobic respiration: Occurs
in presence of oxygen. High energy output (38 or 36 ATP).
Anaerobic respiration: Occurs in the
absence of oxygen. Low energy output (2 ATP).
8. Sporophyte.
Peculiarities: Diploid (2n) structure.
Produces haploid (n) spores.
9. Second stage: Metaphase.
Third stage: Anaphase.
Features of second stage (Metaphase):
All chromosomes at equator. Chromosomes at maximum condensation.
10. a. Grana
b. Stroma
Function of grana: Light reaction.
Function of stroma: Dark reaction.
11. Kranz anatomy.
Peculiarities:
> Two types of chloroplasts.
> Bundle sheath chloroplast is large.
> Closely packed bundle sheath cells.
12. ATP synthase (Complex V)
Function: ATP synthesis (oxidative phosphorylation).
13. Copper, Boron, Manganese, Chlorine
14.
|
A |
B |
|
a.
Reduction |
iv. Formation of glucose |
|
b.
Photolysis |
i. Formation of oxygen |
|
c.
Photorespiration |
ii. Formation of phosphoglycolate |
|
d.
Carboxylation |
ii. Formation of 3-PGA |
15. Solanaceae Gynoecium: Bicarpellary obligately placed, syncarpous; ovary superior,
bilocular.
Fabaceae Gynoecium: Ovary superior, mono carpellary, unilocular with many ovules.
16. (a) Apical dominance – Auxin.
Bolting – Gibberellin.
Apical dominance is the promotion of
apical bud by suppressing lateral buds.
Bolting is the rapid stem elongation just
prior to flowering in rosette plants.
(b) Abscisic
acid (ABA).
17. (a) Pneumatophores: Function
is respiration.
(b) Thorn: Function is protection.
(c) Tendrils: Function is mechanical support.
18. Root hair: Absorption of
water and minerals.
Stomata: Transpiration.
Bulliform cells: Rolling and unrolling of leaves to reduce surface area.