Question

02 What are plant hormones ? Explain examples with function
03 Difference between nervous system and endocrine system
04 Which is the largest part of human brain ? Explain its function.
05 What are hormones ? Explain their function.
06 Which part of brain controls involuntary activities? Explain its
any two parts with function.
07 a - What is reflex arc?
b - What plays the role in control and co-ordination in
multicellular organisms ?
C - Explain the function of brain
08 Explain any three endocrine glands in human in detail.
09 Explain any two parts of hind brain with their functions
10 Which plant or animal hormone controls below activities?
a) Increase in the level of sugar
b) Physical changes in boy
c) Plant growth and development
d) hastens fruit development
e) Dwarfism
f) Goiter
11 Draw the diagram of human brain and label the pituitary gland,
forebrain, pons, cerebellum and mention the function of medulla
oblongata.
12 How oxygen plays role in the development of plant ? Explain
with diagram.
13 What are hormones ? Explain the function of thyroxine and
insulin
14 What are plants movements ? Explains its types with particular
examples
15 Draw the diagram of reflex are and explain the pathway of
transmission of nerve impulse.
16 Draw the tabular form or chart showing the parts of human
brain.
17 Name the external sensitive organs and what are the sense
received by them give proper examples.​

Answer 1

Explanation:

1 ans=Plant Hormones are the plant growth regulators. They require in small amount but necessary for functioning of Plants. There are several Plant Hormones classes, namely, Auxin, Cytokinin, Gibberellin, Abscisic Acid, Ethylene. Here are the functions of plant hormones in short.

function of plant hormoneare

There are several Plant Hormones classes, namely, Auxin, Cytokinin, Gibberellin, Abscisic Acid, Ethylene. Here are the functions of plant hormones in short. Functions of Auxin : Cell enlargement, apical dominance, prevention from bending; promote xylem differentiation, healing of wounds of plants.