Question

assignment questions of biology class's 10

Answer 1

ch Control and
Coordination

Name or give one term for the following
a) Branched protoplasmic extension of
the cell body b) Part of the brain that
coordinate muscular activity
2
Give an example for plant hormone that
promotes the growth.
3
Name the receptors for taste and smell.
4
Why is the use of iodised salt
advisable?
5
Which part of the brain maintains
posture and equilibrium of the body?
TWO MARK QUESTIONS
6
What are a) Cranial nerves b) Spinal
nerves
7
What are synapses? What happens at
the synapse between two neurons?
8
Define the terms
1. Phototropism 2. Geotropism 3.
Chemotropism
9
How does muscle fibers bring about
movement by shortening the muscle
fiber.
10
How does chemical coordination occur
in plants?
11
How is the movement of a leaves of the
sensitive plant different from the
movement of a shoot towards light?
12
What are the short fibers of a neuron
known as? Mention their function.
13
What are the long fibers of a neuron
known as? Mention their function.
THREE MARK QUESTIONS
14
Hind brain consists of three parts .What
are they? Mention the functions of each.
15
What are the components of a fore brain
in human? Write the functions of the
same.
16
Draw a neat diagram of human brain
and label any six parts.
17
What is neuromuscular junction? Draw
a diagram of neuromuscular junction .
18
Draw a neat diagram of reflex arc and
explain their pathway.
19
How does our body respond when
adrenaline is secreted into the blood?
20
How do auxin promote the growth of a
tendril around a support?
21
Draw the structure of a neuron and
explain its function.
EXTRA QUESTIONS
1
Which signals will get disrupted in case
of a spinal cord injury?
2
What is the function of receptors in our
body? Think of situations where
receptors do not work properly. What
problems are likely to arise?
3
Why are some patients of diabetes
treated by giving injections of insulin?
4
a)What is the difference between
sensory neuron and motor neuron? b)
Which part of the human brain is
responsible for auditory reception and
sensation of smell?
5
a) Name the two main constituents of
the Central Nervous system in human
beings.
b) What is the need for a system of
control and coordination in human
beings
6
a) Distinguish between voluntary and
involuntary actions in our bodies
b) Choose involuntary actions from
amongst the following

ch reproduction in pics