TEST
PAPER—CONTROL COORIDINATION—CLASS X – MAX MARKS: -
Q1 What
is the difference between a reflex action and walking?
Q2
What happens at the synapse between two neurons?
Q3
Which part of the brain maintains posture and equilibrium of the body?
Q4
How do we detect the smell of an agarbati incense sticks?
Q5
What is the role of the brain in reflex action?
Q5
What are plant hormones?
Q5 How is the movement of leaves of the
sensitive plant different from the movement of a shoot towards light?
Q6
Give an example of a plant hormones that promotes growth.
Q6
How do auxins promote the growth of a tendril around the support?
Q7
Design an experience to demonstrate hydrotropism.
Q8
How does chemical coordination take place in animals?
Q9
Why is the use of iodised salt advisable?
Q10
How does our body respond when adrenaline is secreted into the blood?
Q11
Why are some patients of diabetes treated by giving injections of
insulin?
Q12
Which of the following is a plant hormone?
(a) insulin (b) thyroxin (c) oestrogen (d) cytokinin
Q13
The gap between two neurons is called a:
(a) dendrite (b) synapse (c) oxon (d) impulse
Q14
What is the function of receptors in our body? Think of situation where
receptors do not work properly. What problems are likely to arise?
Q15
Draw the structure of a neuron and explain its fuction.
Q16
How does phototropism occur in plants?
Q17 Which signals will get disrupted in case
of a spinal cord injury?
Q18
How chemical coordination does occurs n plants?
Q19
What is the need for a system of control and coordination in an
organism?
Q20
How are involuntary actions ans reflex actions sifferent from each
other?
Q21
Compare and contrast nervous and hormonal mechanism for control and
coordination ion animals.
Q22
What is the difference between the manner in which movement in which
movement in the sensitivity plants and movement in our legs takes place?
Multiple Choice Questions
- Which of the following is called the master endocrine gland?
(a) adrenal (b) thyroid (c) parathyroid (d) pituitary
- Which endocrine gland is situated on the top of the either side of kidney?
(a) gonads (b) pituitary (c) pancreas (d) adrenels
- Which is a ductless gland
(a) gastric (b) lachrinal (c) adrenal (d) salivary
- The correct expanded form of TSH is:
a) thermal
stimulation hormone (b)
thyroid stimulation hormone
© test
stimulating hyposecretion (d)
thymus stimulating hormone
- Simple goiter, cretinism and myxedema are caused by:
(a) hyper
secretion of thyroid (b)
hyposecretion of thymus
© hyper
secretion of thymus (d)
hyposecretion of thyroid
- The secondary male characters appears at the puberty due to hormone:
(a)
oestrogen (b)
progesterone (c)
testosterone (d) growth
hormone
- Most of plant growth regulates are produced at the:
(a) tip of
growing shoot (b) tip of
growing root
© companion cell
of phloem (d) Both (a)
& (b)
- The main functions of abscisic acid are:
(a)
Breaking of dormancy, ripening
of fruits, yellowing of leaves and their downwards bending.
(b)
Control of cell
differentiation, stimulation of apical bud for growth and delay in ageing.
(c)
Ripening of fruits, inducing
flowering, breaking of dormancy.
(d)
Promotion of leaf fall,
dormancy in seeds, tubers and bulbs and promotion of dormancy.
- Which of the following are examples of physical stimulus?
(a)
change in the concentration of
body fluids and pH of water.
(b)
Atmospheric pressure, light and
temperature.
(c)
Micro-organism (disease
causing)?
(d)
Macro-organism present in the
environment.
- Which of the following applies to endocrine glands?
(a)
large glands which are under
control of our will.
(b)
Glands which do not have ducts
to pour in their secretions.
(c)
Pour their secretion with the
help of tubes or ducts directly into blood.
(d)
Glands the action of their
secretion is localized.
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