I . CHOOSE THE CORRECT ANSWERS 10× 1 =10
1. Hormone is____________________.
(a) Enzyme product (b) chemical messanger
(c) Nerve impulse (d) excretory product.
2. Secretion of milk is maintained by _________________
(a) relaxin (b) oestrogen (c) prolactin (d) progesterone
3. Glucose level of blood is regulated by ___________________
(a) Thyroxine & calcium (b) insulin & glucagon
(c) insulin & thyroxine (d) glucagone & thyroxine
4. Junction of two neurons is called ____________________
(a) synapse (b) synapsis (c) joint (d) junction
5. The substance which accelerates the growth in stem is______________
(a) vitamin (b) enzyme (c) auxin (d) chlorophyll
6. gibberellins stimulate ______________
(a) cell division (b) growth of lateral roots
(c) elongation of internodes (d) curvature of coleoptile
7. The brain is responsible for _________________________
(a) thinking (b) regulating the heart beat (c) balancing the body (d) all of the above
8. Plant hormones are called ________________
(a) hypohormone (b) metahormone (c) phytohormone (d) cytohormone
9. _____________ conduct nerve impulse away from the cell body.
(a) axon (b) cyton (c) dendrites (d) none of these
10. Which of the following is correct about receptor?
(a) Olfactory receptor detects smell and are present on the tongue.
(b) Gustatory receptors detect smell and are present on the tongue
(c) Olfactory receptor detects smell and are present in nose
(d) Gustatory receptors detect taste and are present in nose
II . ANSWER ANY 5 OF THE FOLLOWING 5×2=10
1. What are plant hormones? Write the types of plant hormones?
2. Draw a diagram of reflex arc and label in it sensory neuron, motor neuron, relay neuron, receptors?
3. Compare and contrast nervous and hormonal mechanisms for control and coordination in animals?
4. Which gland is called master gland and list out the hormones which are secreted by that gland?
5. Give an example of plant hormones that promotes growth at the shoot tip of the stem and
stem of the plant?
6. Illustrate the path way of reflex action when you touch a hot object?
7. What is the role of dendrites?
III. Activity 20
IV. CW/HW 10
1. Hormone is____________________.
(a) Enzyme product (b) chemical messanger
(c) Nerve impulse (d) excretory product.
2. Secretion of milk is maintained by _________________
(a) relaxin (b) oestrogen (c) prolactin (d) progesterone
3. Glucose level of blood is regulated by ___________________
(a) Thyroxine & calcium (b) insulin & glucagon
(c) insulin & thyroxine (d) glucagone & thyroxine
4. Junction of two neurons is called ____________________
(a) synapse (b) synapsis (c) joint (d) junction
5. The substance which accelerates the growth in stem is______________
(a) vitamin (b) enzyme (c) auxin (d) chlorophyll
6. gibberellins stimulate ______________
(a) cell division (b) growth of lateral roots
(c) elongation of internodes (d) curvature of coleoptile
7. The brain is responsible for _________________________
(a) thinking (b) regulating the heart beat (c) balancing the body (d) all of the above
8. Plant hormones are called ________________
(a) hypohormone (b) metahormone (c) phytohormone (d) cytohormone
9. _____________ conduct nerve impulse away from the cell body.
(a) axon (b) cyton (c) dendrites (d) none of these
10. Which of the following is correct about receptor?
(a) Olfactory receptor detects smell and are present on the tongue.
(b) Gustatory receptors detect smell and are present on the tongue
(c) Olfactory receptor detects smell and are present in nose
(d) Gustatory receptors detect taste and are present in nose
II . ANSWER ANY 5 OF THE FOLLOWING 5×2=10
1. What are plant hormones? Write the types of plant hormones?
2. Draw a diagram of reflex arc and label in it sensory neuron, motor neuron, relay neuron, receptors?
3. Compare and contrast nervous and hormonal mechanisms for control and coordination in animals?
4. Which gland is called master gland and list out the hormones which are secreted by that gland?
5. Give an example of plant hormones that promotes growth at the shoot tip of the stem and
stem of the plant?
6. Illustrate the path way of reflex action when you touch a hot object?
7. What is the role of dendrites?
III. Activity 20
IV. CW/HW 10
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