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Question : 22
Total: 39
(A) Name the part of brain which is responsible for following actions:
(i) Maintaining posture and balance
(ii) Beating of heart
(iii) Thinking
(iv) Blood pressure
OR
(B) Where are auxins synthesized in a plant? Which organ of the plant shows:
(i) Positive phototropism
(ii) Negative geotropism
(iii) Positive hydrotropism
(i) Maintaining posture and balance
(ii) Beating of heart
(iii) Thinking
(iv) Blood pressure
OR
(B) Where are auxins synthesized in a plant? Which organ of the plant shows:
(i) Positive phototropism
(ii) Negative geotropism
(iii) Positive hydrotropism
Solution:
(A) (i) Maintaining posture and balance: Cerebellum in hind brain
(ii) Beating of heart: Medulla in hind brain
(iii) Thinking: Cerebrum in forebrain
(iv) Blood pressure: Medulla in hind brain
OR
(B) Auxins are synthesised in the growing tips of roots and shoots in a plant.
(i) Shoot
(ii) Shoot
(iii) Roots
(ii) Beating of heart: Medulla in hind brain
(iii) Thinking: Cerebrum in forebrain
(iv) Blood pressure: Medulla in hind brain
OR
(B) Auxins are synthesised in the growing tips of roots and shoots in a plant.
(i) Shoot
(ii) Shoot
(iii) Roots
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