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10th CBSE
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Important Questions on Control and Coordination

MEDIUM
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 7
The cerebellum in the brain controls voluntary actions of the body. Which of these actions is controlled by the cerebellum? 
MEDIUM
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 8
Which of these health conditions is caused by a hormonal imbalance in the body?
HARD
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 9

Sapna suffers from a condition due to which her average blood sugar level is 174 mg/dl. The average blood sugar level in a healthy is < 140 mg/dl.

Which of the following could be the cause of Sapna's condition.

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10th CBSE
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Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 10
Auxin is a plant hormone that promotes cell elongation and is produced by the apical meristem. It inhibits the growth of lateral buds which are present at nodes (where leaves attach to the stem). As long as sufficient auxin is produced by the apical meristem, the lateral buds remain dormant. A gardener wants the plants in the hedge that he is growing to become bushier with more branches. Which of the following should he do?
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10th CBSE
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Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 11

Shown in the figure below is a plant in which auxin is synthesised at part X of the plant. Geeta took the potted plant and cut off part X. She then took the plant and kept It near a window with sunlight and observed It after 7 days.

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Which of the following Is she Ilkely to have observed?

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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 12
During pollination, plants ensure that the pollen grain from a species germinates on the stigma of the same species. Which of the following ensures this?
EASY
10th CBSE
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Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 14
As first line of defense, stress hormones are released in humans. As an equivalent, which hormone is most likely to be released as first line of defense in plants?
MEDIUM
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 7 - Control and Coordination>Exercise>Q 15
There have been reports of plant hormones being found in animal bodies even when they are not synthesised by the animal. What can be the most common pathway of entry of such hormones in animals?