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Science True-False

Control and Coordination · CBSE STD 10 (CBSE - English Medium). 5 questions.

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True-False

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5 questions · timed · auto-graded

Question 11 Mark
All the voluntary actions of our body are controlled for control of by pons. [True/ False]
Answer
True.
Explanation:
All the voluntary actions of our body are controlled by the cerebrum. The cerebrum is the largest and the most prominent part of the brain.
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Question 21 Mark
Reflex arc is found in human beings only. [True/ False]
Answer
True.
Explanation:
A true reflex arc involves only a few neurons, or cells of the nervous system, and the information goes only from your body to your spinal cord, not your brain. Let's look at the cells that make up the reflex arc and how they work.
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Question 31 Mark
The plant part which exhibits negative geotropism is branch. [True/ False]
Answer
True.
Explanation:
Plant stem grows upward opposite to the force of gravity. Hence, it exhibits negative geotropism.
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Question 41 Mark
The role of synapses ensures that nerve impulses travel in one direction. [True/ False]
Answer
True.
Explanation:
Nerve impulses cannot travel in the opposite direction, because nerve cells only have neurotransmitter storage vesicles going one way, and receptors in one place.
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Question 51 Mark
The directional growth of a plant part in response to touch of an object is known as thigmotropism. [True/ False]
Answer
True.
Explanation:
Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus.
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