Which statement correctly identifies the effect of gibberellin?
Answer and explanation
Correct answer: It helps increase stem length
Gibberellin is a plant growth hormone that promotes stem elongation and can contribute to an increase in overall plant height. It also has roles in seed germination and other growth processes, but stem elongation is the key effect tested here. Blood-sugar control, fear-related heartbeat, and pupil-size regulation are animal physiological functions involving hormones or the nervous system, not gibberellin. Hence, option A is correct.
Frequently asked questions
What is the correct answer to this question?
It helps increase stem length
Why is this the correct answer?
Gibberellin is a plant growth hormone that promotes stem elongation and can contribute to an increase in overall plant height. It also has roles in seed germination and other growth processes, but stem elongation is the key effect tested here. Blood-sugar control, fear-related heartbeat, and pupil-size regulation are animal physiological functions involving hormones or the nervous system, not gibberellin. Hence, option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
