A runner is under stress just before a race. Which hormone will prepare the body most immediately?
Answer and explanation
Correct answer: Adrenaline
Adrenaline, also called epinephrine, is released by the adrenal glands during immediate stress. It produces the fight-or-flight response by increasing heart rate, breathing rate and blood flow to skeletal muscles, while making stored energy more available. Therefore option A best explains rapid preparation for a race. Estrogen is a reproductive hormone, whereas cytokinin and abscisic acid are plant hormones.
Frequently asked questions
What is the correct answer to this question?
Adrenaline
Why is this the correct answer?
Adrenaline, also called epinephrine, is released by the adrenal glands during immediate stress. It produces the fight-or-flight response by increasing heart rate, breathing rate and blood flow to skeletal muscles, while making stored energy more available. Therefore option A best explains rapid preparation for a race. Estrogen is a reproductive hormone, whereas cytokinin and abscisic acid are plant hormones.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
