Why is adrenaline called the emergency hormone?
Answer and explanation
Correct answer: Because it quickly activates the body during danger
Adrenaline is released during fear, stress, or danger and prepares the body for a rapid emergency response. It increases heart rate, breathing efficiency, blood flow to muscles, and the availability of glucose for immediate energy. This coordinated fight-or-flight response explains why option A is correct. Adrenaline is not a plant-only substance, does not induce sleep, and does not cause phototropism, so B, C, and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
Because it quickly activates the body during danger
Why is this the correct answer?
Adrenaline is released during fear, stress, or danger and prepares the body for a rapid emergency response. It increases heart rate, breathing efficiency, blood flow to muscles, and the availability of glucose for immediate energy. This coordinated fight-or-flight response explains why option A is correct. Adrenaline is not a plant-only substance, does not induce sleep, and does not cause phototropism, so B, C, and D are incorrect.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
