(a) Name the gland and the hormone secreted by it in scary situations in human beings. List any two responses shown by our body when this hormone is secreted into the blood.
OR
(b) In the given diagram (i) Name the parts labelled A, B, and C. (ii) Write the functions of A and C. (iii) Reflex arcs have evolved in animals ? Why ?
(a) Name the gland and the hormone secreted by it in scary situations in human beings. List any two responses shown by our body when this hormone is secreted into the blood.
OR
(b) In the given diagram (i) Name the parts labelled A, B, and C. (ii) Write the functions of A and C. (iii) Reflex arcs have evolved in animals ? Why ?
The gland is the adrenal gland and the hormone secreted by it in scary situations in human beings is adrenaline. Two responses shown by our body when this hormone is secreted into the blood are: (i) Increased heart rate (ii) Increased blood pressure
Marking Scheme
- 1Adrenaline is a hormone secreted by the adrenal gland in response to stress or scary situations.
- 2Increased heart rate
- 3Increased blood pressure
Hint
Adrenaline is a hormone secreted by the adrenal gland in response to stress or scary situations.
Quick Oral Answer
Adrenaline is a hormone secreted by the adrenal gland in response to stress or scary situations. It prepares the body for 'fight or flight' by increasing heart rate and blood pressure.
Analysis & Explanation
Adrenaline is a hormone secreted by the adrenal gland in response to stress or scary situations. It prepares the body for 'fight or flight' by increasing heart rate and blood pressure.
Common Mistakes
- 1Confusing adrenaline with other hormones
- 2Not understanding the role of adrenaline in the body
Interesting Facts
Adrenaline is also known as epinephrine.
Adrenaline is used as a medication to treat anaphylaxis, a severe allergic reaction.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2023?
This question carries 3 marks in the CBSE Class 10 Science 2023 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Chemical Reactions and Equations" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2023 paper?
This is a Short Answer question from Section Section C in the CBSE Class 10 Science 2023 paper.