Home / iGCSE Biology (0610)-14.3 Hormones – iGCSE Style Questions Paper 3

iGCSE Biology (0610)-14.3 Hormones – iGCSE Style Questions Paper 3

IGCSE Biology (0610) Practice Questions Paper 3 - All Chapters
Question

(a) The list shows some of the organs and glands in the human body

adrenal ovary prostate
pancreas salivary testis

Using words from the list, state the names of:
– the glands positioned directly above each kidney
– the organ that releases insulin
– the two organs that release hormones that regulate the development of secondary sexual characteristics.

(b) One of the effects of adrenaline is to increase pupil diameter.
(i) Suggest the target organ of adrenaline in this response.
(ii) State two other effects of adrenaline on the body.

(iii) State the part of the blood that transports adrenaline.

(c) The statements describe hormonal and nervous control.
Tick two statements that are true for nervous control.

Hormonal and Nervous Control Statements
▶️ Answer/Explanation
Solution

(a)

– Adrenal glands are positioned directly above each kidney.
– The pancreas releases insulin.
– The testis (testes) and ovary release hormones (testosterone and estrogen/progesterone) that regulate secondary sexual characteristics.

Explanation: The adrenal glands are located above the kidneys, the pancreas produces insulin, and the testes/ovaries secrete sex hormones responsible for secondary sexual traits.

(b)(i) Eye(s)

Explanation: Adinephrine acts on the iris muscles to dilate pupils, enhancing vision in low light or stress.

(b)(ii) Any two from:
– Increased breathing rate
– Increased heart rate
– Increased sweating or awareness

Explanation: Adrenaline prepares the body for “fight or flight” by boosting oxygen supply and alertness.

(b)(iii) Plasma

Explanation: Adrenaline is a hormone dissolved in blood plasma for transport.

(c)

Nervous Control Correct Statements

Explanation: Nervous control is rapid (✓) and involves electrical impulses (✓). Hormonal control is slower and uses chemical messengers.

Question

The boxes on the left contain the names of parts of the body that produce hormones.
The boxes in the centre contain the names of hormones.
The boxes on the right contain functions of these hormones.
(a) Draw one straight line to link each hormone to the part of the body where it is produced.
Draw one straight line to link each hormone to its function.

(b) State how hormones are transported round the body.
…………………………………………………………………………………………………………………………………

Answer/Explanation

Ans:

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