Table of Contents
IGCSE Biology: Mammalian Hormones – Revision Test #
Instructions:
• Answer ALL questions
• For multiple choice questions, circle the correct letter (A, B, C, or D)
• For written questions, write your answers in the spaces provided
• Total marks: 50
• Time allowed: 1 hour
• Answer ALL questions
• For multiple choice questions, circle the correct letter (A, B, C, or D)
• For written questions, write your answers in the spaces provided
• Total marks: 50
• Time allowed: 1 hour
SECTION A: MULTIPLE CHOICE QUESTIONS (20 marks) #
Choose the best answer for each question. Circle the letter of your choice.
1. What is a hormone?
2. Which of the following best describes how hormones travel around the body?
3. Which gland produces the hormone adrenaline?
4. Where are the adrenal glands located in the body?
5. Which two hormones are produced by the pancreas?
6. What is the main function of insulin?
7. Which hormone has the primary role in raising blood glucose levels during normal metabolism?
8. The pituitary gland is often called the “master gland” because it:
9. Which hormones are produced by the pituitary gland?
10. What does FSH stand for?
11. Which hormone is responsible for male sexual development and characteristics?
12. Which two hormones are produced by the ovaries?
13. What happens to your heart rate when adrenaline is released?
14. Which of the following situations would most likely cause adrenaline to be released?
15. Compared to nervous control, hormonal control is:
16. How do nerve impulses travel through the body?
17. Which hormone helps maintain the uterus lining during pregnancy?
18. What does LH trigger in males?
19. Why does adrenaline increase blood glucose concentration?
20. Which system provides more precise targeting of specific body parts?
SECTION B: WRITTEN RESPONSE QUESTIONS (30 marks) #
Answer all questions in the spaces provided. Use clear, complete sentences.
1. Define the term “hormone” and explain how hormones work as messengers in the body.
[4 marks]
2. Complete the table below about endocrine glands and their hormones:
[5 marks]
| Endocrine Gland | Hormone(s) Produced | Location in Body |
|---|---|---|
| Adrenal glands | ||
| Insulin and glucagon | ||
| Testes | In the scrotum |
3. Explain what happens to the body when adrenaline is released. Include:
a) Two specific effects adrenaline has on the body [2 marks]
b) Why these effects are helpful during emergencies [3 marks]
4. Give three examples of situations that would cause adrenaline to be released and explain why each situation triggers this response.
[6 marks]
5. Compare nervous control and hormonal control by explaining the differences in:
[4 marks]
a) Speed of action
b) Duration of effect
c) Type of signal used
d) How signals travel through the body
b) Duration of effect
c) Type of signal used
d) How signals travel through the body
6. Explain the difference between insulin and glucagon in terms of their effects on blood glucose levels.
[4 marks]
7. A student is about to take an important exam and feels very nervous. Describe what is happening in their body in terms of hormone release and explain how this might actually help them perform better.
[4 marks]
8. State the functions of the following hormones:
[4 marks]
a) FSH:
b) LH:
c) Testosterone:
d) Oestrogen:
End of Test
Total marks: 50
Make sure you have answered all questions.
Total marks: 50
Make sure you have answered all questions.
