AQA GCSE COMBINED
SCIENCE TRILOGY - BIOLOGY
- PAPER 2 FLASHCARDS
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,1. What is homeostasis?
The process of maintaining a stable internal environment.
2. Why is homeostasis important?
Because it is essential for the survival of cells.
3. What does the control system do?
Keeps the conditions in your body steady.
4. What happens if the blood glucose level is too high?
The control system decreases the level.
5. What happens if the blood glucose level is too low?
The control system increases the level.
6. What does the nervous system mean?
That humans react to their surroundings and coordinate their behaviour.
7. What does the Central Nervous System (CNS) consist of?
Brain and spinal cord.
8. What is the CNS connected to?
The body by sensory neurones and motor neutrons.
9. What do Sensory Neurones do?
They carry information as electrical impulses from the receptor to the CNS.
10. What do Motor Neurons do?
They carry electrical impulses from the CNS to effectors.
11. What are Receptors?
Cells that detect stimuli.
12. Give an example of a receptor.
Receptors in the ear detect sound.
13. What do Effectors respond to?
Electrical impulses and bring about a change.
14. Give 2 examples of effectors.
Muscles and glands.
15. What is the process of CNS?
Stimulus -> Receptor -> Sensory Neurone -> CNS -> Motor Neurone -> Effector ->
Response.
16. What is a Synapse?
It is where two neurones join together.
, 17. What are Reflexes?
An automatic responses to prevent injury.
18. What are hormones?
Chemical messengers sent in the blood.
19. What is another name for the Pituitary Gland?
Master Gland.
20. What does the Pituitary Gland produce?
Many hormones that regulate body conditions.
21. What do Ovaries produce?
Oestrogen.
22. What is oestrogen involved in?
Menstrual cycle.
23. What do the testes produce?
Testosterone.
24. What do the testes control?
Puberty and sperm production in men.
25. What does the thyroid produce?
Thyroxine.
26. What is Thyroxine involved in?
Rate of metabolism, heart rate, temperature.
27. What does the Adrenal Gland produce?
Adrenaline.
28. What is Adrenaline involved in?
Prepare the body for a fight or flight response.
29. What does the pancreas produce?
Insulin.
30. What is Insulin used for?
Regulating the blood glucose level.
31. Give 3 characteristics of nerves.
Very fast action, act for a short time, act in a very precise manner.
32. Give 3 characteristics of hormones.
Slower action, act for a long time, act in a more general way.
SCIENCE TRILOGY - BIOLOGY
- PAPER 2 FLASHCARDS
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,1. What is homeostasis?
The process of maintaining a stable internal environment.
2. Why is homeostasis important?
Because it is essential for the survival of cells.
3. What does the control system do?
Keeps the conditions in your body steady.
4. What happens if the blood glucose level is too high?
The control system decreases the level.
5. What happens if the blood glucose level is too low?
The control system increases the level.
6. What does the nervous system mean?
That humans react to their surroundings and coordinate their behaviour.
7. What does the Central Nervous System (CNS) consist of?
Brain and spinal cord.
8. What is the CNS connected to?
The body by sensory neurones and motor neutrons.
9. What do Sensory Neurones do?
They carry information as electrical impulses from the receptor to the CNS.
10. What do Motor Neurons do?
They carry electrical impulses from the CNS to effectors.
11. What are Receptors?
Cells that detect stimuli.
12. Give an example of a receptor.
Receptors in the ear detect sound.
13. What do Effectors respond to?
Electrical impulses and bring about a change.
14. Give 2 examples of effectors.
Muscles and glands.
15. What is the process of CNS?
Stimulus -> Receptor -> Sensory Neurone -> CNS -> Motor Neurone -> Effector ->
Response.
16. What is a Synapse?
It is where two neurones join together.
, 17. What are Reflexes?
An automatic responses to prevent injury.
18. What are hormones?
Chemical messengers sent in the blood.
19. What is another name for the Pituitary Gland?
Master Gland.
20. What does the Pituitary Gland produce?
Many hormones that regulate body conditions.
21. What do Ovaries produce?
Oestrogen.
22. What is oestrogen involved in?
Menstrual cycle.
23. What do the testes produce?
Testosterone.
24. What do the testes control?
Puberty and sperm production in men.
25. What does the thyroid produce?
Thyroxine.
26. What is Thyroxine involved in?
Rate of metabolism, heart rate, temperature.
27. What does the Adrenal Gland produce?
Adrenaline.
28. What is Adrenaline involved in?
Prepare the body for a fight or flight response.
29. What does the pancreas produce?
Insulin.
30. What is Insulin used for?
Regulating the blood glucose level.
31. Give 3 characteristics of nerves.
Very fast action, act for a short time, act in a very precise manner.
32. Give 3 characteristics of hormones.
Slower action, act for a long time, act in a more general way.
