What is homeostasis?

How does negative feedback counteract changes if the level of something is too high/low?

What are the four main parts of the nervous system?

What are receptors?

What is the series of parts of the nervous system that triggers a response from a stimulus?

What are synapses?

What are reflexes?

Explain reflexes in terms of the reflex arc?

Explain the investigation for reaction time?

How is reaction time measured by a computer?

What is the function of the brain and name the different regions?

What are the three methods to study the brain?

What are the parts of the eye?

What is the iris reflex?

Explain focusing to look at near objects?

Explain focusing to look at distant objects?

Describe how people are long-sighted?

Describe how people are short-sighted?

What temp should the inside of the body be?

What is the thermoregulatory centre?

Explain how body temperature is regulated via negative feedback?

What is the function of antagonist effectors?

How does the body alter its temperature when it's too hot/cold?

What are hormones?

Name the six main endocrine glands?

What is the difference between the way hormones and nerves carry messages?

How does the body control blood glucose levels?

What are the two types of diabetes?

What are the functions of the kidneys?

What are the three main things removed from the body in urine?

What controls the concentration of urine?

What happens if the water content is too high/low?

What happens if the kidneys don't work properly?

What is the job of a dialysis machine?

How can kidney transplant not work?

At puberty what do hormones do?

Describe the four stages of the menstrual cycle?

What is the follicle-stimulating hormone (FSH)?

What is oestrogen?

What is luteinising hormone (LH)?

What is progesterone?

How can hormones be used to reduce fertility?

What is the pill?

Give examples of four other contraceptives that contain hormones?

Give some examples of barrier methods of contraception?

Give some examples of the more extreme ways to avoid pregnancy?

How can hormones be used to increase fertility?

What is IVF?

What are the pros/cons of IVF?

What has improved IVF?

Why are some against IVF?

What is the function of adrenaline?

What is a negative feedback system?

How does thyroxine regulate metabolism?

What is Auxin?

How do shoots grow towards the light?

How do shoots grow away from gravity?

How do roots grow towards gravity?

How would you investigate plant growth responses?

What are the three main uses of auxin?

What is Gibberellin?

What are the uses of Gibberellin?

How does ethene stimulate the ripening of fruit?