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CB7F
Pearson GCSE Combined Science Biology Foundation
| Question | Answer |
|---|---|
| Which cells in the nervous system detect changes? | (receptor cells) |
| Sense organs contain receptors cells. Give one example of a sense organ. | (e.g. eye, ear, nose, tongue, skin) |
| Which parts of the body cause the response to a stimulus? | (effectors) |
| Give an example of an effector. | (one of: muscle, gland) |
| In what form is information transmitted in the nervous system? | ((electrical) impulses) |
| How are soluble chemical substances (e.g. digested food molecules) carried around the body? | (in the blood/plasma) |
| Name one hormone produced in the male reproductive system. | (testosterone) |
| Name one hormone produced by ovaries. | (one of: oestrogen, progesterone) |
| Which general name is given to an organ that responds to a hormone? | (target organ) |
| What effect do hormones have on organs that respond to them? | (change how the organ is working) |
| What name is given to a substance produced in the body that changes how its target organs work? | (hormone) |
| Name the endocrine gland that produces testosterone. | (testis/testes) |
| How does testosterone get from where it is made to its target organs? | in blood) |
| Name the hormone that produces changes in girls as they become women. | (oestrogen) |
| H In which gland is thyroxine produced? | (thyroid gland) |
| H What is the function of thyroxine in the body? | (controls metabolic rate) |
| H Which hormone controls the fight or flight response? | (adrenalin) |
| H Which term describes when a change in a system causes the opposite change, returning the system to a normal level? | (negative feedback) |
| What name is given to the cycle of changes in a woman’s reproductive system that happens every month? | (menstrual cycle) |
| What name is given to methods that prevent fertilisation? | (contraception) |
| Which term describes the cycle of changes in a woman’s body that happens about every 28 days? | (menstrual cycle) |
| On approximately which day of the menstrual cycle is an egg cell released from an ovary? | (day 14) |
| Name two hormones that help to control the menstrual cycle. | oestrogen, progesterone, |
| State where oestrogen is produced. | (ovaries) |
| How do changes in the blood concentrations of oestrogen and progesterone trigger menstruation? | (Concentrations of both hormones decrease.) |
| Which term describes any method used to reduce the chance of pregnancy? | (contraception) |
| Give one example of a physical barrier method of contraception. | condom, diaphragm/cap |
| In the menstrual cycle, what usually happens at about day 14? | In the menstrual cycle, what usually happens at about day 14? (ovulation) |
| What change in the concentrations of oestrogen and progesterone causes menstruation? | (Concentrations of both hormones decrease.) |
| How does use of a condom during sexual activity help to reduce the risk of pregnancy? | (prevents sperm reaching the egg) |
| How does the combined contraceptive pill help to reduce the risk of pregnancy? | (one of: contains hormones that prevent ovulation/reduces chance of sperm reaching egg) |
| Name one target organ of insulin that helps to reduce blood glucose concentration. | (muscle/liver) |
| What name is given to the condition in which people cannot control their blood glucose concentration properly? | (diabetes) |
| Which term means maintaining a constant internal environment? | (homeostasis) |
| What effect does eating food have on blood glucose concentration? | (increases) |
| What effect does exercise have on blood glucose concentration? | (decreases) |
| Which hormone(s) control(s) blood glucose concentration? | (insulin, H glucagon) |
| What causes type 1 diabetes? | (no insulin produced) |
| What type of treatment must someone with type 1 diabetes have for the rest of their lives? | (injection of insulin) |
| What causes type 2 diabetes? | (either not enough insulin produced, or insulin target cells do not respond properly) |
| How is type 2 diabetes correlated with body mass? | (Increasing body mass increases the risk of type 2 diabetes.) |
Created by:
Davenant Foundation School
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