Electrical and Chemical Signals

This is a product of the science department of Dartford

Technology College

Question 1

What do we call a signal carried by the nerves in your body?

• Nervous signal

• Electrical impulse

• Data stream

• Signal flow

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Question 2

What do we call the gap between two neurones?

• Synapse

• Junction

• Terminus

• Linkage

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Question 3

What term is used for a loud sound, a hot object, something sharp or a frightening experience?

• Contract

• Synapse

• Stimulus

• Neurone

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Question 4

After a stimulus, the electrical impulse passes up the?

• Relay neurone

• Motor neurone

• Sensory neurone

• Synapse

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Question 5

What does a CNS stand for?

• Central News Section

• Central Nervous System

• Central Nerve Signal

• Central News Signal

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Question 6

What do we call the following; stimulus, sensory neurone, relay neurone, motor neurone, effectors?

• Reflex set

• Reflex list

• Reflex arc

• Reflex term

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Question 7

What do we call the chemical messengers of the body?

• Hormones

• Vitamins

• Cholesterol

• Peptides

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Question 8

The hormone insulin controls the level of sugar in the blood but where is it made?

• Thyroid

• Pancreas

• Kidney

• Stomach

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Question 9

Give the name of the male sex hormone?

• Oestrogen

• Progesterone

• Adrenaline

• Testosterone

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Question 10

A blood clot in the brain which causes brain cells to die is called a … ?

• Tumour

• Cancer

• Stroke

• Burst

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Question 11

Part of the eye that controls the amount of light that enters?

• Cornea

• Retina

• Lens

• Iris

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Question 12

What do we call the inner lining of the eye that detects light and contains rods and cones?

• Cornea

• Lens

• Pupil

• Retina

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Question 13

The cones in the retina are for colour vision. What are rods for?

• Strong light intensity

• Low light intensity

• Total darkness

• Infra-red

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Question 14

What do we call the disease where the body is unable to control the level of sugar in the blood?

• Malaria

• Dwarfism

• Diabetes

• Typhoid

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Question 15

Select the hormone responsible for maintaining the uterus lining after ovulation?

• Oestrogen

• Testosterone

• Adrenaline

• Progesterone

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Question 16

What organelle of the body produces hormones?

• Duct

• Gland

• Vesicle

• Epithelia

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Question 17

Select the word that means the lens can change its thickness to focus on near and far objects?

• Adjustment

• Apparent

• Accommodation

• Accolade

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Question 18

What do we call the release of an egg from the ovary?

• Oviparous

• Ovulation

• Ovarian

• Overburden

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Question 19

A useful microorganism found in the stomach. Others can cause disease?

• Fungi

• Nematodes

• Bacteria

• Virus

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Question 20

Artificial insemination means to insert sperm into a woman from a donor to?

• Make a robot

• Fertilise an egg

• To produce more sperm

• To release more eggs

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