Test

Question 1

What is homeostasis

Answer 1

The regulation of international conditions inside cells and organisms to create the optimum conditions for biological function

Question 2

What is a receptor

Answer 2

Detects stimulus

Question 3

What is a receptor

Answer 3

Detects stimulus

Question 4

Effectors

Answer 4

Produce a response such as a muscle contraction

Question 5

Effectors

Answer 5

Produce a response such as a muscle contraction

Question 6

Coordination centres

Answer 6

The brain spinal cord or glands these receive information from the receptors and process information and give a response

Question 7

Reflex actions

Answer 7

Stimulus receptor sensory neurone motor neurone effector and response

Question 8

Reflex actions

Answer 8

Stimulus receptor sensory neurone motor neurone effector and response

Question 9

What is a synapse

Answer 9

It is a gap between where two neurones meet

Question 10

What are the 4 main parts of the brain

Answer 10

Cerebellum cerebral cortex medulla and hypothalamus

Question 11

What are the 4 main parts of the brain

Answer 11

Cerebellum cerebral cortex medulla and hypothalamus

Question 12

What does the cerebral cortex do

Answer 12

It controls intelligence personality conscious thought and high level functions such as language and verbal memory

Question 13

What does the cerebral cortex do

Answer 13

It controls intelligence personality conscious thought and high level functions such as language and verbal memory

Question 14

What does the cerebellum do

Answer 14

It controls balance coordination of movement and muscular activity

Question 15

What does the medulla do

Answer 15

Controls unconscious activity such as heart rate and breathing

Question 16

What does the medulla do

Answer 16

Controls unconscious activity such as heart rate and breathing

Question 17

What does the hypothalamus do

Answer 17

Regulating centre for temperature and water balance

Question 18

Electrical stimulation

Answer 18

Scientists have asked patients to describe what they experience the scientist stimulated different parts of the brain with weak electrical currents

Question 19

MRI scans

Answer 19

MRI stands for magnetic residence imaging use strong magnetic fields and radio waves to show details of brain structures and functions

Question 20

Cornea

Answer 20

Reflect light Bends as it enters the eye

Question 21

Iris

Answer 21

Controls how much light enters the pupil

Question 22

Iris

Answer 22

Controls how much light enters the pupil

Question 23

Lens

Answer 23

Further and reflect light to focus on the retina

Question 24

Lens

Answer 24

Further and reflect light to focus on the retina

Question 25

Retina

Answer 25

Contains the light receptors

Question 26

Optic nerve

Answer 26

Carries impulses between the eye and the brain

Question 27

Sclera

Answer 27

Tough white outer layer of the eye it helps protect the eye from injury

Question 28

Sclera

Answer 28

Tough white outer layer of the eye it helps protect the eye from injury

Question 29

In bright light

Answer 29

Radial muscle is relaxed circular muscles of iris contracted do less light enters eye

Question 30

In dim light

Answer 30

Radial muscles of Iris contracted circular muscles of Iris relaxed dilated pupil so more light enters

Question 31

I’f object is near the eye does what

Answer 31

Ciliary muscles contract, suspense, ligaments, slacken or loosen muscle tension low lens shape fat light is reflected strongly

Question 32

I’f object is near the eye does what

Answer 32

Ciliary muscles contract, suspense, ligaments, slacken or loosen muscle tension low lens shape fat light is reflected strongly

Question 33

If object is distant the eye does what

Answer 33

If object is distant ciliary muscles relax suspensory, ligaments Tighten muscle tension is high lens shape thin light is only reflected slightly

Question 34

How can myopia be cured?

Answer 34

Concave lens

Question 35

How can hyperopia be cured?

Answer 35

Convex lens