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Hormones, Nervous System, Power and the eye on IGCSE level

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Imani :D
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Grade 10 Coordinated Science Quiz

Question 14 of 27 Question 1 of 27

1

In which order does the signal for the reflex arc travel?

Select one of the following:

  • SPINAL CORD to SENSORY NEURONE to STIMULUS

  • RELAY NEURONE to SPINAL CORD to SENSORY NEURONE

  • SENSORY NEURONE to SPINAL CORD to MOTOR NEURONE

  • STIMULUS to MOTOR NEURONE to SPINAL CORD

Explanation

Question 1 of 27 Question 2 of 27

1

In the lighting circuit in a house, how are lamps usually connected, and what is one reason for this?

Select one of the following:

  • PARALLEL - to share out the voltage equally between the lamps

  • PARALLEL - to allow every lamp to have the full voltage supply

  • SERIES - to allow every lamp to have the full voltage supply

  • SERIES - to share out the voltage equally between the lamps

Explanation

Question 19 of 27 Question 3 of 27

1

When the voltage of the supply is reduced, the voltage across the resistor decreases

Select one of the following:

  • True
  • False

Explanation

Question 17 of 27 Question 4 of 27

4

What factors can effect the resistance of a piece of wire?

Select one or more of the following:

  • length of the wire

  • thickness of the wire

  • where the wire is located

  • temperature of the wire

  • material of the wire

Explanation

Question 13 of 27 Question 5 of 27

5

When the eye is focusing on a nearby object:-
Structure 6 () will , allowing for more light to into the eye. Then structure 8 ()

Drag and drop to complete the text.

    contract
    be refracted
    the cilliary muscles
    The cilliary muscles
    not be enetered
    the optic nerve
    enter
    the lens
    relax
    the suspensory ligaments
    the cornea
    the pupil
    the retina
    the iris

Explanation

Question 16 of 27 Question 6 of 27

1

The change in blood glucose concentration can be detected by organ A. If it releases hormone B into the blood, hormone B will convert glucose to glycogen and the concentration of glucose in the blood will decrease. If it releases hormone C into the blood, hormone C will stimulate organ D to convert glycogen to glucose and the blood glucose concentration will increase.

NAME ORGAN A AND HORMONES B AND C

Select one or more of the following:

  • Organ A - PANCREAS
    Hormone B - GLYCOGEN
    Hormone C - INSULIN

  • Organ A - LIVER
    Hormone B - GLYCOGEN
    Hormone C - INSULIN

  • Organ A - PANCREAS
    Hormone B - INSULIN
    Hormone C - GLYCOGEN

  • Organ A - LIVER
    Hormone B - INSULIN
    Hormone C - GLYCOGEN

Explanation

Question 15 of 27 Question 7 of 27

2

Why is glucose converted to glycogen rather than just kept as glucose in the cells

Select one or more of the following:

  • glucose is bad for the human body and must therefore always be converted into glycogen

  • glycogen is insoluble and is therefore not in danger of osmosis

  • glycogen is easier to digest and can therefore speed up digestion

  • glycogen takes up less space and can therefore be stored more easily

Explanation

Question 18 of 27 Question 8 of 27

3

LABEL THE NEURONES IN THE REFLEX ARC DIAGRAM

1
2
3

Drag an answer into the correct orange point.

    relay neurone
    sensory neurone
    motor neurone

Explanation

Question 11 of 27 Question 9 of 27

1

What is the receptor of pressure and temperature detected in the environment?

Select one of the following:

  • Eye

  • Nose

  • Toungue

  • Ear

  • Skin

Explanation

Question 21 of 27 Question 10 of 27

5

Click on each orange point and write the correct answer.

LABEL THE EYE DIAGRAM

give answers without the (ex. tree - correct ex. the tree - incorrect)

1
2
3
4
5
6

Explanation

Question 23 of 27 Question 11 of 27

2

Fill the blank spaces to complete the text.

In bright light the radial muscles of the iris and the circular muscles of the iris

Explanation

Question 8 of 27 Question 12 of 27

1

The suspensory ligaments...

Select one of the following:

  • controls the amount of light entering the eye

  • holds the lens in place

  • pulls the lens for focusing

Explanation

Question 4 of 27 Question 13 of 27

1

Fill the blank space to complete the text.

glands have a gland

Explanation

Question 2 of 27 Question 14 of 27

1

Fill the blank space to complete the text.

glands are found at the base of the brain, produce hormones and are linked by hypothalamuses to the brain

Explanation

Question 20 of 27 Question 15 of 27

1

The pancreas is...

Select one of the following:

  • neither endocrine nor exocrine

  • exocrine

  • both endocrine and exocrine

  • endocrine

Explanation

Question 3 of 27 Question 16 of 27

1

When adrenaline is secreted into the blood...

Select one or more of the following:

  • breathing becomes deeper

  • breathing becomes faster

  • Pupils dilate

  • blood is directed to the gut and away from the liver

  • heart race increases

  • hairs stand on end

  • glycogen is released from the liver

Explanation

Question 12 of 27 Question 17 of 27

1

Fill the blank space to complete the text.

The body must be kept at a constant temperature of degrees celcius

Explanation

Question 9 of 27 Question 18 of 27

2

Name the respons(es) that the body has in reaction to a decrease in temperature

Select one or more of the following:

  • shivering

  • vascoconstriction

  • vascodilation

  • sweating

Explanation

Question 26 of 27 Question 19 of 27

1

What happens when enzymes are in a too cold environment

Select one or more of the following:

  • They escape to be in a warmer environment

  • They denature

  • They freeze and die

  • They work to slow

Explanation

Question 6 of 27 Question 20 of 27

1

homeostasis is the maintenance of a constant internal environment

Select one of the following:

  • True
  • False

Explanation

Question 22 of 27 Question 21 of 27

1

The cilliary muscles..

Select one of the following:

  • hold the lens in place

  • control the amount of light entering the eye

  • pull the light in for focusing

Explanation

Question 7 of 27 Question 22 of 27

1

The cornea

Select one of the following:

  • focuses light onto the retina

  • is a light sensitive layer, sends signals to the optic nerve

  • lets light into the eye and focuses

Explanation

Question 10 of 27 Question 23 of 27

1

The iris

Select one of the following:

  • is a light sensitive layer, sends signals to the optic nerve

  • controls the amount of light entering the eye

  • focuses light onto the retina

Explanation

Question 27 of 27 Question 24 of 27

1

The optic nerve

Select one of the following:

  • controls the amount of light entering the eye

  • sends signals to the brain

  • pulls the lens for focusing

Explanation

Question 24 of 27 Question 25 of 27

1

The pupil...

Select one of the following:

  • lets light into the eye and focuses

  • lets light through to the lens

  • controls the amount of light entering the eye

Explanation

Question 5 of 27 Question 26 of 27

1

The retina

Select one of the following:

  • light sensitive layer, sends signals to the optic nerve

  • controls the amount of light entering the eye

  • lets light into the eye and focuses

Explanation

Question 25 of 27 Question 27 of 27

1

which two parts of the eye work together to focus on objects

Select one of the following:

  • cornea and lens

  • retina and lens

  • pupil and lens

  • iris and lens

Explanation

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