Question 1
Question
In which order does the signal for the reflex arc travel?
Answer
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RELAY NEURONE to SPINAL CORD to SENSORY NEURONE
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SENSORY NEURONE to SPINAL CORD to MOTOR NEURONE
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SPINAL CORD to SENSORY NEURONE to STIMULUS
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STIMULUS to MOTOR NEURONE to SPINAL CORD
Question 2
Question
In the lighting circuit in a house, how are lamps usually connected, and what is one reason for this?
Answer
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PARALLEL - to allow every lamp to have the full voltage supply
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PARALLEL - to share out the voltage equally between the lamps
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SERIES - to allow every lamp to have the full voltage supply
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SERIES - to share out the voltage equally between the lamps
Question 3
Question
When the voltage of the supply is reduced, the voltage across the resistor decreases
Question 4
Question
What factors can effect the resistance of a piece of wire?
Question 5
Question
When the eye is focusing on a nearby object:-
Structure 6 ([blank_start]the suspensory ligaments[blank_end]) will [blank_start]relax[blank_end], allowing for more light to [blank_start]be refracted[blank_end] into the eye. Then structure 8 ([blank_start]The cilliary muscles[blank_end]) [blank_start]contract[blank_end]
Answer
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the suspensory ligaments
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the optic nerve
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the retina
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the iris
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the cilliary muscles
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relax
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be refracted
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not be enetered
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enter
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The cilliary muscles
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the pupil
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the cornea
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the lens
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contract
Question 6
Question
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
Answer
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Organ A - PANCREAS
Hormone B - GLYCOGEN
Hormone C - INSULIN
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Organ A - PANCREAS
Hormone B - INSULIN
Hormone C - GLYCOGEN
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Organ A - LIVER
Hormone B - GLYCOGEN
Hormone C - INSULIN
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Organ A - LIVER
Hormone B - INSULIN
Hormone C - GLYCOGEN
Question 7
Question
Why is glucose converted to glycogen rather than just kept as glucose in the cells
Answer
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glycogen takes up less space and can therefore be stored more easily
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glycogen is easier to digest and can therefore speed up digestion
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glycogen is insoluble and is therefore not in danger of osmosis
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glucose is bad for the human body and must therefore always be converted into glycogen
Question 8
Question
LABEL THE NEURONES IN THE REFLEX ARC DIAGRAM
Answer
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sensory neurone
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relay neurone
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motor neurone
Question 9
Question
What is the receptor of pressure and temperature detected in the environment?
Answer
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Toungue
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Skin
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Eye
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Nose
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Ear
Question 10
Question
LABEL THE EYE DIAGRAM
give answers without the (ex. tree - correct ex. the tree - incorrect)
Answer
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iris
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lens
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suspensory ligaments
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optic nerve
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retina
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cornea
Question 11
Question
In bright light the radial muscles of the iris [blank_start]____[blank_end] and the circular muscles of the iris [blank_start]_____[blank_end]
Question 12
Question
The suspensory ligaments...
Question 13
Question
[blank_start]_________[blank_end]glands have a gland
Question 14
Question
[blank_start]______[blank_end] glands are found at the base of the brain, produce hormones and are linked by hypothalamuses to the brain
Question 15
Question
The pancreas is...
Question 16
Question
When adrenaline is secreted into the blood...
Question 17
Question
The body must be kept at a constant temperature of [blank_start]___[blank_end] degrees celcius
Question 18
Question
Name the respons(es) that the body has in reaction to a decrease in temperature
Answer
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sweating
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vascodilation
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shivering
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vascoconstriction
Question 19
Question
What happens when enzymes are in a too cold environment
Question 20
Question
homeostasis is the maintenance of a constant internal environment
Question 21
Question
The cilliary muscles..
Question 22
Answer
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is a light sensitive layer, sends signals to the optic nerve
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lets light into the eye and focuses
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focuses light onto the retina
Question 23
Answer
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controls the amount of light entering the eye
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is a light sensitive layer, sends signals to the optic nerve
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focuses light onto the retina
Question 24
Answer
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sends signals to the brain
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pulls the lens for focusing
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controls the amount of light entering the eye
Question 25
Answer
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lets light through to the lens
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controls the amount of light entering the eye
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lets light into the eye and focuses
Question 26
Answer
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light sensitive layer, sends signals to the optic nerve
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lets light into the eye and focuses
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controls the amount of light entering the eye
Question 27
Question
which two parts of the eye work together to focus on objects
Answer
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cornea and lens
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pupil and lens
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retina and lens
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iris and lens