2939158
Frage 1
Frage
In which order does the signal for the reflex arc travel?
Antworten
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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
Frage 2
Frage
In the lighting circuit in a house, how are lamps usually connected, and what is one reason for this?
Antworten
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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
Frage 3
Frage
When the voltage of the supply is reduced, the voltage across the resistor decreases
Antworten
- True
- False
Frage 4
Frage
What factors can effect the resistance of a piece of wire?
Antworten
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temperature of the wire
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material of the wire
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thickness of the wire
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length of the wire
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where the wire is located
Frage 5
Frage
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]
Antworten
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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
Frage 6
Frage
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
Antworten
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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
Frage 7
Frage
Why is glucose converted to glycogen rather than just kept as glucose in the cells
Antworten
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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
Frage 8
Frage
LABEL THE NEURONES IN THE REFLEX ARC DIAGRAM
Antworten
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sensory neurone
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relay neurone
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motor neurone
Frage 9
Frage
What is the receptor of pressure and temperature detected in the environment?
Antworten
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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
Frage 10
Frage
LABEL THE EYE DIAGRAM
give answers without the (ex. tree - correct ex. the tree - incorrect)
Antworten
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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
Frage 11
Frage
In bright light the radial muscles of the iris [blank_start]____[blank_end] and the circular muscles of the iris [blank_start]_____[blank_end]
Antworten
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relax
-
contract
Frage 12
Frage
The suspensory ligaments...
Antworten
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controls the amount of light entering the eye
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pulls the lens for focusing
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holds the lens in place
Frage 13
Frage
[blank_start]_________[blank_end]glands have a gland
Antworten
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exocrine
Frage 14
Frage
[blank_start]______[blank_end] glands are found at the base of the brain, produce hormones and are linked by hypothalamuses to the brain
Antworten
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Pituitary
Frage 15
Frage
The pancreas is...
Antworten
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endocrine
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exocrine
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both endocrine and exocrine
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neither endocrine nor exocrine
Frage 16
Frage
When adrenaline is secreted into the blood...
Antworten
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Pupils dilate
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heart race increases
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glycogen is released from the liver
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blood is directed to the gut and away from the liver
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breathing becomes deeper
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breathing becomes faster
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hairs stand on end
Frage 17
Frage
The body must be kept at a constant temperature of [blank_start]___[blank_end] degrees celcius
Antworten
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37
Frage 18
Frage
Name the respons(es) that the body has in reaction to a decrease in temperature
Antworten
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sweating
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vascodilation
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shivering
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vascoconstriction
Frage 19
Frage
What happens when enzymes are in a too cold environment
Antworten
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They denature
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They work to slow
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They freeze and die
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They escape to be in a warmer environment
Frage 20
Frage
homeostasis is the maintenance of a constant internal environment
Antworten
- True
- False
Frage 21
Frage
The cilliary muscles..
Antworten
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pull the light in for focusing
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control the amount of light entering the eye
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hold the lens in place
Frage 22
Frage
The cornea
Antworten
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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
Frage 23
Frage
The iris
Antworten
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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
Frage 24
Frage
The optic nerve
Antworten
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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
Frage 25
Frage
The pupil...
Antworten
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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
Frage 26
Frage
The retina
Antworten
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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
Frage 27
Frage
which two parts of the eye work together to focus on objects
Antworten
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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
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