Quiz
Grade 10 Coordinated Science Quiz
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Perguntas do quiz (27)
1In which order does the signal for the reflex arc travel?
- ARELAY NEURONE to SPINAL CORD to SENSORY NEURONE
- BSENSORY NEURONE to SPINAL CORD to MOTOR NEURONE
- CSPINAL CORD to SENSORY NEURONE to STIMULUS
- DSTIMULUS to MOTOR NEURONE to SPINAL CORD
2In the lighting circuit in a house, how are lamps usually connected, and what is one reason for this?
- APARALLEL - to allow every lamp to have the full voltage supply
- BPARALLEL - to share out the voltage equally between the lamps
- CSERIES - to allow every lamp to have the full voltage supply
- DSERIES - to share out the voltage equally between the lamps
3When the voltage of the supply is reduced, the voltage across the resistor decreases
- AVerdadeiro
- BFalso
4What factors can effect the resistance of a piece of wire?
- Atemperature of the wire
- Bmaterial of the wire
- Cthickness of the wire
- Dlength of the wire
- Ewhere the wire is located
5When 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]
- Athe suspensory ligaments
- Bthe optic nerve
- Cthe retina
- Dthe iris
- Ethe cilliary muscles
- Frelax
- Gbe refracted
- Hnot be enetered
- Ienter
- JThe cilliary muscles
- Kthe pupil
- Lthe cornea
- Mthe lens
- Ncontract
6The 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- AOrgan A - PANCREAS
Hormone B - GLYCOGEN
Hormone C - INSULIN - BOrgan A - PANCREAS
Hormone B - INSULIN
Hormone C - GLYCOGEN - COrgan A - LIVER
Hormone B - GLYCOGEN
Hormone C - INSULIN - DOrgan A - LIVER
Hormone B - INSULIN
Hormone C - GLYCOGEN
- AOrgan A - PANCREAS
7Why is glucose converted to glycogen rather than just kept as glucose in the cells
- Aglycogen takes up less space and can therefore be stored more easily
- Bglycogen is easier to digest and can therefore speed up digestion
- Cglycogen is insoluble and is therefore not in danger of osmosis
- Dglucose is bad for the human body and must therefore always be converted into glycogen
8LABEL THE NEURONES IN THE REFLEX ARC DIAGRAM
- Asensory neurone
- Brelay neurone
- Cmotor neurone
9What is the receptor of pressure and temperature detected in the environment?
- AToungue
- BSkin
- CEye
- DNose
- EEar
10LABEL THE EYE DIAGRAM
give answers without the (ex. tree - correct ex. the tree - incorrect)
- Airis
- Blens
- Csuspensory ligaments
- Doptic nerve
- Eretina
- Fcornea
11In bright light the radial muscles of the iris [blank_start]____[blank_end] and the circular muscles of the iris [blank_start]_____[blank_end]
- Arelax
- Bcontract
12The suspensory ligaments...
- Acontrols the amount of light entering the eye
- Bpulls the lens for focusing
- Cholds the lens in place
13[blank_start]_________[blank_end]glands have a gland
- Aexocrine
14[blank_start]______[blank_end] glands are found at the base of the brain, produce hormones and are linked by hypothalamuses to the brain
- APituitary
15The pancreas is...
- Aendocrine
- Bexocrine
- Cboth endocrine and exocrine
- Dneither endocrine nor exocrine
16When adrenaline is secreted into the blood...
- APupils dilate
- Bheart race increases
- Cglycogen is released from the liver
- Dblood is directed to the gut and away from the liver
- Ebreathing becomes deeper
- Fbreathing becomes faster
- Ghairs stand on end
17The body must be kept at a constant temperature of [blank_start]___[blank_end] degrees celcius
- A37
18Name the respons(es) that the body has in reaction to a decrease in temperature
- Asweating
- Bvascodilation
- Cshivering
- Dvascoconstriction
19What happens when enzymes are in a too cold environment
- AThey denature
- BThey work to slow
- CThey freeze and die
- DThey escape to be in a warmer environment
20homeostasis is the maintenance of a constant internal environment
- AVerdadeiro
- BFalso
21The cilliary muscles..
- Apull the light in for focusing
- Bcontrol the amount of light entering the eye
- Chold the lens in place
22The cornea
- Ais a light sensitive layer, sends signals to the optic nerve
- Blets light into the eye and focuses
- Cfocuses light onto the retina
23The iris
- Acontrols the amount of light entering the eye
- Bis a light sensitive layer, sends signals to the optic nerve
- Cfocuses light onto the retina
24The optic nerve
- Asends signals to the brain
- Bpulls the lens for focusing
- Ccontrols the amount of light entering the eye
25The pupil...
- Alets light through to the lens
- Bcontrols the amount of light entering the eye
- Clets light into the eye and focuses
26The retina
- Alight sensitive layer, sends signals to the optic nerve
- Blets light into the eye and focuses
- Ccontrols the amount of light entering the eye
27which two parts of the eye work together to focus on objects
- Acornea and lens
- Bpupil and lens
- Cretina and lens
- Diris and lens
Informações
- Descrição
- Hormones, Nervous System, Power and the eye on IGCSE level
- Autor
- Imani :D
- Idioma
- English
- Visualizações
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