B2

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in which part of the cell is energy released during respiration ?
mitochondris
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why is it possible to see a bacterial colony but not a sinlge bacterium ?
one bacterium is very tiny , many bacteria massed in colony can be seen .
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why do muscles cells need alot of mitochondria ?
mitochondria release engery which muscles need for movement.
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what determines the net movement of the particals across a cell membrane ?
the concentration of either side of the membrane.
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what deos glandular tissue produce?
enzymes or hormones
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where is soluble food absorbed ?
in the small intestines
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where is engery from photosynesis come from ?
sunlight although articial light can also be used
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why do enzymes reactions slow down ?
when the tempreture fails the enzymes work slower .
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whata is meant by the term 'dependent variable '?
1)when the tempreture fails the enzymes slow down. 2) the variable that is being mesured - the mmeasurements depends on what is done with the independent variable.
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name three substances used form Storage in plants ?
starch , fats and oils
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what factors must be controlled in a greenhouse to improve growth ?
light , tempreture and carbon dioxide
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why are there so few animals living in very cold conditions such as the arctic ?
very small plants grow there - those that do are very small , so there is little food for animals.
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what is a quardat ?
a square frame that may be divided into grid
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how can you make sure an investigation is valid ?
only the independent variable should effect the results , all other variables must be controlled
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what are proteins made of ?
long chains of amino acud
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Card 2

Front

why is it possible to see a bacterial colony but not a sinlge bacterium ?

Back

one bacterium is very tiny , many bacteria massed in colony can be seen .

Card 3

Front

why do muscles cells need alot of mitochondria ?

Back

Preview of the front of card 3

Card 4

Front

what determines the net movement of the particals across a cell membrane ?

Back

Preview of the front of card 4

Card 5

Front

what deos glandular tissue produce?

Back

Preview of the front of card 5
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