in which part of the cell is energy released during respiration ?
mitochondris
1 of 15
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 .
2 of 15
why do muscles cells need alot of mitochondria ?
mitochondria release engery which muscles need for movement.
3 of 15
what determines the net movement of the particals across a cell membrane ?
the concentration of either side of the membrane.
4 of 15
what deos glandular tissue produce?
enzymes or hormones
5 of 15
where is soluble food absorbed ?
in the small intestines
6 of 15
where is engery from photosynesis come from ?
sunlight although articial light can also be used
7 of 15
why do enzymes reactions slow down ?
when the tempreture fails the enzymes work slower .
8 of 15
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.
9 of 15
name three substances used form Storage in plants ?
starch , fats and oils
10 of 15
what factors must be controlled in a greenhouse to improve growth ?
light , tempreture and carbon dioxide
11 of 15
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.
12 of 15
what is a quardat ?
a square frame that may be divided into grid
13 of 15
how can you make sure an investigation is valid ?
only the independent variable should effect the results , all other variables must be controlled
14 of 15
what are proteins made of ?
long chains of amino acud
15 of 15
Other cards in this set
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
Card 4
Front
what determines the net movement of the particals across a cell membrane ?
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