[ Homework Help ] Open Question : biology. this test determines if i pass or not! so plz help!!!!!!?

1)if a cell were a car, the cell membrane would be the
a) tires
b) shifts
c) engine
d) door
2) diffusion is when
a)food coloring is mixed with water
b)the lysosome moves into a vacuole of a plant cell
c)a molecule is too big to pass throught a membrane
d)molecules move from an area of higher concentration to lower
3)_________ is when markers on the membrane attach to the needed molecules to bring it inside the cell
a)osmosis
b)active transport
c)facilitated diffusion
d)photosynthesis
4)What cells do not have a nucleus?
a)prokaryotes
b)eukaryotes
c)kidney cells
d)plant cells
5)What two organelles do plants have that animals don’t?
a)mitochondria,ribosomes
b)cell wall, nucleus
c)chloroplasts,cell wall
d)chloroplasts,mitochondria

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Author: Victor on February 4, 2010
Category: General
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