Molecules or ions are carried through membranes by other molecules
from regions of lower concentration toward regions of higher
concentration. Requires energy.
2. Molecules are forced from regions of higher
pressure to regions of lower pressure. Requires no energy.
3. The cell organelle that releases energy from
food molecules and transform energy into a usable form. Site of
4. Molecules moved through a membrane by carrier
molecules from a region of higher concentration to one of lower
concentration. Requires no energy.
5. Water molecules moving from region of higher
concentration toward regions of lower concentration through a
selectively permeable membrane. Requires no energy.
6. This structure is the site of protein
7. A very generic term used to describe a
movement through a cell membrane that does not require cellular
energy - an example is diffusion.
8. Molecules moving from regions of higher
concentration towards regions of lower concentration. Requires no
9. A very generic term used to describe a
movement through a cell membrane that does require cellular energy -
an example is active transport.
10. This structure maintains integrity of the
cell and controls the passage of materials into and out of the cell -
made primarily of phospholipids.
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