The Cell Flashcards

0
Q

_______: which contains cytosol and organelles.
_______: which contains most of the cells genes, located on chromosomes.
______: which is composed of lipid bilayer and membrane proteins.

A

1) cytoplasm
2) Nucleus
3) plasma membrane

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1
Q

Define what a cell is:

A

Living structural and functional units enclosed by a membrane.

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2
Q

What process moves a substance down the concentration gradient using its own kinetic energy?

A

Passive transport

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3
Q

Goes against concentration gradient and uses ATP and the energy stored is NA and H.

A

Active transport.

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4
Q

What is diffusion?

A

A passive process when the molecules move from high to low concentration until equilibrium is reached.

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5
Q

What is osmosis?

A

Movement of water through a selectively permeable membrane from a high to low concentration.

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6
Q

Tonicity is what?

A

A cell changing shape because of water.

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7
Q

In a hypotonic solution the cell ruptures and is called ?

A

Lysis

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8
Q

Hypertonic solutions cause cells to shrink and that is called?

A

Crenation

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