2.1-2.3 Flashcards

1
Q

diffusion

A

the movement of particles from regions of higher density to lower density.

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2
Q

osmosis

A

the diffusion of water through a semipermeable membrane.

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3
Q

passive transport

A

the movement of substances across a cell membrane without the use of energy by the cell.

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4
Q

active transport

A

the movement of the substances across the cell membrane that requires the cell to use energy.

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5
Q

endocytosis

A

the p.rocess by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell

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6
Q

exocytosis

A

the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane

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7
Q

photosynthesis

A

the process by which plants, algae, and some bacteria use sunlight carbon dioxide and water to make food

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8
Q

cellular respiration

A

the process by which cells use oxygen to produce energy from food

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9
Q

fermentation

A

the breakdown of food without the use of oxygen

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10
Q

cell cycle

A

the life cycle of a cell

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11
Q

chromosomes

A

the DNA of a cell is organized into structures

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12
Q

homologous chromosmes

A

chromosomes that have the same sequence of genes and the same structure

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13
Q

mitosis

A

the complicated process of chromosomes seperation

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14
Q

cytokinesis

A

the division of the cytoplasm of a cell

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