B2.1 - Key Words

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Active transport

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14 Terms

1

Active transport

Movement of molecules against their concentration gradient

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2

Cell cycle

The process of cell growth and division

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3

Concentration gradient

Difference in concentration between two regions

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4

Differentiation

Conversion of cell from unspecialised to specialised

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5

Diffusion

Net movement of particles from a place where there is a high concentration, to one where there is a low concentration

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6

DNA replication

Process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules

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7

Meristems

Growing region of a plant

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8

Mitosis

Process by which body cells divide

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9

Osmosis

Diffusion of water molecules from region of high water potential to low water potential through a selectively permeable membrane

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10

Mitosis

Process by which body cells divide

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11

Osmosis

Diffusion of water molecules from region of high water potential to low water potential through a selectively permeable membrane

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12

Specialised

A cell that is adapted to perform a particular function is called a specialised cell

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13

Stem cell

Undifferentiated cell

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14

Water potential

Concentration of free water molecules

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