Bio Flashcards

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0
Q

Passive Transport

A

Movement of bio chemicals and other atomic or molecules substances across the cell membrane and does not require energy

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1
Q

Active Transport

A

Movement of ions or molecules across a cell membrane from low to high concentration and requires energy

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2
Q

Phagocyte

A

Any cell that ingest and destroys foreign particles, bacteria and cell debris

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3
Q

Phagocytosis

A

Ingestion of bacteria and other material

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4
Q

Pinocytosis

A

Transport of fluid into a cell by means of local infoldings by the cell membrane

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5
Q

Endocytosis

A

Transport of solid matter or liquid into a cell

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6
Q

Exocytosis

A

Transport of material out of a cell

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7
Q

Contractile Vacuole

A

Membrane-enveloped cellular organelle, found in many microorganisms that periodically expands, filling with water then contracts to the cell exterior

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8
Q

Sodium potassium pump

A

Process of moving sodium and potassium ions across the cell membrane

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9
Q

Facilitated Diffusion

A

Process by which substances are transported across the cell membrane

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10
Q

Osmosis

A

The diffusion of fluids through membranes or porous particles

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11
Q

Ion channel

A

Pore forming membrane proteins, functions include establishing a resting membrane proteins

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12
Q

Diffusion

A

An intermingling of molecules,ions,etc. resulting from random thermal agitation

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13
Q

Carrier protein

A

Carry substances across either compartment barriers inside cells or through the cell membrane

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14
Q

Hypotonic

A

A solution of lower osmotic pressure than another solution with which is compared(opposed to hypertonic)

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15
Q

Hypertonic

A

A solution of higher osmotic pressure than another with which ins compare(opposed to hypotonic)

16
Q

Isotonic

A

Pertaining to solutions characterized by equal osmotic pressure

17
Q

Cytolysis

A

The dissolution or degeneration of cells

18
Q

Plasmolysis

A

Contraction of protoplasm in a living cell when water is removed by exomosis

19
Q

Concentration gradient

A

Dissolved substance in a solution between a region of high density and one of lower density

20
Q

Vesicles

A

Small bladder like cavity, especially one filled with fluid

21
Q

Equilibrium

A

State of rest or balance due to the equal action of opposing forces

22
Q

Turgor Pressure

A

Pressure extend on a plant cell by water passing into the cell by osmosis