Supplemental Aid Flashcard -Readiness Only

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What is Passive Transport?

Back

The movement of substances across a cell membrane without the use of energy, typically through diffusion or facilitated diffusion.

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What is Active Transport?

Back

The movement of substances across a cell membrane using energy, often against a concentration gradient.

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Define Diffusion.

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

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What is Facilitated Diffusion?

Back

A type of passive transport that uses protein channels to help move substances across the cell membrane.

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What is a Protein Pump?

Back

A type of active transport mechanism that moves ions or molecules across a membrane against their concentration gradient using energy.

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What is Endocytosis?

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The process by which a cell engulfs material from the outside environment, forming a vesicle.

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Define Enzyme.

Back

A protein that acts as a catalyst to speed up chemical reactions in the body.

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What is a Substrate?

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The reactant on which an enzyme works.

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What does Homozygous mean?

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Having two identical alleles for a particular gene.

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What does Heterozygous mean?

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Having two different alleles for a particular gene.