Cell Biology Flashcards

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Cell membrane

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A double-layered membrane that surrounds the cell, also called the plasma membrane. It regulates what enters and leaves the cell.

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Cell wall

Back

The rigid, porous outer layer of a plant cell.

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Centriole

Back

A bundle of microtubules that helps organize the movement of chromosomes during cell division.

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Chloroplast

Back

An organelle that converts the Sun's radiant energy into chemical energy through photosynthesis.

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Cytoplasm

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A jelly-like substance, composed mainly of water, occupying most of the space between the cell membrane and the nucleus.

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Endoplasmic Reticulum

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A network of passageways where chemical compounds are manufactured, processed, and transported.

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Golgi apparatus

Back

A stack of membranes that collects, modifies, and packages chemical compounds.

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Lysosome

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A small sac, or vesicle, that contains digestive chemicals.

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Mitochondria

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Organelles that use oxygen to convert nutrients into energy that can be used by the cell.

Front

Nuclear membrane

Back

A double-layered membrane that surrounds and protects the nucleus.