Unit 2 Cells Vocabulary

Front

Cell

Back

Basic unit of all life forms

Front

Cell membrane

Back

Thin, flexible barrier that surrounds the cell; regulates what enters and leaves the cell

Front

Cell theory

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Scientific theory stating all living things are made of cells, cell is the basic unit of living things, and all cells come from preexisting cells

Front

Cell wall

Back

Strong, supportive layer around the cell membrane in some cells

Front

Chloroplast

Back

Organelle found in plants that captures solar energy and converts it into chemical energy

Front

Chromosome

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Threadlike structure found in the nucleus that contains genetic information passed down from parents

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Cytoskeleton

Back

Protein filaments in eukaryotic cells that helps with shape, internal organization, and movement

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Diffusion

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Movement of particles across a cell membrane generally from a region of high concentration to low concentration

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Endocytosis

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Process in which cells take in a substance from outside the cells by engulfing them in a vesicle

Front

Endoplasmic reticulum

Back

Organelle in eukaryotic cells where lipids are assembled