Organelles Flashcards

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Cell Membrane

Back

A thin, flexible barrier that surrounds the cell; it controls what enters and leaves the cell.

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Plasma Membrane

Back

Another name for the cell membrane.

Front

Semi-permeable

Back

Property of membranes that allows only certain substances to pass through while blocking others.

Front

Cytoplasm

Back

The jelly-like fluid inside the cell in which organelles are suspended.

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Nucleus

Back

The control center of a eukaryotic cell that contains DNA.

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DNA

Back

The molecule that stores genetic information used to make proteins and direct cell activities.

Front

Ribosomes

Back

Small structures that build proteins by linking amino acids, based on instructions from DNA.

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Protein

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A macromolecule made of amino acids that performs many functions such as structure, enzymes, transport, and signaling.

Front

Rough Endoplasmic Reticulum

Back

Network of membranes covered with ribosomes; makes and processes proteins.

Front

Smooth Endoplasmic Reticulum

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Network of membranes without ribosomes; makes lipids and detoxifies harmful substances.