Cell Theory Intro Flashcard

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What is Cell Theory?

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Cell Theory is a fundamental concept in biology that states: 1) All living things are made of cells, 2) Cells are the basic unit of structure and function in living things, 3) All cells come from existing cells.

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What are prokaryotic cells?

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Prokaryotic cells are simple, single-celled organisms that lack a nucleus and membrane-bound organelles. They are typically smaller than eukaryotic cells and include bacteria.

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What are eukaryotic cells?

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Eukaryotic cells are complex cells that contain a nucleus and membrane-bound organelles. They can be single-celled or multicellular organisms, such as plants, animals, and fungi.

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What is the function of ribosomes?

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Ribosomes are cellular structures that synthesize proteins by translating messenger RNA (mRNA) into polypeptide chains.

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What is the role of the cell membrane?

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The cell membrane is a protective barrier that surrounds the cell, controlling the movement of substances in and out of the cell.

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What is the difference between plant and animal cells?

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Plant cells have a cell wall, chloroplasts for photosynthesis, and large central vacuoles, while animal cells do not have these structures.

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What is the function of chloroplasts?

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Chloroplasts are organelles found in plant cells that conduct photosynthesis, converting light energy into chemical energy in the form of glucose.

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What is cytoplasm?

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Cytoplasm is the jelly-like substance within a cell that contains organelles and is the site of many metabolic processes.

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What is a cell wall?

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A cell wall is a rigid outer layer found in plant cells, fungi, and some bacteria that provides structural support and protection.

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What is the nucleus?

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The nucleus is a membrane-bound organelle that contains the cell's genetic material (DNA) and controls cellular activities.