Cell History & Cell Structures

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What is the Endosymbiotic Theory?

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The Endosymbiotic Theory proposes that certain organelles, like mitochondria and chloroplasts, originated as free-living bacteria that were engulfed by ancestral eukaryotic cells, leading to a symbiotic relationship.

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What is the basic unit of life?

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The basic unit of life is the Cell, which is the smallest structural and functional unit of an organism.

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What structures are unique to plant cells?

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Plant cells contain chloroplasts for photosynthesis, a large central vacuole for storage, and a rigid outer cell wall.

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What is the function of the Golgi apparatus?

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The Golgi apparatus is responsible for packaging and transporting proteins and other materials in and out of the cell.

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What type of organism is classified as prokaryotic?

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Bacteria are the only type of prokaryotic organisms, characterized by the absence of a nucleus.

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What is the Cell Theory?

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The Cell Theory states that all living organisms are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells.

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What is the function of chloroplasts?

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Chloroplasts are organelles in plant cells that conduct photosynthesis, converting light energy into chemical energy.

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What is the role of the cell membrane?

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The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.

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What are organelles?

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Organelles are specialized structures within a cell that perform distinct processes, such as energy production or protein synthesis.

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What is the difference between prokaryotic and eukaryotic cells?

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Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and various organelles.