Key Terms

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Flashcards to remember the key terms
Roman Joseph
Flashcards by Roman Joseph, updated more than 1 year ago
Roman Joseph
Created by Roman Joseph over 1 year ago
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Question Answer
What is the Cell Theory? All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms. The activity of an organism depends on the total activity of independent cells. Energy flow (metabolism and biochemistry) occurs within cells.
What is a Micrograph? A micrograph is a photo or digital image taken through a microscope to show a magnified image of a specimen. While organelles have identifying structures, specific shapes may vary depending on the location of cross-sections.
What is an Organelle? Organelles are structures within a cell that perform specific functions like controlling cell growth and producing energy. Plant and animal cells can contain similar types of organelles.
What is Plasma Membrane? The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface.
What is the Nucleus? A usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell, and contains the chromosomes.
What is the Cell Wall? The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
What is Cytoplasm? The cytoplasm is home to many activities of the cell as it contains molecules, enzymes that are crucial in the break down of the waste. The cytoplasm also assists in metabolic activities. Cytoplasm provides shape to the cell. It fills up the cells thus enabling the organelles to remain in their position.
What is a Prokaryotic Cell? A prokaryotic cell is a type of cell that does not have a true nucleus or membrane-bound organelles.
What is a Eukaryotic Cell? Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organisms. Protozoa, fungi, plants, and animals all have eukaryotic cells. They are classified under the kingdom Eukaryota.
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