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Bio- Cell Vocab.

QuestionAnswer
Cell The smallest unit that can preform all life processes
Cell Theory The theory that states that all living things are made up of one or more cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells
Plasma Membrane The cell's outer boundary
Cytoplasm The region of the cell with in the membrane that includes the fluid, cytoskeleton, and all of the organelles except the nucleus
Cytocol The soluble portion of the cytoplasm, which includes molecules and small particles, but not the organelles covered with membranes
Nucleus In a eukaryotic cell, a membrane bound organelle that contains the cell's DNA and that has a role in processes
Prokaryote A single celled organism that has no nucleus and no membrane bound organelles
Eukaryote An organism made up of cells that have a nucleus enclosed by a membrane, multiple chromosomes, and a mitotic cycle
Organelle One of the small bodies that are found in the cytoplasm of a cell and that are specialized to preform a specific function
Tissue A collection of specialized cells and cell products that preform a specific function
Organ A collection of tissues that carry out a specialized function of the body
Organ System A group of specialized parts that carry out a certain function in the organism
Phospholipid Bilayer A double layer of phospholipids that make up plasma and organelle membranes
Chromosome In a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein
Neuclear Envelope The double membrane that surrounds the nucleus of a eukaryotic cell
Neucleolus The part of the eukaryotic nucleus where rRNA is synthesized
Ribosome A cell organelle composed of RNA and protein
Mitochondrion In eukaryotic cells, the cell organelle that's surrounded by two membranes and that's the site of cellular respiration, which produces ATP
Endoplasmic Reticulum A system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins in the production of lipids
Golgi Apparatus Modifies cellular products and prepares them for export
Lysosome A cell organelle that contains digestive enzymes and that buds from the Golgi Apparatus
Cytoskeleton The cytoplasmic network of protein filaments and tubes that plays an essential role in the cell movement, shape, and division
Centriole An organelle that's composed of two short microtubules at right angles to each other and that has an active role in mitosis
Central Vacule In some protists and in most plant cells, a large, fluid-filled organelle that stores water, enzymes, metabolic wastes, and other materials
Plastid An organelle of plant cells that contain specific substances and preforms specific functions for the cell
Chloroplast An organelle found in plant and algae cells where photosynthesis occurs
Chlorophyll A green pigment that's present in most plant cells that gives plants their green color, and that reacts with sunlight, CO2, and H2O to form carbohydrates
Cell Wall A rigid structure that surrounds the cell membrane and provides support to the cell
Created by: archergirl