Question Answer
cell theory theory that states all organisms are made of cells, all cells are produced by other living cells, and the cell is the most basic unit of life.
cytoplasm jellylike substance inside cells that contains molecules and in some cells organelles
organelle membrane-bound structure that is specialized to perform a distinct process within a cell
prokaryotic cell cell that does not have a nucleus or membrane-bound organelles
eukaryotic cell cell that has a nucleus and other membrane-bound organelles
cytoskeleton network of protein inside a eukaryotic cell that supports and shapes the cell
nucleus organelle composed of a double membrane that acts as a storehouse for most of a cell's DNA
endoplasmic reticulum interconnected network of thin, folded membranes that produce, process, and distribute proteins
ribosome organelle that links amino acids together to form proteins
Golgi apparatus stack of flat, membrane-enclosed spaces containing enzymes that process, sort, and deliver proteins
vesicle small organelle that contains and transports materials within the cytoplasm
mitochondrion bean-shaped organelle that supplies energy to the cell and has its own ribosomes and DNA
vacuole organelle that is used to store materials, such as water, food, or enzymes, that are needed by the cell
lysosome organelle that contains enzymes.
centriole small cylinder-shaped organelle made of protein tubes arranged in a circle, aids mitosis
cell wall rigid structure that gives protection, support, and shape to the cells in plants, fungi, and bacteria
chloroplast organelle composed of numerous membranes that are used to convert solar energy into chemical energy; contains chlorophyll
cell membrane double layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of the cell
phospholipid molecule that forms a double-layered cell membrane; consists of glycerol, a phosphate group, and two fatty acids
fluid mosaic model model that describes the arrangement and movement of the molecules that make up a cell membrane
selective permeability condition or quality of allowing some, but not all, materials to cross a barrier or membrane
receptor protein that detects a signal molecule and preforms and action in response
Chapter 3 Terms

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