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24 Cards in this Set
- Front
- Back
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centriole
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found in the cells of animals and some algae and fungi; two pairs of centrioles play an important role in cell reproduction.
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chloroplast
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double-walled organelle found in plants and some algae; functions in photosynthesis to trap light and energy.
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chromatin
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dense mass of material within the nucleus that is composed of individual chromosomes.
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chromosome
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structure that carries the gens; composed of proteins and DNA
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cilia
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flexible projections extending outward from a cell that enable locomotion by whiplike motion; Paramecium move by the motion of cilia.
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cytoplasm
Marianne Flakk |
substance contained by living cells that is composed of a complex mixture of enzymes, sugars, and amino acids; these substances are constantly involved in the chemical reactions
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endoplasmic reticulum
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network of interconnected structures found in all eukaryotes; functions include intracular transport of preoteins and the breakdown of harmful substances
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eukaryote
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cell containing a nuclear membrane and a membrane-bound nucleus; the vast majority of living organisms
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flagella
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long, whiplike strands extending from a cell that enable cell locomotion
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Golgi body
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flattened, saclike organelle that functions as a processing, packaging, and delivery system in eukaryotes
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lysosome
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organelle containing digestive enzymes that break down food and digests worn out cell parts
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metabolism
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sum of all the chemical reaction that occur in cells; hydrologis is one such chemical reactions
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microfilament
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structure of the cytoskeleton in eukaryotes; composed of actin and myosin, it provides structural support and assists cell movement.
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microtubule
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structure of the cytoskeleton in eukaryotes that helps certain organelles move within the cell.
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mitochondria
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organelles, bound by a double membrane, found in all eukaryotes; mitochondria break down organic molecules to release energy for cell reactions
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nucleoli
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prominent bodies found in the nucleus of eukaryotes; the site of RNA synthesis
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necleus
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control area of eukaryotic cells; contains chromatin and a nucleous
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organ
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a group of different tissues that work together to carry out a particular function; the stomach is an example
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prokaryote
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cell that lacks a membrane-bound nucleus and membrane-bound organelles; bacteria are prokaryotes.
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ribosome
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organnelle composed of RNA and protein; site where proteins are made from amino acids.
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symbiosis
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living together of two dissimilar organisms for their mutual benefit.
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system
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group of organs that depend on other organs to complete a biological process such as digestion, respiration, or reproduction.
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tissue
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in multicellular organisms, a specialized group of cells with the same basic structure that perform the same function
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vacuole
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membrane-bound, fluid-filled structure functioning in storage, digestion, and maintenance of osmotic balance.
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