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CH.2 vocab
biology (cell)
Question | Answer |
---|---|
cell | smallest unit of life |
amino acids | organic molecule that is the building block of protein |
carbohydrates | organic compound composed of carbon, hydrogen, and oxygen, used by living things as an energy source |
cell membrane | bilipd layer that encloses the cytoplasm, essential to cell's cytoplasm |
cell theory | principle that states all organisms are made of one or more cells that are derived from other cells |
cellulose | carb that is the main structural component of cell wall |
central vacuole | membrane bound cavity in plant cells used for storage |
centriole | rod shaped organelle that help move chromosomes during cell division |
chromosome | cellular structure in which genes are located |
cilia | in cells, tightlly packed rows of short flagella used for movement |
collagen | fibrous structural protein present in all multicellular organisms, particulary in connective tissue |
cytoplasm | the material between the cell membraane and the nuclear membrane |
DNA | deoxyribonucleic acid-nucleic acid that stores hereditary info |
ER | cell membrane in the cytoplasm that transports materials made by the cell |
enzymes | protein that catalyzes a chemical reaction |
eukaryotic | complex cell that has nucleus enclosed by a membrane |
flagella | whiplike structure that grows out of a cell and enables it to move |
glycogen | polymemr of glucose used for short term enegy storage |
golgi apparatus | cell organelle of a euk. cell that consists of flattened sacs and collects, packages, and distributes molecules produced by the cell |
lysosome | cell organelle of a euk. cell containing hydrolytic, digestive enzymes |
microtubule | hollow protein fiber in the cytoplasm of a euk. cell involved in cell movement and structure. |
mitochondrion | cell organelle of a euk. cell that supplies the cell with ATP by preforming oxydative respiration |
nuclear membrane | double membrane that surrounds the cell's nucleus |
nucleic acid | organic molecule that stores info for cell function, DNA or RNA |
nucleus | the organelle that houses the DNA of a euk. cell |
organelle | subcellular structure that has a special function |
polypeptide | chain of amino acids |
polysaccharide | complex carbohydrate composed of three or more monosaccharides |
prokaryote | cell without a nucleus |
protein | organic compound formed of one or more chains of polypeptide |
ribosome | cytoplasmic organelle on which proteins are synthesized |
RNA | a type of nucleic acid that participates in the expression of genes |
saturated fat | fat that caontains no c=c bonds |
starch | a storage form of glucose consisting of hundreds of glucose molecules |
steriod | a class of lipids that includes cholesterol and some hormones |
unsaturated fat | fat that contains c=c bonds |
vesicle | membrane enclosed sac in cell's interior |