Ap Biology Unit 1 Vocabulary Review

carbon dioxide fixation – transfer of carbon dioxide to organic compounds; dark reactions or light-independent reactions
reactants – the substances changed during a chemical reaction
kinetic energy – energy associated with motion
What food sources contain first class proteins and what are they. – Meat and fish, they contain all the essential amino acids that a human needs.
heterokaryotic – A fungal life cycle stage that contains two genetically different nuclei in the same cell.
ATP is the abbreviation for – Adenosine triphosphate
What is a food web? – A diagram, which shows how all food chains in a habitat are interrelated. This joins up many food chains and can end up complicated, due to animals having varied diets. It also shows the interdependence of all living organisms in a habitat. The make-up of a food web is affected by the environment, and changes in this will alter the food web.
lock & key – How is the fit between a substrate and the active site of its enzyme described?
What is body composition?
Where most cell activities occur. – cytoplasm
Species – A group of similar organisms that can breed and produce fertile offspring
Whаt is bоdy cоmpоsition?
ecosystems – Communities of living species and their physical environments
In the oxidation of pyruvate to acetyl CoA, one carbon atom is released as CO2. However, the oxidation of the remaining two carbon atoms—in acetate—to CO2 requires a complex, eight-step pathway—the citric acid cycle. Consider four possible explanations for why the last two carbons in acetate are converted to CO2 in a complex cyclic pathway rather than through a simple, linear reaction. – It is easier to remove electrons and produce CO2 from compounds with three or more carbon atoms than from a two-carbon compound such as acetyl CoA.
Compounds – A substance made of two or more atoms of different elements bonded together by covalent or ionic bonds. H2O, CO2, NaCl, for example.
vacuole – organelle that is used to store materials, such as water, food, or enzymes, that are needed by the cell.
ATP – Main energy source that cells use for most of their work

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