test Flashcards
ecological niche of regulators
regulators have a wider ecological niche
ecological niche of conformer
conformers have a narrow ecological niche
why do mammals have to regulate body temperature?
mammals are endothermic so they must keep their body temperature at a constant level
how are messages sent from the hypothalamus to the skin?
by sending nerve impulses
energy source for the electron transport chain
ATP
role of oxygen in electron transport chain
it is the final electron acceptor
role of dehydrogenase enzymes in electron transport chain and glycolysis
removes hydrogen ions and electrons
how does complete circulatory system give high metabolic rate?
as there is no mixing of oxygenated and deoxygenated blood
what is the temperature monitoring centre in mammals?
the hypothalamus
what is a regulator?
regulators can control their internal environment
what is a conformers?
conformers internal environment is dependent on it’s external environment
what is an inhibitor?
an inhibitor does not bind to the active site but binds to a different part of the enzyme which stops the substrate from binding and this decreases the reaction rate
what is an anabolic reaction?
an anabolic reaction builds up smaller molecules into bigger ones. This requires energy
what is a catabolic reaction?
a catabolic reaction breaks down larger molecules into smaller ones. This releases energy
what are the two first stages of cellular respiration?
glycolysis and the citric acid cycle
