test 2 matching Flashcards
_______ are the ecosystems consumers
heterotrophs
in a redox reaction, the substance receiving the electrons is ________
reduced
_______is an electron carrier produced in the citric acid cycle
NADH
the reactant an enzyme acts on is the _______
substrate
_____ is split during the light reactions to fill the electron hole
water
a ______ is a chemical agent that changes the rate of reaction without being consumed by the reaction
catalyst
the citric acid cycle takes place in the _______
mitochondria
glycolysis occurs in the __________
cytoplasm
the “end product” of the citric acid cycle is ________
oxaloacetate
a reaction that has a negative delta-G is _________
exergonic
a reaction that has a positive delta-G is ____________
endergonic
________ is the final electron acceptor in the electron transport chain of cellular respiration
oxygen
in the mitochondria ________ is converted to Acetyl CoA. This is also the end product of glycolysis.
pyruvate
___________ is an allosteric enzyme involved in regulating cellular respiration.
phosphofructokinase
in the citric acid cycle, ________ combines with oxaloacetate to form citrate
Acetyl CoA
ATP synthesis uses the flow of _______ to produce ATP
hydrogen
cells that contain two sets of chromosomes are __________
diploid
energy comes into the ecosystem as __________ energy
light
in ______ fermentation pyruvate is converted to ethanol in 2 steps
alcohol
the mechanism that occurs when an enzyme transfers a phosphate group from a substrate molecule to ATP is called _________ phosphorylation
substrate-level
enzymes speed up reactions by lowering the ________ energy needed for the reaction to occur
activation
_______ is a byproduct of cellular respiration (and serves as a carbon source for the production of organic molecules during photosynthesis)
CO2
________ is the dividing of the cytoplasm
cytokinesis
__________ is the spread of cancer cells to distal locations
metastasis
cells that contain a single set of chromosomes are ________
haploid
