Cell Biology Questions
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At the end of a biochemical reaction, the enzyme
The process in which a reaction's products inhibit the enzyme that catalyzes the reaction is called
increase in enzyme concentration, increase in the amount of substrate (only to the point of saturation)
A(n) ______ reaction occurs when an atom or a molecule gains an electron, and its energy.
ATP releases energy when it donates a ______ group to another molecule.
When the endmost phosphate group is removed from ATP, what molecule is produced?
Although a small number of enzymes are RNA, most enzymes are ______.
All energy eventually becomes ______, which is disordered energy that results from the random movements of molecules.
One way that enzymes speed up reactions is to bring the ______ of the reaction together.
The region where a substrate (reactant) binds to an enzyme is called the ______ site.
In ______, ATP hydrolysis produces energy that drives a reaction that requires energy.
The energy molecule ___________ is not stored in large quantities in cells because its high-energy phosphate bonds are too unstable.
Which of the following is LEAST likely to occur during oxygen debt?A. Buildup of lactic acidB. Buildup of pyruvateC. Decrease in pHD. FatigueE. Decrease in pO2
In a coupled reaction, the ______ released from one reaction can be used to drive another reaction.
An ATP molecule is unstable and primed to release energy because its ______ groups are negatively charged and repel each other.
In eukaryotic cells, the breakdown of glucose molecules in organelles called mitochondria generates most of the cell's supply of
The amount of energy required to raise the temperature of 1 g of water 1οC is equal to 1
Which of the following is true of the dark reactions of photosynthesis?A. They occur in the mitochondriaB. They occur at nightC. They do not require light directly but are linked to the light reactionsD. They require light in the UV rangeE. They produce more energy than the light reactions
True or false: A phosphate group can be removed from ATP but cannot be replaced.
Stored energy that can be used to do work is called _________ energy, while energy of motion that is being used to do work is called ________ energy.