module 1 BMSC 230- Questions and Answers 100%
Solved
first committed step Correct Ans-often the first reaction in the pathway, usually a point of
regulation.
Rate-limiting Correct Ans-reactions that are regulated in a pathway are often what kind of
steps?
amphibolic pathways Correct Ans-pathways that can function anabolically and
catabolically depending on the energy conditions in the cell
continual input of free energy Correct Ans-living organisms require this for 3 major
purposes
1) the performance of mechanical work (cellular movt)
2) active transport of biomolecules and ions
3) the synthesis of macromolecules from simple precursors
phototrophs Correct Ans-such as plants; use photosynthesis to convert the energy in
sunlight into a chemical form
chemotrophs Correct Ans-such as humans, obtain energy in the form of ATP through
oxidation of carbon fuels such as fats and carbohydrates
, module 1 BMSC 230- Questions and Answers 100%
Solved
enzymes Correct Ans-only speed up the rate of a chemical reaction. do NOT change the
equilibrium constant.
thermodynamic properties of a reaction Correct Ans-the free energy different between the
products and reactions and the free energy required to initiate the conversion of reactants
and produces
free energy difference Correct Ans-determines whether a reaction will take place
spontaneously (is it possible)
metabolism Correct Ans-refers to the enzyme-catalyzed chemical reactions that occure in a
cell to either breakdown biomolecules to obtain energy in a form that can be used by the
body (ATP) or reactions that synthesize biomolecules that our bodies need.
sum total of catabolism and anabolism
catabolism Correct Ans-refers to those chemical reactions that breakdown biomolecules to
produce energy
anabolism Correct Ans-refers to chemical reactions that lead to the synthesis of
biomolecules that require input of energy
Solved
first committed step Correct Ans-often the first reaction in the pathway, usually a point of
regulation.
Rate-limiting Correct Ans-reactions that are regulated in a pathway are often what kind of
steps?
amphibolic pathways Correct Ans-pathways that can function anabolically and
catabolically depending on the energy conditions in the cell
continual input of free energy Correct Ans-living organisms require this for 3 major
purposes
1) the performance of mechanical work (cellular movt)
2) active transport of biomolecules and ions
3) the synthesis of macromolecules from simple precursors
phototrophs Correct Ans-such as plants; use photosynthesis to convert the energy in
sunlight into a chemical form
chemotrophs Correct Ans-such as humans, obtain energy in the form of ATP through
oxidation of carbon fuels such as fats and carbohydrates
, module 1 BMSC 230- Questions and Answers 100%
Solved
enzymes Correct Ans-only speed up the rate of a chemical reaction. do NOT change the
equilibrium constant.
thermodynamic properties of a reaction Correct Ans-the free energy different between the
products and reactions and the free energy required to initiate the conversion of reactants
and produces
free energy difference Correct Ans-determines whether a reaction will take place
spontaneously (is it possible)
metabolism Correct Ans-refers to the enzyme-catalyzed chemical reactions that occure in a
cell to either breakdown biomolecules to obtain energy in a form that can be used by the
body (ATP) or reactions that synthesize biomolecules that our bodies need.
sum total of catabolism and anabolism
catabolism Correct Ans-refers to those chemical reactions that breakdown biomolecules to
produce energy
anabolism Correct Ans-refers to chemical reactions that lead to the synthesis of
biomolecules that require input of energy
