The reactions involved in producing larger compounds from smaller compounds is called
answer
anabolism.
question
Where does the energy required for anabolic reactions come from?
answer
Catabolic reactions
question
The use of amino acids to make proteins
answer
is an example of anabolism.
question
Why do enzymes display specificity for particular substrates?
answer
Because of the unique three-dimensional shape of the active site
question
Which of the following is true regarding factors that influence enzymatic activity?
answer
The rate of enzymatic reactions declines beyond the optimum temperature due to the loss of the enzyme's three-dimensional structure.
question
Where would you expect to find electron transport chains in a prokaryote?
answer
Along the plasma membrane
question
According to the animation, which compounds provide electrons to the system?
answer
NADH and FADH2
question
According to the animation, what does oxygen get reduced to at the end of the electron transport chain?
answer
water
question
According to the animation, what does the electron transport chain do to the concentration of hydrogen ions (protons)?
answer
The concentration of protons is higher outside the membrane than inside.
question
The process of generating ATP using a proton gradient is referred to as
answer
chemiosmosis
question
Why is ATP required for glycolysis?
answer
ATP makes it easier to break apart glucose into two three-carbon molecules
question
Glycolysis literally means
answer
sugar splitting
question
How many net ATPs can be made from one molecule of glucose in glycolysis?
answer
2
question
What carbon molecules remain at the end of glycolysis?
answer
Pyruvic acid
question
Which of the following statements about glycolysis is true?
answer
Glycolysis is also called the Embden-Meyerhof pathway.
question
What occurs at the bridge step?
answer
Decarboxylation of pyruvic acid
question
Based on the animation, how many electron carriers are reduced in the Krebs cycle only?
answer
4
question
What is the function of GTP?
answer
An energy carrier
question
What is the fate of metabolites during respiration?
answer
They are oxidized completely to carbon dioxide and water
question
Before amino acids (the building blocks of proteins) can be catabolized, they must be converted to other substances that can enter the Krebs cycle by all of the following methods, except:
answer
transamination
question
Which of the following does not define fermentation?
answer
Fermentation requires the use of the Krebs cycle or an electron transport chain (ETC).
question
Which of the following statements about fermentation is true?
answer
It is an alternative way to return electron carriers to their oxidized state.
question
What is the role of pyruvic acid in fermentation?
answer
It takes the electrons from NADH, oxidizing it back into NAD+
question
What is the fate of the NAD+ newly regenerated by fermentation?
answer
It returns to glycolysis to pick up more electrons
question
Which of the following is an acid produced by fermentation?
answer
Lactic acid and propionic acid
question
What is the intermediate product formed by pyruvic acid during alcoholic fermentation?
answer
Acetaldehyde
question
Why do all enzymatic reactions need activation energy?
answer
Energy is required to disrupt a substrate's stable electron configuration.
question
What is meant by the statement "Enzymes are biological catalysts"?
answer
Enzymes speed up the chemical reactions in living cells
question
Why are enzymes important to biological systems?
answer
Enzymes decrease the amount of activation energy required for chemical reactions to occur.
Haven't found what you need?
Search for quizzes and test answers now
Quizzes.studymoose.com uses cookies. By continuing you agree to our cookie policy
