BIO101 Intro to College Biology I
Homework 7 Chapter
Question 1How many NADH + H + are produced by the citric acid cycle per turn?
one
two
three
four
six
Question 2In cellular respiration, what is the relationship between the energy content of the reactants (glucose and O 2) and products (CO 2 and H 2O)?
There is no relationship between O2 and H2O, but the energy content of glucose is less than that of CO2.
The energy content of the reactants (glucose and O2) must equal the energy content of the products (CO2 and H2O).
The energy content of the reactants (glucose and O2) must be less than the energy content of the products (CO2 and H2O).
The energy content of the reactants (glucose and O2) must be greater than the energy content of the products (CO2 and H2O).
There is no relationship between the energy content of the reactants (glucose and O2) and the energy content of the products (CO2 and H2O).
Question 3The ATP synthase complex is located in the
plasma membrane of the cell.
cristae of the mitochondria.
matrix inside the mitochondria.
cytoplasm outside the mitochondria.
outer membrane of the mitochondria.
Question 4The number of ATPs produced directly as a result of one turn of the citric acid cycle is
2.
1.
16.
12.
14.
Question 5What are the input requirements of glycolysis?
2 pyruvates, 2 NADH, and 2 ADP
2 ATP, 4 NAD+, glucose, and 4 ADP
4 ATP, 2 NAD+, glucose, and 4 ADP
2 ATP, 2 NAD+, glucose, and 4 ADP
2 ATP, 2 NAD+, glucose, and 2 ADP
Question 6Which of the following reactions is NOT part of the cellular respiration pathway?
electron transport chain
glycolysis
Calvin cycle
preparatory reaction (prep)
citric acid cycle
Question 7Which of the following statements about fermentation is not true?
Fermentation does not require oxygen.
Fermentation can produce lactic acid.
Fermentation involves the citric acid cycle.
Fermentation produces a net two ATP molecules.
Fermentation can produce alcohol.
Question 8Why does chemiosmosis require a membrane?
to anchor proteins within the mitochondria
to provide a large surface area
to separate two compartments of the cell to allow for gradient formation
to generate H+ from water
because the phospholipids are involved in the electron transport chain
Question 9Why is ATP used as the energy molecule of the cell?
ATP is stored inside the cell where it is readily available whenever needed.
ATP is easy to synthesize within the cell.
ATP contains large amounts of energy so at least some of it can be used by the cell.
ATP can be broken down into carbon dioxide and water.
ATP contains just about the amount of energy required for most cellular reactions.
Question 10Why is cellular respiration organized into four phases?
So that oxidation can occur without reduction.
So that most of the energy can be released as body heat.
So that the energy within the glucose molecule can be released in a stepwise fashion.
So that it can take place within different cells.
So that the body can make energy from different substrates.
