Mastering Biology-CH 6-UH-Williams
Which of the following are products of cellular respiration?
energy to make ATP and carbon dioxide and water
The function of cellular respiration is to _____.
extract usable energy from glucose
Where does glycolysis occur in a eukaryotic cell?
in the cytoplasmic fluid
Through respiration, humans breathe in O2 and breathe out CO2. However, what would happen if we did not breathe in O2?
We would not make enough ATP to meet our energy requirements
The electron transport chain is a series of electron carrier molecules. In eukaryotes, where can this structure be found?
mitochondria
A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit
the citric acid cycle and oxidative phosphorylation.
As electrons move through the mitochondrial space
the pH of the intermembrane space changes.
The label on the box of breakfast cereal lists one serving as containing "200 Calories" per serving. How many calories are actually in one serving?
200,000
At the end of the citric acid cycle, most of the energy remaining from the original glucose is stored in
NADH.
In the electron transport chain, the final electron acceptor is
oxygen
A muscle cell deprived of molecular oxygen will convert glucose to lactic acid to __________.
recycle NADH through fermentation
The overall equation for the cellular respiration of glucose is
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy.
During fermentation, __________ that was produced during glycolysis is converted back to __________.
NADH; NAD+
Which of the following statements regarding the movement of electrons during cellular respiration is true?
O2 is reduced when it accepts electrons and forms water.
Which of the following statements about the energy yield of aerobic respiration is false?
Oxidative phosphorylation resulting from 1 glucose molecule yields 12 ATP molecules.
Which of the following statements regarding photosynthesis and cellular respiration is true?
Photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria.
What is the ultimate fate of the electrons that are stripped from glucose during cellular respiration?
They are used to form water
How do cells capture the energy released by cellular respiration?
They produce ATP
The mitochondrial cristae are an adaptation that
increases the space for more copies of the electron transport chain and ATP synthase complexes.
We inhale O2 and we exhale CO2. Carbon dioxide is produced __________.
n the reaction that creates acetyl CoA (coenzyme A) from pyruvate
Which of the following is a result of glycolysis?
onversion of glucose to two three-carbon compounds
