13 Jun What is the ultimate electron acceptor in aerobic cellular respiration
Question
1.
What is the ultimate electron acceptor in aerobic cellular respiration?
FAD
ADP
NAD+
hydrogen
oxygen
2.
Complete the following sentence: Cellular respiration is carried out by…
phototrophs.
heterotrophs.
producers.
phototrophs, heterotrophs and producers.
both producers and phototrophs.
3.
Which kind of reaction converts NAD+ to NADH?
respiration
phosphorylation
reduction
oxidation
fermentation
4.
Which class of food molecules contains the most energy per gram?
carbohydrates
fats
proteins
nucleic acids
All of these molecules contain an equal amount of energy per gram.
5.
Which atom below is the most electronegative?
hydrogen
carbon
nitrogen
oxygen
sulfur
7.
Which of these processes occurs in the mitochondria?
I. Glycolysis
II. Citric acid cycle
III. Oxidative phosphorylation
I only
II only
I and II
II and III
I, II, and III
8.
What happens to excess energy in the electron transport chain that is not used to establish an electrochemical gradient of protons?
It is used to regenerate NAD+.
It is dissipated as heat.
It is used to synthesize ATP.
It is used to synthesize glucose.
It is used to synthesize pyruvate.
9.
Which of the following processes occurs in the cytosol?
glycolysis
pyruvate oxidation
oxidative phosphorylation
citric acid cycle
All answers are correct.
10.
Which of the following molecules can be used by organisms to obtain energy?
glycerol
glucose
amino acids
fatty acids
All answers are correct.
11.
Which of the following is an individual unit of fats?
amino acids
glycerol
glucose
sucrose
adenine
12.
During glycolysis, how many molecules of NADH are formed per molecule of glucose?
1
2
4
8
cannot be determined
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