Bio 3 Chapter 6
The first electron acceptor of cellular respiration is ________.
NAD+
The processes of photosynthesis and cellular respiration are complementary. During these energy conversions, some energy is
lost in the form of heat.
Electron transport takes place in the ________.
mitochondria
A process is referred to as aerobic if it requires________
oxygen
The final electron acceptor of aerobic respiration is ________.
oxygen
Human muscle cells use lactic acid fermentation to ________
produce ATP without O2
Glycolysis
takes place in virtually all cells.
In cellular respiration, most ATP is DIRECTLY produced as a result of ________.
the movement of hydrogen ions across the inner mitochondrial membrane
Muscle soreness associated with strenuous exercise is at least partly due to
the presence of lactic acid produced during fermentation in muscle cells.
How do cells capture the energy released by cellular respiration?
they produce ATP
What compound directly provides energy for cellular work?
ATP
Which claim about the history of the Earth has the most scientific support?
Anaerobic organisms must have come first because there was no oxygen in the atmosphere.
What must pyruvic acid be converted to before it can enter the citric acid cycle?
acetyl CoA
Large amounts of oxygen gas first appeared in Earth's atmosphere about ________ of years ago.
billions
Which part of cellular respiration produces the most NADH?
citric acid cycle
Where in the cell does glycolysis occur?
cytoplasm
During cellular respiration, NADH
delivers its electron load to the first electron carrier molecule.
Which of the following are products of cellular respiration?
energy to make ATP and carbon dioxide
What waste product do yeast produce under anaerobic conditions?
ethyl alcohol
If you consume one gram of each of the following, which will yield the most ATP?
fat
Pyruvate
forms at the end of glycolysis
ATP synthase plays a role in ________.
generating ATP
The only stage of cell respiration that is not dependent on the other stages of cell respiration is ________.
glycolysis
Which metabolic pathway is common to both aerobic and anaerobic processes of sugar breakdown?
glycolysis
Which one of the following metabolic pathways is common in aerobic and anaerobic organisms?
glycolysis
Humans are both ________.
heterotrophs and consumers
During cellular respiration, the energy in glucose
is carried by electrons.
Respiration __________, and cellular respiration __________.
is gas exchange . . . produces ATP
The waste products of cellular respiration include ________.
water and carbon dioxide
The term anaerobic means
without O2