Chapter 6 Flashcards
The ultimate source of the energy in food is from…
the sun
During redox reactions…
the substance that gains electrons is reduced
What equation describes aerobic cellular respiration?
glucose + oxygen»_space;> carbon dioxide + water + energy
Which of the following is the correct sequence of stages in cellular respiration?
glycolysis, citric acid cycle, electron transport
Where in the cell does glycolysis occur?
cytoplasm
During cellular respiration, electrons move through a series of electron accepter molecules. Which is a true statement about the process?
a. the electrons gain energy as they move from one electron acceptor to another
b. glucose is eventually reduced by the electrons to form water
c. oxygen is eventually reduced by the electrons to form water
d. the electrons release large amounts of energy each time they are transferred from one electron acceptor to another
oxygen is eventually reduced by the electrons to form water
The first electron acceptor of cellular respiration is..
NAD+
Electron transport takes place in the…
mitochondria
the electron transport chain in cellular respiration uses… from… in order to generate ATP.
electrons; NADH
Cyanide is a deadly poison that…
prevents the passage of electrons to oxygen
Aerobic cellular respiration generates about … ATP from one glucose.
32
Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown?
glycolysis
A child is born with a rare disease in which mitochondria are missing from certain skeletal muscle cells. Physicians found that the muscle cells function. Not surprisingly, they also find that…
the muscles contain large amounts of lactic acid following even mild physical exercise
