chapter 24 Flashcards
Which of the following is NOT a major nutrient?
minerals
glucose
exclusive energy source for neurons
cholesterol
serves as a precursor to hormones and maintains the fluidity of the plasma membrane
protein
used to build enzymes
vitamins
can function as coenzymes
mineral
may be incorporated into structures to make them stronger
A person who is starving is likely to exhibit __________.
negative nitrogen balance
Fat-soluble vitamins can be toxic if consumed in large quantities.
True
Which of the following is an example of catabolism?
cellular respiration
A substance that is reduced has lost an electron.
false
Which of the following is NOT a characteristic of glycolysis?
Glycolysis is an aerobic process
Which of the following is a characteristic of the Krebs cycle?
The Krebs cycle generates a rich supply of the reduced coenzymes, NADH and FADH2.
The final electron acceptor in the electron transport chain is __________.
oxygen
glycogenesis
the formation of glycogen to store glucose
glycogenolysis
the cleavage of glycogen to release glucose
gluconeogenesis
the process of forming glucose from noncarbohydrate molecules
beta oxidation
the start phase of fatty acid breakdown
lipogenesis
triglyceride synthesis
As proteins are broken down for energy, __________ is generated; the liver then converts this potentially toxic intermediate into __________.
ammonia; urea
In the absorptive state, __________.
insulin serves as the main regulatory hormone
In the postabsorptive state, __________.
glycogen is broken down to release glucose
__________ is considered “good” cholesterol; high blood levels of this cholesterol are thought to be beneficial.
HDLs
Which of the following is considered a long-term regulator of feeding behavior?
leptin levels
The body’s overall rate of energy output is called the basal metabolic rate.
False
Which of the following would raise body temperature?
thyroxine
