bio 122 metabolism quiz

Ketone bodies can result from excess production of:

acetyl coA

Which of the following does not release hydrogens that are used to make ATP in electron transport?

all of these release hydrogen for use electron transport

The minimum resting energy expenditure of an awake, alert person is called

basal metabolic rate.

Which of the following is the first step in ATP production from fat?

beta-oxidation

It's been 5 hours since you had breakfast and now you're thinking about trying the new Mexican lunch place that just opened up across the street. The more you think about it, the hungrier you get. That's the result of the ________ that your empty stomach is releasing into your bloodstream.

ghrelin

A high uric acid level (above 7.4 mg/dl) can lead to the painful condition known as

gout

Which part of glucose metabolism yields the greater amount of ATP?

electron transport system

Glycolysis

end product is pyruvic acid

Which of these is a hormone that causes an increase in blood glucose concentration?

epinephrine

Linoleic acid and linolenic acid are examples of

essential fatty acids

There are ________ essential amino acids that the body either cannot synthesize or that cannot be produced in amounts sufficient for growing children.

10

electron transport

28 atp produced

During cellular respiration, how much of the original energy in the glucose molecule is transferred into ATP and how much is instead converted into (lost as) heat?

40 % atp 60% heat

In which of the following conditions does the hypothalamus fail to function?

heat stroke

Which of the following carry excess cholesterol from peripheral tissues to the liver?

high density lipoprotiens (HDL)

The energy content of foods is commonly given in units of

kilocalories

The hormone ________, which suppresses appetite and stimulates satiety, is released by adipose tissue.

leptin

All of the following occur during the postabsorptive state except that

levels of blood glucose are elevated

During starvation (a long-term situation):

little or no glycogen is store in the liver

Urea is formed in the

liver

beta oxidation

pathway for fatty acid breakdown

When the body is relying on internal energy reserves to continue meeting its energy demands, it is in the ________ state.

post-absorptive

A person with untreated diabetes mellitus would be in a prolonged:

post-absorptive state

Resting energy expenditure is most directly determined by monitoring

respiration

The increase in body temperature during exercise:

results from a greatly increased metabolism

Cytochromes

site of oxidation/reduction reactions in electron transport

citric acid cycle

starting material is acetyl CoA

Blood glucose levels are increased by:

glycogenolysis

Lipogenesis generally begins with

Acetyl CoA

The vitamin that prevents breakdown of vitamin A and fatty acids is vitamin

E

Which of the following terms describes the process by which glucose is metabolized to produce CO2, H2O, and energy?

catabolism

The lipoproteins that carry absorbed lipids from the intestinal tract to the bloodstream are the

chylomicrons

Which of the following hormones is most directly involved during the post-absorptive state?

glucagon

The conversion of glycerol and amino acids into glucose in called:

gluconeogenesis

The process of synthesizing glucose from noncarbohydrates is called

gluconeogenesis

All of the following are reasons why glucose is the primary energy source for cells except

glycogen breakdown occurs very slowly.

When the blood glucose level becomes low, which of the following would most likely increase?

glycogenlysis

At the Holy Frijoles restaurant, you order a burrito grande with extra sour cream and cheese and an order of tortilla chips with guacamole. You're very satisfied with your meal—it's a lot of food—and as you finish off the last of the chips, the satiety center in your ________ starts letting you know that you've had enough to eat now.

hypothalamus

________ is deficient in one or more of the essential amino acids.

incomplete protein

A political prisoner has been on a hunger strike for seven days. Compared to normal, he has:

increased release of fatty acid

Temperature regulation is:

influenced by peripheral thermoreceptors in the skin

A decrease in body weight occurs when caloric intake:

is less than basal metabolism plus external work

Impaired fat absorption in the intestine would interfere with the absorption of

vitamin A

Pellagra, an epithelial and mucosal deterioration, results from a deficiency in

vitamin B3 folic acid

Deficiency in what vitamin can result in a condition called scurvy?

vitamin c