Metabolism And Nutrition: T Or F

Front 1

In the cellular reactions of metabolism, every oxidation reaction is accompanied by a "reduction" reaction.

Back 1

True

Front 2

A mole of adenosine triphosphate can be broken down with the release of "38 calories" of energy.

Back 2

False, 7.3 kilocalories

Front 3

The function of cytochromes in cellular metabolism is to accept and release "protons" during energy transfer among molecules.

Back 3

False, electrons

Front 4

The gaseous waste product of cellular respiration "oxygen."

Back 4

False, carbon dioxide

Front 5

During the process of glycolysis, a glucose molecule is metabolized through a series of enzyme reactions with the result of two molecules of "acetic" acid.

Back 5

False, pyruvic

Front 6

The reactions of glycolysis occur in the "mitochondria" of human tissue cells.

Back 6

False, cytoplasm

Front 7

Another name for the Krebs cycle is the "citric acid cycle," because citric acid is formed during the process.

Back 7

True

Front 8

The six molecules of carbon dioxide that form during the processes of cellular respiration contain the six carbon atoms originally in the molecule of "glucose" that began the process.

Back 8

True

Front 9

The energy used to synthesize ATP molecules is that energy released to the pumping of protons in the process of "glycolysis."

Back 9

False, chemiosmosis

Front 10

During the process of "glycogenolysis," glucose molecules are bound to one another for storage in the liver.

Back 10

False, glycogenesis

Front 11

Microscopic droplets of dietary fat that enter the lacteal vessels and the general circulation are called "chylomicrons."

Back 11

True

Front 12

A high level of "high" density lipoproteins indicates that much cholesterol is being transported in the blood, and this level is associated with a high incidence of coronary heart disease.

Back 12

False, low

Front 13

During the breakdown of fats and energy metabolism, the "glycerol" portion of the fat molecule is converted to acetyl-CoA for metabolism in the Krebs cycle.

Back 13

False, fatty acid

Front 14

When fat catabolism is occurring at a high rate, the body forms a high number of "aldehyde" bodies, which accumulate in the bloodstream.

Back 14

False, ketone

Front 15

Among the unsaturated fatty acids that cannot be synthesized by the body are linolenic, linoleic, and "arachidonic."

Back 15

True

Front 16

During the process of deamination, the amino groups of amino acids are removed and used to form molecules of "glucose," which are then metabolized to form urea.

Back 16

False, ammonia

Front 17

"Animal" protein is generally regarded as incomplete protein because it lacks several essential amino acids.

Back 17

False, plant

Front 18

During the absorptive state, the body uses amino acids for "energy metabolism," and stores excess as fat.

Back 18

False, protein synthesis

Front 19

During the post absorptive state, almost all the tissues and organs depend primarily on "protein" for energy.

Back 19

False, fat

Front 20

The mineral "iron" is required by the body for the formation of hemoglobin and for the synthesis of cytochromes used in electron transport.

Back 20

True

Front 21

The vitamin riboflavin is essential in the diet because it is utilized to form "NAD."

Back 21

False, FAD

Front 22

The synthesis of prothrombin in the liver requires the presence of "vitamin E."

Back 22

False, Vitamin K

Front 23

A device called a "sphygmomanometer" is used to determine the basal metabolic rate of an individual.

Back 23

False, calorimeter

Front 24

A large amount of heat is produced in the body during the breakdown of food and during the activity of "epithelial cells."

Back 24

False, muscle

Front 25

The major center for temperature regulation is an area of the brain known as the "hypothalamus."

Back 25

True