Chapter 26

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  • 1/45 Questions

    Which is the healthiest ratio?

    • High SFA : low HDL
    • High LDL : low HDL
    • High HDL : low LDL
    • High chylomicron : low LDL
    • High LDL : low chylomicron
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About This Quiz

Once again, some questions that will be on the exam. =]

Chapter 26 - Quiz

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  • 2. 

    Most protein in the body is found in

    • The muscular system

    • The skeletal system

    • The lymphatic system

    • The integumentary system

    • The cardiovascular system

    Correct Answer
    A. The muscular system
  • 3. 

    Glycolysis and aerobic respiration collectively produce up to ____________ ATP per glucose, whereas anaerobic fermentation produces _______________.

    • 38; none

    • 38; 2

    • 2; about the same, varying from one tissue to another

    • 38; about the same, varying from one tissue to another

    • 38; 36

    Correct Answer
    A. 38; 2
  • 4. 

    HDL comes from

    • The pancreas

    • The diet

    • The liver

    • The small intestines

    • The gallbladder

    Correct Answer
    A. The liver
  • 5. 

    Macronutrients include

    • Carbohydrates, lipids, proteins, but no water

    • Carbohydrates, lipids, proteins, and water.

    • Sodium, potassium,calcium, chloride, and phosphorus

    • Nucleic acids, carbohydrates, lipids, and proteins

    • Sodium, potassium, carbohydrates, lipids, and proteins.

    Correct Answer
    A. Carbohydrates, lipids, proteins, and water.
  • 6. 

                      constitutes the so-called "bad cholesterol."

    • Low-density lipoproteins

    • Triglycerides

    • High-density lipoproteins

    • Chylomicrons

    • Very-low-density lipoproteins

    Correct Answer
    A. Low-density lipoproteins
  • 7. 

    High-quality               proteins are those that provide all the essential amino acids

    • Incomplete

    • Net

    • Fibrous

    • Complete

    • Globular

    Correct Answer
    A. Complete
  • 8. 

               yield about 4 kcal/g when completely oxidized, whereas                yield about 9kcal/g

    • Carbohydrates and fats; proteins

    • Proteins and carbohydrates; fats

    • Fats; carbohydrates and proteins

    • Proteins; fats and carbohydrates

    • Carbohydrates;fats and proteins

    Correct Answer
    A. Proteins and carbohydrates; fats
  • 9. 

    Fats should account for about               percent of the daily caloric intake.

    • 5

    • 10

    • 30

    • 50

    • 60

    Correct Answer
    A. 30
  • 10. 

    Which of the following would you expect to be in a state of negative nitrogen?

    • Patients with muscle atrophy

    • Growing children

    • Weightlifters

    • Body builders

    • Pregnant women

    Correct Answer
    A. Patients with muscle atrophy
  • 11. 

    Most body 's fat is stored in

    • HDL

    • Cholesterol

    • Triglycerides

    • LDL

    • Fatty acids

    Correct Answer
    A. Triglycerides
  • 12. 

    Minerals are                 , whereas vitamins are                 .

    • Micronutrients; macronutrients

    • Inorganic elements; organic compounds

    • Water-soluble elements; lipid-soluble compunds

    • Incomplete nutrients; complete nutrients

    • Inessential nutrients; essential nutrients

    Correct Answer
    A. Inorganic elements; organic compounds
  • 13. 

    Only approximately _____________% of the energy in the glucose molecule winds up in ATP, the rest is lost as body heat.

    • 10

    • 20

    • 40

    • 80

    • 90

    Correct Answer
    A. 40
  • 14. 

    The synthese of glucose from amino acids belongs to a metabolic process called

    • Gluconeogenesis

    • Glycolysis

    • Glycogen catabolism

    • Glycogenolysis

    • Glycogenesis

    Correct Answer
    A. Gluconeogenesis
  • 15. 

    Incomplete fatty acid oxidation produces ____________, which might lead to ____________.

    • Pyruvic acid; acidosis

    • Triglycerides; new triglycerides

    • Ketone bodies; acidosis

    • Acetyl-CoA; acidosis

    • Glycerol; alkalosis

    Correct Answer
    A. Ketone bodies; acidosis
  • 16. 

    Heat exhaustion results from

    • Extreme electrolyte loss in the sweat.

    • Denaturation of proteins in the brain tissue.

    • Excessive heat loss from the body.

    • A high rate of conduction and convection.

    • A high humidity that retards evaporative cooling.

    Correct Answer
    A. Extreme electrolyte loss in the sweat.
  • 17. 

    Most carbohydrates in the body are found in

    • Adipose tissue

    • Blood

    • Pancreas

    • Muscular tissue

    • Liver

    Correct Answer
    A. Muscular tissue
  • 18. 

    Lipid functions include all of the following except

    • Forming myelin around nerve fibers

    • Forming of the skeletal muscle fibers

    • Plasma membrane structure

    • Cushioning around soft organs

    • Chemical structure of hormones

    Correct Answer
    A. Forming of the skeletal muscle fibers
  • 19. 

                is a product of aerobic respiration.

    • Lactic acid

    • Glucose

    • Oxygen

    • Carbon dioxide

    • Pyruvic acid

    Correct Answer
    A. Carbon dioxide
  • 20. 

    During the absorptive state

    • Lipolysis is active.

    • Fatty acids are oxidized for fuel.

    • Gluconeogenesis is suppressed.

    • Lipolysis is active.

    • Blood glucose falls.

    Correct Answer
    A. Gluconeogenesis is suppressed.
  • 21. 

    Vitamin                        deficiency is the most common worldwide.

    • D(calcitroil)

    • C(ascorbic acid)

    • E (a- tocopherol)

    • A (retinol)

    • B6 (pyridoxine)

    Correct Answer
    A. A (retinol)
  • 22. 

    He basal metabolic rate should be measured when a person

    • Is engaged in normal physical activity but not strenuous exercise.

    • Is in the absorptive state.

    • Has just eaten a meal of no more than 2000 kcal.

    • First rises in the morning.

    • Is sleeping.

    Correct Answer
    A. First rises in the morning.
  • 23. 

    Most of the NADH contributing energy to ATP synthesis is produced by

    • Anaerobic fermentation.

    • Glycolysis.

    • The citric acid cycle.

    • Electron transfer from FADH2.

    • The mitochondrial proton pumps.

    Correct Answer
    A. The citric acid cycle.
  • 24. 

     _____________ does not raise total metabolic rate (TMR).

    • Starvation

    • Anxiety

    • Fever

    • Eating a big meal

    • Pregnancy

    Correct Answer
    A. Starvation
  • 25. 

    Glycogenesis is stimulated by ____________, and glycogenolysis is stimulated by ____________.

    • Insulin; glucagon and epinephrine

    • Insulin; aldosterone

    • Growth hormone; glucagon and epinephrine

    • Growth hormone; cortisol

    • Growth hormone; insulin

    Correct Answer
    A. Insulin; glucagon and epinephrine
  • 26. 

    Shivering warms the body because it increases the rate of

    • Radiation.

    • Conduction.

    • ATP hydrolysis.

    • Vasodilation.

    • Glycolysis

    Correct Answer
    A. ATP hydrolysis.
  • 27. 

    Carbohydrates function as structural components of other molecules including all of the following except

    • Nucleic acids

    • Glycolipids

    • Glycoproteins

    • Amino acids

    • ATP

    Correct Answer
    A. Amino acids
  • 28. 

    Oxygen

    • Transports electrons to the mitochondrion.

    • Is the final electron acceptor in aerobic respiration

    • Directly transfers electrons and protons to NAD+ and FAD

    • Directly receives electrons and protons from NAD+ and FAD

    • Is the only substrate of aerobic respiration.

    Correct Answer
    A. Is the final electron acceptor in aerobic respiration
  • 29. 

    People on weight-loss diets often lose weight quickly at first, but then more slowly. This is for all the following reasons except

    • The initial weight loss is mostly fat.

    • Water is lost quickly but other weight is harder to lose.

    • Will power often weakens as the diet progresses.

    • The body lowers its metabolic rate when it loses weight.

    • As a diet progresses, the body produces more fat even with the same caloric intake.

    Correct Answer
    A. The initial weight loss is mostly fat.
  • 30. 

    Fatty acids are catabolized by a process called

    • Ketogenesis

    • Beta oxidation.

    • Lipogenesis

    • The fat-sparing effect.

    • Lipolysis.

    Correct Answer
    A. Beta oxidation.
  • 31. 

    The liver does not

    • Convert ammonia to urea.

    • Produce insulin and glucagon.

    • Carry out most beta oxidation.

    • Synthesize cholesterol.

    • Synthesize glucose from fats and amino acids.

    Correct Answer
    A. Produce insulin and glucagon.
  • 32. 

    Proteins are associated with all these functions except

    • Enzymatic reactions

    • Serving as cofactors for enzymes

    • Transport of blood lipids

    • Muscle contraction

    • Blood viscosity and osmolarity

    Correct Answer
    A. Serving as cofactors for enzymes
  • 33. 

    Oxidation of a typical fatty acid can yield

    • 129 ATP.

    • 38 ATP

    • 2 ATP

    • 36 ATP

    • 18 ATP

    Correct Answer
    A. 129 ATP.
  • 34. 

    A nude body at a room temperature of 21°C (70°F) loses most of its heat by

    • Evaporation

    • Conduction

    • Convection

    • Radiation

    • Forced convection

    Correct Answer
    A. Radiation
  • 35. 

    ___________ is secreted during the postabsorptive state.

    • Gastrin

    • Insulin

    • Growth hormone

    • Cholecystokinin (CCK)

    • Secretin

    Correct Answer
    A. Growth hormone
  • 36. 

     The highest rate of tissue protein turnover happens in the

    • Hepatic sinusoids.

    • Gastric mucosa.

    • Splenic sinusoids.

    • Intestinal mucosa.

    • Pancreatic islets.

    Correct Answer
    A. Intestinal mucosa.
  • 37. 

    The liver performs all of the following functions except

    • Secretion of digestive enzymes.

    • Glycogenesis.

    • Detoxification.

    • Phagocytosis.

    • Synthesis of plasma proteins

    Correct Answer
    A. Secretion of digestive enzymes.
  • 38. 

    During the postabsorptive state

    • Blood glucose rises

    • Lipids are stored in adipose tissue.

    • Glycerol is used for gluconeogenesis.

    • Protein synthesis is active.

    • Glucose is stored by glycogenesis.

    Correct Answer
    A. Glycerol is used for gluconeogenesis.
  • 39. 

    The loss of body heat by conduction can be enhanced by

    • Convection

    • Evaporation

    • Nonshivering thermogenesis

    • Shivering thermogenesis

    • Radiation

    Correct Answer
    A. Convection
  • 40. 

     The quickest physiological mechanism for achieving moderate heat loss is

    • Convection

    • Cutaneous vasoconstriction

    • Nonshivering thermogensis

    • Cutaneous vasodilation

    • Diaphoresis

    Correct Answer
    A. Cutaneous vasodilation
  • 41. 

    Which of the following compounds yields the most ATP per molecule?

    • Glycogen

    • Lactic acid

    • Acetyl-CoA

    • Pyruvic acid

    • Glucose

    Correct Answer
    A. Glycogen
  • 42. 

    What metabolic process produces ammonia?

    • Beta oxidation of α-ketoglutaric acid

    • Lipolysis

    • Transamination of urea

    • Deamination of glutamic acid

    • Amination of keto acids

    Correct Answer
    A. Deamination of glutamic acid
  • 43. 

    During periods of fasting, fat is said to have a protein-sparing effect because the body

    • Oxidizes its spare protein before it depletes its fat reserves.

    • Metabolizes fats and proteins through the same metabolic pathways.

    • Must have an adequate protein intake in order to absorb and metabolize fats.

    • Does not oxidize its proteins unless it has consumed its fat reserves first.

    • Does not oxidize its proteins unless it has consumed its fat reserves first

    Correct Answer
    A. Does not oxidize its proteins unless it has consumed its fat reserves first.
  • 44. 

                    is a product of glycolysis

    • Pyruvic acid

    • Lactic acid

    • Acetyl-CoA

    • Carbon dioxide

    • Glucose

    Correct Answer
    A. Acetyl-CoA
  • 45. 

    The first step in using amino acids as fuel is to _____________ them.

    • Synthesize

    • Aminate

    • Transaminate

    • Deaminate

    • Digest

    Correct Answer(s)
    A. Aminate
    A. Deaminate

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  • Mar 18, 2022
    Quiz Edited by
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  • Mar 26, 2010
    Quiz Created by
    Failatlife
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