Chapter 3, 4, & 26

90 Questions  I  By Shardman38
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  • 1. 
    Which of these is (are) always hydrophobic?
    • A. 

      Glucose

    • B. 

      Cholesterol

    • C. 

      Amino acids

    • D. 

      Proteins


  • 2. 
    Which of these is hydrophobic?
    • A. 

      Sugar

    • B. 

      K+

    • C. 

      Cl

    • D. 

      Water

    • E. 

      Fat


  • 3. 
    Transmembrane proteins that make up enzymes in the plasma membrane are made up of hydrophilic and hydrophobic regions. Most amino acids embedded in the membrane are ________, while most amino acids facing the extracellular fluid are __________.
    • A. 

      Hydrophilic; hydrophilic

    • B. 

      Hydrophilic; hydrophobic

    • C. 

      Hydrophobic; hydrophobic

    • D. 

      Hydrophobic; hydrophilic

    • E. 

      Lipophilic; lipophobic


  • 4. 
    . ______ describes the number of particles of a solute in a solution, whereas ______ is the ability of a solution to affect the fluid volume in a cell.
    • A. 

      Tonicity; osmolarity

    • B. 

      Osmolarity; diffusion

    • C. 

      Osmolarity; tonicity

    • D. 

      Osmolarity; molarity

    • E. 

      Tonicity; diffusion


  • 5. 
    Water flows through a selectively permeable membrane in a process called __________, but water molecules cross the membrane more easily through channels of transmembrane proteins called __________.
    • A. 

      Osmosis; water pumps

    • B. 

      Osmosis; aquaporins

    • C. 

      Osmosis; uniport

    • D. 

      Filtration; aquaporins

    • E. 

      Filtration; water pumps


  • 6. 
    Facilitated diffusion and active transport have in common that both
    • A. 

      Are processes involving transport of a solutes up its concentration gradient.

    • B. 

      Are processes involving transport of a solutes down its concentration gradient.

    • C. 

      Are processes involving the use of energy provided by ATP

    • D. 

      Are processes ATP independent

    • E. 

      Are cases of carrier-mediated transport.


  • 7. 
    The greater the concentration gradient the faster the diffusion rate.
    • A. 

      True

    • B. 

      False


  • 8. 
    The sodium-potassium (Na+-K+) pump transports both sodium and potassium __________ their concentration gradients in a process called ____________.
    • A. 

      Up; active transport

    • B. 

      Up; facilitated transport

    • C. 

      Up; cotransport

    • D. 

      Down; active transport

    • E. 

      Down; countertransport


  • 9. 
    A red blood cell is placed in a hypertonic solution. The concentration of solutes in the solution is __________ than the concentration of solutes in the intracellular fluid and will cause the cell to ______________.
    • A. 

      Higher; swell

    • B. 

      Lower; swell

    • C. 

      Higher; shrink

    • D. 

      Lower; shrink

    • E. 

      Lower; burst


  • 10. 
    Which of these is an example of active transport?
    • A. 

      Diffusion of oxygen from a place of high concentration to a place of lower concentration

    • B. 

      Facilitated diffusion of K+

    • C. 

      Transport of glucose down its concentration gradient

    • D. 

      Transport of Na+ from a place of low concentration to a place of higher concentration

    • E. 

      Transport of Cl- following its concentration gradient


  • 11. 
    Which of the following processes could occur only through the plasma membrane of a living cell?
    • A. 

      Facilitated diffusion

    • B. 

      Simple diffusion

    • C. 

      Filtration

    • D. 

      Osmosis

    • E. 

      Active transport


  • 12. 
    What function would immediately cease if the ribosomes of a cell were destroyed?
    • A. 

      Exocytosis

    • B. 

      Active transport

    • C. 

      Ciliary action

    • D. 

      Protein synthesis

    • E. 

      Osmosis


  • 13. 
    Microvilli and cilia differ in their function but have the same internal structure.
    • A. 

      True

    • B. 

      False


  • 14. 
     ______ provide motility to a cell, ______ act as sensory "antenna" in many cells, and ____________ increase cell's surface area.
    • A. 

      Cilia; microvilli; flagella

    • B. 

      Microvilli; cilia; flagella

    • C. 

      Microvilli; flagella; cilia

    • D. 

      Flagella; microvilli; cilia

    • E. 

      Flagella; cilia; microvilli


  • 15. 
    Cells lining the small intestine are specialized for absorption of nutrients. Their plasma membrane has ?
    • A. 

      Flagella

    • B. 

      Cilia

    • C. 

      Microvilli

    • D. 

      Glycocalyx

    • E. 

      Dynein arms


  • 16. 
    A patient was severely dehydrated, losing a large amount of fluid. The patient was given intravenous fluids of Normal saline. Normal saline is ________ to your blood cells and is about __________ NaCl.
    • A. 

      Isotonic; 9%

    • B. 

      Isotonic; 0.9%

    • C. 

      Hypertonic; 9%

    • D. 

      Hypotonic; 0.9%

    • E. 

      Hypotonic; 9%


  • 17. 
    These are all membranous organelles except
    • A. 

      Mitochondria

    • B. 

      Ribosomes

    • C. 

      Nucleus

    • D. 

      Endoplasmic reticulum

    • E. 

      The Golgi complex.


  • 18. 
    An _______________ is composed of two or more tissues types, whereas ____________ are microscopic structures in a cell.
    • A. 

      Organ system, organs

    • B. 

      Organ system, organelle

    • C. 

      Organ, organelles

    • D. 

      Organ, molecules

    • E. 

      Organelle, molecules


  • 19. 
     ____________ gives structural support, determines the shape of a cell, and directs the movement of substances through the cell.
    • A. 

      Cholesterol

    • B. 

      The nucleus

    • C. 

      The plasma membrane

    • D. 

      The Golgi complex

    • E. 

      The cytoskeleton


  • 20. 
    Copying genetic information from DNA into RNA is called ________________________, whereas using the information contained in mRNA to make a polypeptide is called ________________________.
    • A. 

      Transcription; translation

    • B. 

      Translation; transcription

    • C. 

      DNA replication; translation

    • D. 

      DNA duplication; transcription

    • E. 

      DNA translation; RNA transcription


  • 21. 
    Transcription occurs in the _________________, but most translation occurs in the _____________.
    • A. 

      Nucleus; cytoplasm

    • B. 

      Nucleus; nucleolus

    • C. 

      Cytoplasm; nucleus

    • D. 

      Nucleolus; cytoplasm

    • E. 

      Nucleolus; rough endoplasmic reticulum


  • 22. 
    After translation, a protein may undergo structural changes called ________________ modifications.
    • A. 

      Splicing

    • B. 

      Posttranscriptional

    • C. 

      Posttranslational

    • D. 

      Polyribosomal

    • E. 

      Secretory


  • 23. 
    All of the following are directly involved in translation except
    • A. 

      DNA

    • B. 

      MRNA

    • C. 

      TRNA

    • D. 

      RRNA

    • E. 

      Ribosomes


  • 24. 
    This figure shows translation of mRNA. What does "A" show?
    • A. 

      The molecule that carries codons

    • B. 

      The molecule that carries anticodons

    • C. 

      The molecule that carries base triplets

    • D. 

      The molecule that carries amino acids

    • E. 

      The molecule that carries tRNA


  • 25. 
    This figure shows translation of mRNA. What does "E" show?
    • A. 

      A newly synthesized amino acid

    • B. 

      A newly synthesized polypeptide

    • C. 

      A newly synthesized nucleic acid

    • D. 

      MRNA

    • E. 

      TRNA


  • 26. 
    This figure shows translation of mRNA. What does "C" show?
    • A. 

      MRNA

    • B. 

      DNA

    • C. 

      TRNA

    • D. 

      MRNA bound to one amino acid

    • E. 

      TRNA bound to one amino acid


  • 27. 
    The enzyme RNA polymerase participates in translation.
    • A. 

      True

    • B. 

      False


  • 28. 
     Which of the following omits some stage(s) of the cell cycle?
    • A. 

      G1, S, G2, mitotic phase

    • B. 

      Interphase, mitotic phase

    • C. 

      G1, DNA replication, G2, mitotic phase

    • D. 

      Prophase, metaphase, anaphase, telophase, cytokinesis

    • E. 

      Interphase, prophase, metaphase, anaphase, telophase, cytokinesis


  • 29. 
    After mitosis each chromosome consists of two parallel filaments called sister chromatids.
    • A. 

      True

    • B. 

      False


  • 30. 
    Mitosis is responsible for embryonic development and tissue growth.
    • A. 

      True

    • B. 

      False


  • 31. 
    Cytokinesis overlaps with which phase of mitosis?
    • A. 

      The S phase

    • B. 

      Telophase

    • C. 

      Metaphase

    • D. 

      Prophase

    • E. 

      Interphase


  • 32. 
    Which of these processes occurs during a cell's first gap (G1) phase?
    • A. 

      DNA is semiconservatively replicated

    • B. 

      The nuclear envelope breaks down.

    • C. 

      The cell synthesizes the enzymes that control mitosis

    • D. 

      The cell synthesizes proteins and grows.

    • E. 

      The chromatin condenses into visible chromosomes.


  • 33. 
    A cell finishing mitosis has ________________ DNA molecules, while a cell finishing DNA replication has ______________ DNA molecules.
    • A. 

      46; 46

    • B. 

      46; 92

    • C. 

      46; 23

    • D. 

      23; 46

    • E. 

      23; 23


  • 34. 
    If one allele is not phenotypically expressed in the presence of another, we say that it is a(an) ________________ allele.
    • A. 

      Homozygous

    • B. 

      Heterozygous

    • C. 

      Recessive

    • D. 

      Dominant

    • E. 

      Suppressed


  • 35. 
    Hemophilia is caused by a sex-linked recessive allele. This means that
    • A. 

      Women can be carriers but cannot get hemophilia

    • B. 

      The gene is found on the Y chromosome

    • C. 

      A man can give the allele to his son but not to his daughter

    • D. 

      A son who has hemophilia inherited the allele from his mother.

    • E. 

      A son who has hemophilia inherited the allele from his father.


  • 36. 
     Since there are no genes coding for carbohydrates, nucleic acids, or lipids, how do cells produce them?
    • A. 

      Enzymes encoded by genes synthesize these products

    • B. 

      Cells are born with all the products they need

    • C. 

      Cells absorb these products by endocytosis.

    • D. 

      Cells import these products from older cells

    • E. 

      Cells can produce carbohydrates, nucleic acids, and lipids out of proteins.


  • 37. 
    ___________________ are turned on or off by regulatory proteins in accordance with changing needs for the ___________________ they encode.
    • A. 

      Enzymes; products

    • B. 

      Ribosomes; proteins

    • C. 

      Genes; proteins

    • D. 

      Proteins; genes

    • E. 

      Genes; ribosomes


  • 38. 
    The human genome consists of?
    • A. 

      About 35,000 genes

    • B. 

      Over 2 million genes

    • C. 

      A, T, C, G, and U

    • D. 

      DNA and RNA.

    • E. 

      Genotype and phenotype


  • 39. 
    Many genes occur in alternative forms called alleles.
    • A. 

      True

    • B. 

      False


  • 40. 
    The stage at which chromosomes aggregate along the equator of a cell is
    • A. 

      Prophase

    • B. 

      Metaphase

    • C. 

      Anaphase

    • D. 

      Telophase

    • E. 

      Interphase


  • 41. 
    A karyotype shows the __________________ chromosomes sorted and isolated from a cell in ________________.
    • A. 

      23; interphase

    • B. 

      23; metaphase

    • C. 

      46; prophase

    • D. 

      46; metaphase

    • E. 

      46; S phase


  • 42. 
    All of the body's nonreproductive cells, called ________________, usually have ______________ and are thus called ____________ cells.
    • A. 

      Germ cells; 23 pairs of chromosomes; haploid

    • B. 

      Germ cells; 23 chromosomes; haploid

    • C. 

      Somatic cells; 23 pairs of chromosomes; haploid

    • D. 

      Somatic cells; 23 pairs of chromosomes; diploid

    • E. 

      Somatic cells; 23 chromosomes; diploid


  • 43. 
    Macronutrients include
    • A. 

      Carbohydrates, lipids, proteins, but no water

    • B. 

      Carbohydrates, lipids, proteins, and water

    • C. 

      Sodium, potassium,calcium, chloride, and phosphorus

    • D. 

      Nucleic acids, carbohydrates, lipids, and proteins

    • E. 

      Sodium, potassium, carbohydrates, lipids, and proteins.


  • 44. 
    Most carbohydrates in the body are found in
    • A. 

      Adipose tissue

    • B. 

      Blood

    • C. 

      Pancreas

    • D. 

      Muscular tissue

    • E. 

      Liver


  • 45. 
    Lipid functions include all of the following except
    • A. 

      Forming myelin around nerve fibers

    • B. 

      Forming of the skeletal muscle fibers

    • C. 

      Plasma membrane structure

    • D. 

      Cushioning around soft organs

    • E. 

      Chemical structure of hormones


  • 46. 
    _________  constitutes the so-called "bad cholesterol."
    • A. 

      Low-density lipoproteins

    • B. 

      Triglycerides

    • C. 

      High-density lipoproteins

    • D. 

      Chylomicrons

    • E. 

      Very-low-density lipoproteins


  • 47. 
    Which is the healthiest ratio?
    • A. 

      High SFA : low HDL

    • B. 

      High LDL : low HDL

    • C. 

      High HDL : low LDL

    • D. 

      High chylomicron : low LDL

    • E. 

      High LDL : low chylomicron


  • 48. 
    Carbohydrates function as structural components of other molecules including all of the following except
    • A. 

      Nucleic acids

    • B. 

      Glycolipids

    • C. 

      Glycoproteins

    • D. 

      Amino acids

    • E. 

      ATP


  • 49. 
    Oxygen ?
    • A. 

      Transports electrons to the mitochondrion.

    • B. 

      Is the final electron acceptor in aerobic respiration

    • C. 

      Directly transfers electrons and protons to NAD+ and FAD

    • D. 

      Directly receives electrons and protons from NAD+ and FAD

    • E. 

      Is the only substrate of aerobic respiration.


  • 50. 
    _______ is a product of aerobic respiration.
    • A. 

      Lactic acid

    • B. 

      Glucose

    • C. 

      Oxygen

    • D. 

      Carbon dioxide

    • E. 

      Pyruvic acid


  • 51. 
    Heat exhaustion results from
    • A. 

      Extreme electrolyte loss in the sweat.

    • B. 

      Denaturation of proteins in the brain tissue.

    • C. 

      Excessive heat loss from the body.

    • D. 

      A high rate of conduction and convection.

    • E. 

      A high humidity that retards evaporative cooling.


  • 52. 
    Shivering warms the body because it increases the rate of
    • A. 

      Radiation

    • B. 

      Conduction

    • C. 

      ATP hydrolysis

    • D. 

      Vasodilation

    • E. 

      Glycolysis


  • 53. 
     The quickest physiological mechanism for achieving moderate heat loss is
    • A. 

      Convection

    • B. 

      Cutaneous vasoconstriction

    • C. 

      Nonshivering thermogensis

    • D. 

      Cutaneous vasodilation

    • E. 

      Diaphoresis


  • 54. 
    The loss of body heat by conduction can be enhanced by
    • A. 

      Convection

    • B. 

      Evaporation

    • C. 

      Nonshivering thermogenesis

    • D. 

      Shivering thermogenesis

    • E. 

      Radiation


  • 55. 
    A nude body at a room temperature of 21°C (70°F) loses most of its heat by
    • A. 

      Evaporation

    • B. 

      Conduction

    • C. 

      Convection

    • D. 

      Radiation

    • E. 

      Forced convection


  • 56. 
    During periods of fasting, fat is said to have a protein-sparing effect because the body
    • A. 

      Oxidizes its spare protein before it depletes its fat reserves.

    • B. 

      Metabolizes fats and proteins through the same metabolic pathways.

    • C. 

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

    • D. 

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

    • E. 

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


  • 57. 
    Only approximately _____________% of the energy in the glucose molecule winds up in ATP, the rest is lost as body heat.
    • A. 

      10

    • B. 

      20

    • C. 

      40

    • D. 

      80

    • E. 

      90


  • 58. 
    Glycogenesis is stimulated by ____________, and glycogenolysis is stimulated by ____________.
    • A. 

      Insulin; glucagon and epinephrine

    • B. 

      Insulin; aldosterone

    • C. 

      Growth hormone; glucagon and epinephrine

    • D. 

      Growth hormone; cortisol

    • E. 

      Growth hormone; insulin


  • 59. 
    Fats should account for about _______ percent of the daily caloric intake.
    • A. 

      5

    • B. 

      10

    • C. 

      30

    • D. 

      50

    • E. 

      60


  • 60. 
     _____________ does not raise total metabolic rate (TMR).
    • A. 

      Starvation

    • B. 

      Anxiety

    • C. 

      Fever

    • D. 

      Eating a big meal

    • E. 

      Pregnancy


  • 61. 
    ___________ is secreted during the postabsorptive state.
    • A. 

      Gastrin

    • B. 

      Insulin

    • C. 

      Growth hormone

    • D. 

      Cholecystokinin (CCK)

    • E. 

      Secretin


  • 62. 
    The basal metabolic rate should be measured when a person
    • A. 

      Is engaged in normal physical activity but not strenuous exercise.

    • B. 

      Is in the absorptive state.

    • C. 

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

    • D. 

      First rises in the morning.

    • E. 

      Is sleeping


  • 63. 
    During the absorptive state
    • A. 

      Lipolysis is active.

    • B. 

      Fatty acids are oxidized for fuel.

    • C. 

      Gluconeogenesis is suppressed.

    • D. 

      Blood glucose falls.


  • 64. 
    People on weight-loss diets often lose weight quickly at first, but then more slowly. This is for all the following reasons except
    • A. 

      The initial weight loss is mostly fat. the initial weight loss is mostly fat.

    • B. 

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

    • C. 

      Will power often weakens as the diet progresses.

    • D. 

      The body lowers its metabolic rate when it loses weight.

    • E. 

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


  • 65. 
    During the postabsorptive state
    • A. 

      Blood glucose rises

    • B. 

      Lipids are stored in adipose tissue

    • C. 

      Glycerol is used for gluconeogenesis.

    • D. 

      Protein synthesis is active.

    • E. 

      Glucose is stored by glycogenesis.


  • 66. 
    During the postabsorptive state
    • A. 

      Blood glucose rises

    • B. 

      Lipids are stored in adipose tissue

    • C. 

      Glycerol is used for gluconeogenesis.

    • D. 

      Protein synthesis is active.

    • E. 

      Glucose is stored by glycogenesis.


  • 67. 
    During the postabsorptive state
    • A. 

      Blood glucose rises

    • B. 

      Lipids are stored in adipose tissue

    • C. 

      Glycerol is used for gluconeogenesis.

    • D. 

      Protein synthesis is active.

    • E. 

      Glucose is stored by glycogenesis.


  • 68. 
    The liver performs all of the following functions except
    • A. 

      Secretion of digestive enzymes.

    • B. 

      Glycogenesis

    • C. 

      Detoxification

    • D. 

      Phagocytosis

    • E. 

      Synthesis of plasma proteins


  • 69. 
    The liver does not
    • A. 

      Convert ammonia to urea.

    • B. 

      Produce insulin and glucagon.

    • C. 

      Carry out most beta oxidation.

    • D. 

      Synthesize cholesterol.

    • E. 

      Thesize glucose from fats and amino acids.


  • 70. 
    The highest rate of tissue protein turnover happens in the
    • A. 

      Intestinal mucosa.

    • B. 

      Gastric mucosa.


  • 71. 
    The first step in using amino acids as fuel is to _____________ them
    • A. 

      Synthesize

    • B. 

      Aminate

    • C. 

      Transaminate

    • D. 

      Deaminate

    • E. 

      Digest


  • 72. 
    Incomplete fatty acid oxidation produces ____________, which might lead to ____________.
    • A. 

      Pyruvic acid; acidosis

    • B. 

      Triglycerides; new triglycerides

    • C. 

      Ketone bodies; acidosis

    • D. 

      Acetyl-CoA; acidosis

    • E. 

      Glycerol; alkalosis


  • 73. 
    Oxidation of a typical fatty acid can yield
    • A. 

      129 ATP.

    • B. 

      38 ATP

    • C. 

      2 ATP

    • D. 

      36 ATP

    • E. 

      18 ATP


  • 74. 
    What metabolic process produces ammonia?
    • A. 

      Beta oxidation of α-ketoglutaric acid

    • B. 

      Lipolysis

    • C. 

      Transamination of urea

    • D. 

      Deamination of glutamic acid

    • E. 

      Amination of keto acids


  • 75. 
    What metabolic process produces ammonia?
    • A. 

      Beta oxidation of α-ketoglutaric acid

    • B. 

      Lipolysis

    • C. 

      Transamination of urea

    • D. 

      Deamination of glutamic acid

    • E. 

      Amination of keto acids


  • 76. 
    Fatty acids are catabolized by a process called
    • A. 

      Ketogenesis

    • B. 

      Beta oxidation

    • C. 

      Lipogenesis

    • D. 

      The fat-sparing effect

    • E. 

      Lipolysis


  • 77. 
    Most of the NADH contributing energy to ATP synthesis is produced by
    • A. 

      Anaerobic fermentation.

    • B. 

      Glycolysis

    • C. 

      The citric acid cycle.

    • D. 

      Electron transfer from FADH2.

    • E. 

      The mitochondrial proton pumps.


  • 78. 
    Glycolysis and aerobic respiration collectively produce up to ____________ ATP per glucose, whereas anaerobic fermentation produces _______________.
    • A. 

      38; none

    • B. 

      38; 2

    • C. 

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

    • D. 

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

    • E. 

      38; 36


  • 79. 
    Which of the following compounds yields the most ATP per molecule?
    • A. 

      Glycogen

    • B. 

      Lactic acid

    • C. 

      Acetyl-CoA

    • D. 

      Pyruvic acid

    • E. 

      Glucose


  • 80. 
    Most body 's fat is stored in
    • A. 

      HDL

    • B. 

      Cholesterol

    • C. 

      Triglycerides

    • D. 

      LDL

    • E. 

      Fatty acids


  • 81. 
    The synthese of glucose from amino acids belongs to a metabolic process called
    • A. 

      Gluconeogenesis

    • B. 

      Glycolysis

    • C. 

      Glycogen catabolism

    • D. 

      Glycogenolysis

    • E. 

      Glycogenesis


  • 82. 
    ________ is a product of glycolysis
    • A. 

      Pyruvic acid

    • B. 

      Lactic acid

    • C. 

      Acetyl-CoA

    • D. 

      Carbon dioxide

    • E. 

      Glucose


  • 83. 
    Vitamin                        deficiency is the most common worldwide.
    • A. 

      D(calcitroil)

    • B. 

      C(ascorbic acid)

    • C. 

      E (a- tocopherol)

    • D. 

      A (retinol)

    • E. 

      B6 (pyridoxine)


  • 84. 
    Which of the following would you expect to be in a state of negative nitrogen?
    • A. 

      Patients with muscle atrophy

    • B. 

      Growing children

    • C. 

      Weightlifters

    • D. 

      Body builders

    • E. 

      Pregnant women


  • 85. 
    Minerals are ________   , whereas vitamins are __________.
    • A. 

      Micronutrients; macronutrients

    • B. 

      Inorganic elements; organic compounds

    • C. 

      Water-soluble elements; lipid-soluble compunds

    • D. 

      Incomplete nutrients; complete nutrients

    • E. 

      Inessential nutrients; essential nutrients


  • 86. 
    Proteins are associated with all these functions except
    • A. 

      Enzymatic reactions

    • B. 

      Serving as cofactors for enzymes

    • C. 

      Transport of blood lipids

    • D. 

      Muscle contraction

    • E. 

      Blood viscosity and osmolarity


  • 87. 
    High-quality _________  proteins are those that provide all the essential amino acids
    • A. 

      Incomplete

    • B. 

      Net

    • C. 

      Fibrous

    • D. 

      Complete

    • E. 

      Globular


  • 88. 
    Most protein in the body is found in ________
    • A. 

      The muscular system

    • B. 

      The skeletal system

    • C. 

      The lymphatic system

    • D. 

      The integumentary system

    • E. 

      The cardiovascular system


  • 89. 
    HDL comes from _________?
    • A. 

      The pancreas

    • B. 

      The diet

    • C. 

      The liver

    • D. 

      The small intestines

    • E. 

      The gallbladder


  • 90. 
    ___________ yield about 4 kcal/g when completely oxidized, whereas _________  yield about 9kcal/g
    • A. 

      Carbohydrates and fats; proteins

    • B. 

      Proteins and carbohydrates; fats

    • C. 

      Fats; carbohydrates and proteins

    • D. 

      Proteins; fats and carbohydrates

    • E. 

      Carbohydrates;fats and proteins


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