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Self-Quiz 1 (similar questions will appear in the Midterm and the

By Jane Stewart,2014-04-22 21:39
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Self-Quiz 1 (similar questions will appear in the Midterm and the

Self-Quiz 1 (similar questions will appear in the Midterm and the Final)

    Which is the INCORRECT association between monomer and polymer?

     A) monosaccharide - polysaccharide

     B) nucleic acid - polypeptide

     C) nucleotide - nucleic acid

     D) amino acid polypeptide

    Carbohydrates include all of the following EXCEPT ______.

     A) ribose

     B) glucose

     C) phospholipid

     D) starch

Dairy products contain the disaccharide _____, which some people are unable to

    digest.

     A) cellulose

     B) lactose

     C) starch

     D) glucose

    Carbohydrates are commonly described as _____.

     A) oils

     B) waxes

     C) sugars

     D) proteins

Which best describes a saturated fat?

     A) many C=C bonds in its fatty acids

     B) liquid at room temperature

     C) animal origin

     D) all of the above

    Lipids are generally _____ due to an absence of polar groups.

     A) hydrophobic

     B) hydrophilic

     C) inert

    The plasma membrane is primarily composed of _____.

     A) phospholipids

     B) waxes

     C) fats

     D) all of the above

    Which of the following statements about cholesterol is TRUE?

     A) It is a steroid.

     B) It is used to make the sex hormones, estrogen and testosterone.

     C) It has a backbone of four fused carbon rings.

     D) all of the above

The monomers of proteins are _____.

     A) amino acids

     B) monosaccharides

     C) glycerol

     D) nucleotides

Which of the following specific kinds of proteins defends us against infectious

    agents?

     A) hormones

     B) transport proteins

     C) enzymes

     D) antibodies

    The bond between two amino acids is ______.

     A) formed by hydrolysis

     B) an ionic bond

     C) nonpolar

     D) know as a peptide bond

    DNA is single-stranded, but RNA is double-stranded.

     A) True

     B) False

Concept pairs:

In no more than three sentences define each of the following concept pairs

    and the connection between them.

     Example:

    ATP ATP synthase

    ATP is an organic molecule that provides energy that powers most of the

    processes in the cell. ATP is an enzyme that synthesizes ATP molecules from

    ADP and a phosphate group.

Cholesterol lipids

Peptide protein

Thymine nucleic acid

Mitochondria membrane

Rough endoplasmic reticulum ribosomes

    Which of the following statements correctly describes glycolysis?

     A) Glycolysis occurs in the mitochondria.

     B) glycolysis requires O2.

     C) Glycolysis produces two molecules of pyruvate.

     D) all of the above

    The Krebs (Citric Acid) cycle turns twice for each original glucose molecule.

     A) True

     B) False

    The electrons that enter the electron transport system are carried there by _____.

     A) NADH

     B) FADH 2

     C) both A and B

    Use the space below to describe what is an enzyme? To which class of molecules does it belong? Give one example of an enzyme and explain what it does.

Which of the following organic molecules is an enzyme?

    A. testosterone

    B. glucose

    C. ATP synthase

    D. Flagellum

    Most of the ATP produced by cellular respiration is produced by oxidative phosphorylation and energy released by the electron transport system.

     A) True

     B) False

    The disease Polio is caused by Polio virus. What is the most dangerous outcome of Polio infection? Give an example of the ways that Polio can be transmitted. What is the major way to combat Polio?

    Measles are caused by a virus. What is the major way to combat this disease? Give an example of a country where this disease is still a serious problem.

    Give one example of a disease that originates from drinking unpurified (contaminated) water. Briefly (in two to three sentences) describe what happens when this disease is contracted and what can be done to prevent this disease. Give an example of a country where this disease is still a serious problem.

    Give one example of a disease that originates from poor sanitation (drinking unpurified water, lack of flush toilets, poor hygiene). How the disease is transmitted? What are the symptoms of this disease? What can be done to treat and/or prevent this disease?

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