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DPT Physio Questions

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Which of the following is not true of proteins? a. They have both functional and structural roles in the body b. They appear to be molecular carriers of coded hereditary information c. Their function depends on their three-dimensional shape d. They may be denatured or coagulated by heat or acid...

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  • April 22, 2023
  • 17
  • 2022/2023
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DPT Physio Questions
Which of the following is not true of proteins?

a. They have both functional and structural roles in the body

b. They appear to be molecular carriers of coded hereditary information

c. Their function depends on their three-dimensional shape

d. They may be denatured or coagulated by heat or acidity - ✔✔b. They appear to be molecular

carriers of coded hereditary information



Which of the following is not true of a polar chemical bond?

a. It is ionized

b. It has opposite electrical charge at each end

c. It is covalent

d. It has no net electrical charge - ✔✔a. It is ionized (water is a polar covalent bond)



Carbohydrates:

a. Are composed of only carbon and hydrogen atoms

b. Are the major organic molecules of the body by mass

c. Have carbon and oxygen atoms in equal proportions

d. Are defined by their inclusion of nitrogen in their structure

e. Are nonpolar molecules - ✔✔c. Have carbon and oxygen atoms in equal proportions



What is a chain of more than 50 amino acids called?

,a. A protein

b. Nucleic acid

c. Polysaccharide

d. Polypeptide - ✔✔a. A protein



Sucrose is a:

a. A disaccharide

b. Monosaccharide

c. Polysaccharide

d. Triglyceride - ✔✔a. A disaccharide



Choose the answer that best describes fibrous proteins

a. Are usually called enzymes

b. Are very stable and insoluble in water

c. Are cellular catalysts

d. Rarely exhibit secondary structure - ✔✔b. Are very stable and insoluble in water



The four elements that make up about 96% of body matter are

a. Nitrogen, hydrogen, calcium, sodium

b. Carbon, oxygen, phosphorous, calcium

c. Carbon, oxygen, hydrogen, nitrogen

d. Sodium, potassium, hydrogen, oxygen - ✔✔c. Carbon, oxygen, hydrogen, nitrogen

, Carbohydrates are stored in the muscle and liver in the form of

a. Glycogen

b. Cholesterol

c. Glucose

d. Triglyceride - ✔✔a. Glycogen



The basic structural material of the body consists of

a. Nucleic acids

b. Proteins

c. Lipids

d. Carbohydrates - ✔✔b. Proteins



Which is a correct description of nucleic acids?

a. They are long polymers of amino acids, folded into an alpha helix.

b. They are polymers of subunits containing glucose, a phosphate group, and an amino acid.

c. They are polymers of subunits containing a phosphate group, a sugar, and a purine or

pyrimidine base.

d. They are polymers of subunits containing glucose and amino acids.

e. They are polymers of subunits containing a phosphate group, a sugar, and an amino acid -

✔✔c. They are polymers of subunits containing a phosphate group, a sugar, and a purine or

pyrimidine base.

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