33.Which of the following is a function of a protein? A) stores genetic material

Question

33.Which of the following is a function of a protein? A) stores genetic material B) acts as a catalyst C) is a major subunit of cellulose D) primary structural component of a cell membrane E) provides energy for a muscle contraction ABjall of the above 34. A protein containing more than one polypeptide chain exhibits the structure level of protein A) primary B) secondary D) quaternary infinite C) tertiary 35.The most important physical characteristic of lipids with regard to living organisms is that they A) are hydrophobic. B) are very large and therefore difficult to store. C) dissolve easily in water D) are typically a form of waste product that is difficult to eliminate. E) are more dense than water. 36-37.The diagram below are the structures of Palmitic and Linoleic acids.Identify whether they are A) saturated B) monounsaturated C) polyursaturated Palmitic acid Linoleic acid 36.Palmitic acid is 37.Linoleic acid is- 38.A glycerol with three fatty acids attached is referred to as a fatty acid fatty acid. A) prostaglandin D) protein B) nucleic acid E) triglyceride 39.Proteins differ from one another because A) the peptide bonds linking amino acids differ from protein to protein. B) the sequence of amino acids in the polypeptide chain differs from protein to proteirn. C) each protein contains its own unique sequence of sugar molecules. D) the number of nucleotides found in each protein varies from molecule to molecule. 40. Which of the following characteristics of protein will remain intact if the protein is denatured? B) the function of the protein D) the binding properties of the protein A) the shape of the protein C) the amino acids in the protein C) neutral B) weakly acidic. E)strongly basic 41.A solution with a pH of 6.8 is A) strongly acidic. D) weakly basic

Explanation / Answer

33. Option- E ( provides energy for muscle contraction)

Protein has many functions in the human body like-

a) protein are building blocks like they make hair,nail,muscles

b) hormones are protein in nature which controls various body functions like growth n metabolic activities of the body

c) oxygen transport

d) blood clotting

e) muscle contraction

34) Option - D (Quarternary Structure)

primary, secondary and tertiary level proteins have a single polypeptide chain. However, in some cases some proteins are consists of many polypeptide chains known as subunits and this structure of proteins are known as quarternary structures

35) option - A (Lipids are hydrophobic)

Lipid includes oils, fats, and waxes which is not able to dissolve in water. however, they dissolve in organic solvents, such as benzene, acetone, alcohol, carbon tetrachloride (Ccl4), and chloroform.

36) palmitic Acid is SATURATED fatty acid (found in fats and waxes including body lipids and olive oils)

37) Linoleic Acid is a polyunsaturated fatty acid found mostly in plant oils

38) Option -E (triglycerides) also known as triacylglycerols

40) Option - C

in case of protein denaturation, the sequence of the amino acids remain the same as denaturation reactions are not strong enough to break the peptide bonds

41) Option - B (weakly acidic)

pH value of 7 is neutral. 0-7 is acidic and 7-14 is alkaline

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