Section A Multiple choice (3 marks)1. Which statement best explains why proteins are polymers that can have such a large rangeof structures?A. Each individual cell has a unique proteome.B. Each protein can be folded into many different three-dimensional shapes.C. All proteins are polymers of an amino acid.D. There are twenty kinds of amino acids that can be used as monomers for polypeptides.2. Which of the following contribute to the almost infinite variety of peptide chains?I. The sequence of amino acids in the peptide chain.II. The peptide bonds in the polypeptide chain.III. The types of carbohydrate monomers in the peptide chain.IV. Mutations in protein structure.A. All of the above.B. I, II and III only.C. I only.D. I and IV only3. Which is the most accurate description of, “denaturation”?A. The effect of temperature on proteins.B. The change in properties of peptides.C. The change in structure of a peptide.D. The effect of pH on protein structure
Question
Section A Multiple choice (3 marks)1. Which statement best explains why proteins are polymers that can have such a large rangeof structures?A. Each individual cell has a unique proteome.B. Each protein can be folded into many different three-dimensional shapes.C. All proteins are polymers of an amino acid.D. There are twenty kinds of amino acids that can be used as monomers for polypeptides.2. Which of the following contribute to the almost infinite variety of peptide chains?I. The sequence of amino acids in the peptide chain.II. The peptide bonds in the polypeptide chain.III. The types of carbohydrate monomers in the peptide chain.IV. Mutations in protein structure.A. All of the above.B. I, II and III only.C. I only.D. I and IV only3. Which is the most accurate description of, “denaturation”?A. The effect of temperature on proteins.B. The change in properties of peptides.C. The change in structure of a peptide.D. The effect of pH on protein structure
Solution
-
The statement that best explains why proteins are polymers that can have such a large range of structures is D. There are twenty kinds of amino acids that can be used as monomers for polypeptides. This is because the sequence and combination of these amino acids can vary greatly, leading to a vast array of possible protein structures.
-
The factors that contribute to the almost infinite variety of peptide chains are I. The sequence of amino acids in the peptide chain and IV. Mutations in protein structure. So, the answer is D. I and IV only. The types of carbohydrate monomers in the peptide chain (III) do not contribute as proteins are not made of carbohydrates. The peptide bonds in the polypeptide chain (II) are the same in all proteins and do not contribute to their variety.
-
The most accurate description of "denaturation" is C. The change in structure of a peptide. Denaturation refers to the process where the protein loses its structure due to external factors like temperature or pH, which can disrupt the bonds that hold the protein in its shape.
Similar Questions
teins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides?Ask Studybuddy (Login to use)Group of answer choicesOnly polysaccharides are comprised of repeating units of cytosine, adenine, guanine and thymine.Only proteins are formed from amino acids joined by peptide bondsOnly polysaccharides can be folded and twisted to very specific shapesOnly proteins can be large molecules with thousands of subunits
Which class of biological molecule is made up of a long polypeptide chain?A.Nucleic acidsB.CarbohydratesC.LipidsD.Proteins
Proteins are made out of subunits called __________.Question 7Select one:a.polypeptidesb.monosaccharidesc.amino acidsd.nucleotides
Complete the following sentence: It is possible to produce different types of polymers by varying the types of ______ ; Your answer here; of the bonds present inside the polymer chains
What type of polymer is made up of many nucleotide monomers?Multiple choice question.LipidNucleic acidCarbohydrateProtein
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.