CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine.
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Only proteins are formed from amino acids joined by peptide bonds.
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Only polysaccharides can be folded and twisted to very specific shapes.
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Only proteins can be large molecules with thousands of subunits.
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Detailed explanation-1: -Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides? Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine.
Detailed explanation-2: -The main difference between proteins and polysaccharides is that proteins are composed of amino acids, while polysaccharides are composed of long chains of sugar molecules.
Detailed explanation-3: -In a dehydration synthesis reaction, the hydrogen of one monomer combines with the hydroxyl group of another monomer, releasing a molecule of water (Figure 3.2). At the same time, the monomers share electrons and form covalent bonds. As additional monomers join, this chain of repeating monomers forms a polymer.
Detailed explanation-4: -49) Polysaccharides, lipids, and proteins are similar in that they are synthesized from monomers by dehydration reactions B are synthesized as a result of peptide bond formation between monomers are decomposed into their subunits by dehydration reactions D) are synthesized from monomers by the process of hydrolysis.
Detailed explanation-5: -They both give energy to the body when required and consist of repeating units to make a complete structure. They are the most important and useful carbohydrates found in the body.