Introduction:
The monomer is a smaller subunit of molecules, which bond or join with the identical molecules to form a
Answer to Problem 1U
Correct answer:
The polymer is formed by the removal of an –OH group and a hydrogen atom between the two monomers. Therefore, option b is correct.
Explanation of Solution
Reason for the correct statement:
A polymer is a long molecule that is formed by the bonding between the smaller units of monomer molecules. The long chains of polymers are formed by the dehydration reaction. In a dehydration reaction, two monomer molecules form a covalent bond by the removal of a hydroxyl ion (-OH) of one monomer and the removal of hydrogen ion of another monomer.
Option b is given as “by the removal of as –OH group and a hydrogen atom.”
As the polymer molecules are formed by the removal of –OH group of one monomer and the hydrogen atom of another monomer, option b is the right answer.
Reasons for the incorrect statements:
Option a is given as “from the growth of the chain of carbon atom.”
The polymer is formed by the bond formation between the –OH and hydrogen group present in two monomers, not from the chain of carbon atoms. So, it is a wrong answer.
Option c is given as “by the addition of an –OH group and a hydrogen atom.”
The polymers are formed by dehydration reaction in which the removal of –OH and hydrogen atom occurs. So, it is a wrong answer.
Option d is given as “through hydrogen bonding.”
The polymers are formed with the formation of a covalent bond between the two monomer unit and not through hydrogen bonding. So, it is a wrong answer.
Hence, options a, c, and d are incorrect.
The polymers are formed by the dehydration reaction in which the covalent bond is formed between the two monomer subunit by removing the –OH group of one monomer unit and a hydrogen atom of another monomer unit.
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Chapter 3 Solutions
Biology
- Use complete sentences to explain what the terms monomer and polymer mean and include an example In Your answer from one of the four groups of macromolecules ?arrow_forwardWhich bond in a polypeptide backbone does not freely rotate? a. The bond between CO and NH b. The bond between C-alpha and NH c. The bond between C-alpha and CO d. The bond between C-alpha and C-beta c. d.arrow_forwardUse the table attached to make a graph and answer the following question. What happens when enzymes are not in their optimal pH (hint: link to protein structure)? How does this affect enzyme activityarrow_forward
- Which statement describes the bases pairing in nucleic acids? Purine bases always pair with other purine bases Purine bases can only pair with pyrimidine bases Adenine cannot pair with either uracil or thymine Hydrogen bonding can only occur between the pyrimidine bases Guanine is always paired with adeninearrow_forwardRead the question carefully & encircle the letter of thecorrect answer.1. Amino acids are the building blocks of which group of biomolecules?a. Proteins b. carbohydrates c. lipids d. nucleic acidsarrow_forwardHow is an acetyl group linked to a CoA molecule? a. by a phosphodiester bond b. by a thioester bond c. by an ether bond d. by an anhydride bondarrow_forward
- Give written answer with explanation and conclusion With respect to nucleic acids (a) what is meant by a mismatch, and (b) why are they important (or not important)? Be sure to include SPECIFIC examples.arrow_forwardIn order to isolate the DNA or RNA from the cells, what would be the first step? a. to block the mucleus from digesting the nucleic acid b.To precipiate the nucleic acid c. To break down the plasma membrane and the cell walls (plant cells) d.To remove protiens from the solutionsarrow_forwardWrite short answers. i. Why proteins lose their function upon change in their 3D structure?arrow_forward
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College