BIOL 1201 Chapter : Mastering Biology Answers 2

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15 Mar 2019

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The secondary structure of a protein results from _____. Tertiary structure is not directly dependent on _____. Some regions of a polypeptide may coil or fold back on themselves. _____, and the coils or folds are held in place by _____. secondary structure hydrogen bonds. The building blocks or monomers of nucleic acid molecules are called _____. A hydrophobic amino acid r group (side group) would be found where in a protein? on the inside of the folded chain, away from water. The two strands of a dna double helix are held together by _____ that form between pairs of nitrogenous bases. A nucleotide is composed of a(n) _____. phosphate group, a nitrogen-containing base, and a five-carbon sugar. "conservation of energy" refers to the fact that _____. energy cannot be created or destroyed but can be converted from one form to another. Chemical energy is a form of _____ energy.

Related Questions

The sequence of amino acids is considered to be the ________ structure of a protein.

Select one:

a. secondary

b. tertiary

c. quaternary

d. primary

The pattern the backbone folds, for example alpha-helix or beta pleated sheet, is the ________ structure of a protein.

Select one:

a. quaternary

b. secondary

c. tertiary

d. primary

Which type of forces stabilizes the primary structure of a protein?

Select one:

a. Salt bridges

b. Hydrogen bonding between the carbonyl group and amino group

c. Dipole-dipole

d. Peptide bonds

The interaction of the side chains on the amino acids, for example hydrophobic attractions, is the ________ structure of a protein.

Select one:

a. quaternary

b. secondary

c. tertiary

d. primary

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Is DNA a protein if so what makes up proteins, if not what it is and what are its monomers called? Describe the primary, secondary, tertiary, and quaternary structure of DNA (this sub-question is independent of the answer to the first question).

Describe electrostatic bonds, covalent bonds, van der Waals interactions, and hydrogen bonds and give an example of each.

Which of the four classes of amino acids has side chains with the greatest hydrogen-bond-forming potential?

Which has the greatest potential to form electrostatic interactions?

Which class has the greatest potential for hydrophobic interactions?

Of the following amino acids, (K), (Y), and (F), which side-chains would you expect to be the most soluble in a polar aqueous solution? Which the least?

Would you agree with the statement that many different amino acid sequences can fold into the same basic tertiary structure? What data can you cite as evidence for your position?

1. _________________________ is the name of the process that produces proteins using RNA molecules.

a.Transcription

b Translation

c. Replication

d. Mutagenesis

2. The peptide bonding site on the ribosome:

a. A site

b. P site

c. E site

d. D site

3. The name given to the bond formed between two amino acids.

a. Hydrogen bond

b. Double bond

c. Peptide bond

d. Negative bond

4. __________________________ is the movement of the mRNA molecule on the ribosome to open up the A-site for the new incoming amino acid.

a. Transformation

b. Mutation

c. Translocation

d. Initiation

5. What does the term semi-conservative mean.

a. Replication of RNA is semi-conservative, each new strand consists of one old strand of RNA and one new strand of RNA.

b. Replication of DNA is semi-conservative, each new strand consists of one old strand of DNA and one new strand of DNA.

c. Replication of DNA is semi-conservative, each new strand consists of new strands of nucleotides.

d. Transcription of RNA is semi conservative.

6. This molecule functions during protein synthesis to recognize the codon and bring the proper amino acid back to the ribosome for translation.

a. mRNA

b. tRNA

c. rRNA

d. DNA polymerase

7. What is meant by the base-pairing rule.

a. Bases on a single strand of DNA are always found as pairs

b. Adenine always base pairs with guanine; cytosine with thymine

c. Adenine always base pairs with thymine; cytosine with guanine

d. Bases on a single strand of RNA are found in pair.

8. In this step of protein synthesis, amino acids are added to a growing polypeptide chain.

a. Initiation.

b. Elongation.

c. Termination.

d. Transpiration.

9. Three complementary bases found in a mRNA are called ____________________.

a. Anti-codon.

b. Triplet.

c. Doublet.

d. Codons.

10. Which statement best describes the job or function of the messenger RNA.

a. Carries the map of the gene sequence in the form of codons to the cytoplasm

for translation of the protein.

b. It transfers amino acids to the ribosome for protein synthesis.

c. It forms the ribosomes.

d. It helps replicate DNA.

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BIOL 1201 Chapter : Mastering Biology Answers 2

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