Nucleic Acids

Which statements explain the primary difference between the structure of a nucleic acid and the structure of a protein?

• A nucleic acid has alternating base pairs. A protein has alternating peptides.

• Nitrogen bases form the backbone of a nucleic acid. Peptides form the backbone of a protein.

• Nucleotides link together to form a nucleic acid. Amino acids link together to form a protein.

• A nucleic acid is held together by the sugar-phosphate complex. A protein is held together by the carbon-carbon bonds.

Tags

NGSS.HS-LS1-1

Which biomolecules are found in all organisms?

• glucose, maltose, fructose, sucrose

• adenine, cytosine, thymine, guanine

• chlorophyll, chitin, pepsin, glycogen

• cholesterol, phospholipid, cellulose, gibberellin

All organisms contain DNA and RNA. What are the subunits of DNA and RNA?

• simple sugars

• amino acids

• carbohydrates

• nucleotides

If a DNA molecule is 22% adenine in any organism, which percentage of thymine will that DNA molecule contain?

• 22%

• 28%

• 44%

• 56%

If in any organism a DNA molecule is 24% cytosine, how much adenine will that DNA molecule contain?

• 24%

• 26%

• 48%

• 52%

Which characteristic BEST explains why carbon is relevant to living organisms?

• Carbon is the most common element on Earth.

• Carbon can form a wide variety of molecules.

• Many carbon isotopes are radioactive.

• Many carbon allotropes occur in nature

Tags

NGSS.HS-LS1-6

Nucleotides contain a 4 carbon sugar.

• True

• False

What can lipids be used for?

• Energy Storage

• Immediate energy

• Information storage

• speed up reactions

What are the subunits of DNA and their function?

• nucleotides that store information

• monosaccharides that provide quick energy for the cell

• lipids that store energy and provide insulation

• proteins that provide the building blocks for the structural components of organisms

Tags

NGSS.HS-LS1-1

Which organic molecule is paired with its basic building block?

• carbohydrate : amino acids

• nucleic acid : nucleotides

• lipid : monosaccharides

• protein : fatty acid