L.S. 1.1 - Organic Compounds

Which organic compound is correctly paired with its subunit?

• fatty acid and DNA

• protein and amino acid

• carbohydrate and glycerol

• lipid and glucose

Tags

NGSS.HS-LS1-1

Which can occur because two DNA strands are held together by weak hydrogen bonds?

• Amino acids can assemble into proteins.

• Chromosomes can be replicated quickly.

• A tRNA molecule can match anticodons with codons.

• A DNA molecule can be read by a ribosome to create a protein. process

Tags

NGSS.HS-LS1-1

How does the structure of DNA relate to its function?

• The single stranded structure of DNA allows for mutation to occur during replication.

• The double stranded structure of DNA allows for mutation to occur during replication.

• The single stranded structure of DNA allows for accurate replication.

• The double stranded structure of DNA allows for accurate replication.

How are amino acids linked together to form a chain?

• by hydrogen bonds

• by peptide bonds

• by nuclear bonds

• by double bonds

Which condition would be least likely to affect a protein’s function?

• change in pH

• change in temperature

• change in amino acid sequence

• change in the amount of sunlight

Why is DNA replication described as semiconservative?

• One copy is produced, containing one original strand and one new strand.

• Two copies are produced, each containing one original strand and one new strand.

• One copy is produced, containing two original strands of DNA from two different double helices.

• Two copies are produced, each containing two original strands of DNA from two different double helices.

What kind of bonds are indicated by the arrow?

• peptide bonds

• nitrogen bonds

• hydrogen bonds

• phosphate bonds

Tags

NGSS.HS-LS1-1

How are DNA molecules different from RNA molecules?

• DNA is single stranded and RNA is double stranded.

• DNA is found in the ribosomes and RNA is found the nucleus.

• DNA contains deoxyribose sugar, and RNA contains ribose sugar.

• DNA contains the nitrogen base uracil, and RNA contains the nitrogen base thymine.

What is the primary function of lipids?

• to store energy

• to fight against infections

• to carry genetic information

• to speed up chemical reactions

Which characteristic can best distinguish between two different proteins?

• the presence of nitrogen in the proteins

• the sequence of amino acids in the proteins

• the number of amino acids found in the proteins

• the location of the peptide bonds in the proteins