AP Bio - How Macromolecules Are Joined and Broken

Which of the following is common feature of the illustrated reactions showing the linking of monomers to form macromolecules?

• Two identical monomers are joined by a covalent bond

• Two different monomers are joined a by a covalent bond

• Monomers are joined by covalent bond, and a water molecule is produced

• Monomers are joined by ionic bonds, and a water molecule is produced

Tags

NGSS.HS-LS1-6

Which of the following best describes the formation of the bond shown in Figure 1?

• A covalent bond is formed between a carbon atom and a nitrogen atom along with the formation of H20

• An ionic bond is formed between a carbon atom of one amino acid and the nitrogen atom of the other amino acid

• An ionic bond is formed when the negative charge of an OH

  OH group is balanced by the positive charge of a hydrogen ion

• A covalent bond is formed that replaces the hydrogen bond between the OH group and the H atom

Tags

NGSS.HS-LS1-6

NGSS.HS-PS1-2

Which of the following is a correct monomer/polymer pairing?

• Monosaccharide/polypeptide

• Amino acid/polypeptide

• Amino acid/polysaccharide

• Glycerol/triglyceride

Figure 1 represents a common process that occurs in organisms. Which of the following is an accurate description of the process shown in Figure 1?

• The linking of amino acids with an ionic bond as an initial step in the protein synthesis process

• The formation of a more complex carbohydrate with the covalent bonding of two simple sugars

• The hydrolysis of amino acids with the breaking of covalent bonds with the release of water

• The formation of a covalent peptide bond in a dehydration synthesis reaction

Does dehydration synthesis or hydrolysis break polymers into monomers?

• Dehydration synthesis

• Hydrolysis

Which macromolecule does not have a polymer?

• Lipid

• Protein

• Carbohydrate

• Nucleic acid

What type of bond are phosphodiester, ester, glycosidic, and peptide bonds?

• Ionic

• Hydrogen

• Covalent

• Metallic

Tags

NGSS.HS-PS1-2

Explain polymers and monomers (and their connection).

What is considered the monomer of proteins?

• Dipeptide

• Amino acid

• Polypeptide

• Monosaccharides

Tags

NGSS.HS-LS1-6

Which of these images shows the formation of nucleotides into a nucleotide chain?

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