Question

part 7 - labeling molecules - use the words in the word bank to label the molecules below.
word bank
amino acid
phospholipid
triglyceride
disaccharide
polysaccharide
monosaccharide
protein
nucleic acid
part 8 - labeling a nucleotide - label the parts of the molecule below using the word bank.
word bank
phosphate group
nitrogenous base
nucleotide
5 - carbon sugar

Explanation:

• Part 7:
• The first molecule has the general structure of an amino acid (central carbon with amino group, carboxyl group, hydrogen, and side chain).
• The double - helix structure is characteristic of nucleic acid (like DNA).
• The simple sugar structure is a monosaccharide.
• The structure with a phosphate head and fatty acid tails is a phospholipid.
• The two - sugar linked structure is a disaccharide.
• The structure with glycerol and fatty acids (though simplified) is a triglyceride.
• The complex sugar chain (multiple hexagons) is a polysaccharide.
• The protein structure (though simplified as a chain) is a protein.
• Part 8:
• Based on the structure of a nucleotide (phosphate group, 5 - carbon sugar, nitrogenous base), and the labels in the word bank:
• A is the phosphate group (has phosphate atoms).
• B is the 5 - carbon sugar (as per the structure and the word bank hint).
• C is the nitrogenous base (the ring - like structure with nitrogen).
• D is the nucleotide (the whole unit composed of phosphate, sugar, and base).

Answer:

• Part 7:
• First molecule: Amino Acid
• Double - helix: Nucleic Acid
• Simple sugar: Monosaccharide
• Phospholipid - like structure: Phospholipid
• Two - sugar linked: Disaccharide
• Triglyceride - like: Triglyceride
• Complex sugar chain: Polysaccharide
• Protein - like: Protein
• Part 8:
• A: Phosphate Group
• B: 5 - Carbon Sugar
• C: Nitrogenous Base
• D: Nucleotide