Question

question 1

the monomer of carbohydrates is ______.

• amino acids
• monosaccharides (simple sugars)
• nucleotides
• fatty acids

question 2

which of the following macromolecules are a prominent part of animal tissues that function in insulation, helping animals conserve heat?

• carbohydrates
• proteins
• lipids
• nucleic acids

Explanation:

Analyze Question 1

The question asks for the monomer of carbohydrates. Carbohydrates are macromolecules composed of simple sugar units. The monomeric building blocks of carbohydrates are monosaccharides (such as glucose, fructose, and galactose).

• Amino acids are the monomers of proteins.
• Nucleotides are the monomers of nucleic acids.
• Fatty acids (along with glycerol) are components of lipids.

Therefore, the correct option is "monosaccharides (simple sugars)".

Analyze Question 2

The question asks which macromolecule is a prominent part of animal tissues functioning in insulation and helping animals conserve heat.

• Lipids (specifically fats/triacylglycerols in adipose tissue) serve as long-term energy storage and provide thermal insulation to help animals conserve body heat.
• Carbohydrates primarily serve as short-term energy sources and structural components.
• Proteins have diverse structural and functional roles but are not the primary macromolecule specialized for thermal insulation.
• Nucleic acids store and transmit genetic information.

Therefore, the correct option is "lipids".

Answer:

Question 1

• amino acids
• monosaccharides (simple sugars) (Correct answer)
• nucleotides
• fatty acids

Question 2

• carbohydrates
• proteins
• lipids (Correct answer)
• nucleic acids