Question

question 9
what is the ratio of carbon:hydrogen:oxygen in all carbohydrates?
○ 1:2:1
○ 2:1:2
○ 2:1:1
○ 1:2:2
question 10
which is the building block for proteins?
○ monosaccharide
○ amino acid
○ nucleotide
○ glycerol & fatty acid

Explanation:

Question 9

Carbohydrates have the general formula $C_n(H_2O)_n$, so the ratio of Carbon : Hydrogen : Oxygen is 1:2:1.

Proteins are polymers made by joining amino acid monomers through peptide bonds. Monosaccharides are for carbs, nucleotides for nucleic acids, and glycerol & fatty acids for lipids.

Answer:

A. 1:2:1

Question 10