Question

proteins are folded at four levels: primary, secondary, tertiary, and quaternary. structure and function are intricately linked; any changes in shape caused by changes to temperature, ph, or chemical reactions may lead to protein denaturation and a loss of function.
nucleic acids are molecules made up of repeating units of nucleotides that direct cellular activities such as cell division and protein synthesis. each nucleotide is made up of a pentose sugar, a nitrogenous base, and a phosphate group. there are two types of nucleic acids: dna and rna.
multiple choice

1. an example of a monosaccharide is

a. fructose
b. glucose
c. galactose
d. all of the above

1. cellulose and starch are examples of

a. monosaccharides
b. disaccharides
c. lipids
d. polysaccharides

Explanation:

Monosaccharides are simple sugars; fructose, glucose, and galactose are all monosaccharides. Cellulose and starch are complex carbohydrates composed of multiple sugar units, classified as polysaccharides.

Answer:

1. d. all of the above
2. d. polysaccharides