Biochemistry Test Review

Based on the chemical bonds present in this molecule, we would classify it as a(n)

• protein

• simple sugar

• complex carbohydrate

• Lipid

Will and Juan decided to make a snack after school: peanut butter and jelly sandwiches and a glass of cold milk. They assembled the following ingredients:

-whole wheat bread

-peanut butter

-grape jelly

-whole milk

Which food likely has the FEWEST calories (less energy) per gram of serving and why?

• peanut butter because it contains plant-based fats

• grape jelly because it is mostly simple sugars

• whole wheat bread because it contains a combination of complex carbohydrates, simple sugars, and plant-based, unsaturated fats

• whole milk because most of the animal fat remains

Biomolecules are essential to all living things. Which of the following biomolecules are composed of the elements C, H, O, and N

• lipid
• carbohydrate
• protein
• nucleic acid

Tags

NGSS.HS-LS1-1

Monomers, like the one in the picture, are found in:

• lipids
• proteins
• carbohydrates
• nucleic acids

If a scientist turns a polymer into monomers in the laboratory, would the resulting material be larger or smaller than the starting reactants?

• larger
• smaller
• not enough information to answer
• stays the same

What is the function of the macromolecule in the picture?

• homeostasis

• quick energy

• heredity

• long term energy and insulation

Lipid is to insulation as carbohydrate is to __________________

• insulation

• quick energy

• heredity

• enzymes

Alli is having a problem with her hair and nails becoming fragile and breaking easily. She went to the store to buy vitamins to help her, but is unsure of what type of supplement she needs. Which macromolecule should Alli look for on the vitamin labels?

• carbohydrate 
• nucleic acid
• lipid
• protein

A polysaccharide is a polymer of which of the following biomolecules?

• carbohydrate
• lipid
• protein
• nucleic acid

The basic building blocks (monomers) of proteins are:

• nucleotides
• monosaccharides
• triglycerides
• amino acids