AP Biology

What does insoluble fiber refer to?

• cellulose

• polypeptides

• starch

• chitin

C₆H₁₂O₆ is

• carb

• monosaccharide

• carb and lipid

• carb and monosaccharide only

Lactose is made up of glucose and galactose. How do you classify lactose

• polysaccharide

• hexose

• disaccharide

• monosaccharide

Which of the following are polysaccharides?

• glycogen

• cellulose

• chitin

• lactose

What is cellulose?

• a storage polysaccharide for energy in plants

• it can be digested by the human gut

• it is composed of enantiomers of glucose

• a major structural component of plant cell walls

Which is true for the lipids

• they are insoluble in water

• they are made from glycerol, fatty acids, and phosphate

• they contain less energy than proteins and carbs

• they contain nitrogen

The bonding of 2 amino acid molecules to form a larger molecule requires....

• the addition of a water molecule

• the addition of a nitrogen atom

• the release of a water molecule

• the release of CO₂

How many diff kinds of polypeptides, each composed of 10 amino acids could be made using the 20 common amino acids?

• 10²⁰

• 200

• 20¹⁰

• 20

Which functional groups are in all amino acids

• carboxyl and amino

• keto and amino

• hydroxyl and carboxyl

• sulfhydryl and phophate

Which chemical reaction makes polymers from monomers?

• hydrolysis

• dehydration reactions

• ionic bonding of monomers

• disulfide bridges between monomers