AP Bio molecules Quiz/Unit 3

Organic Compounds...

• Can be synthesized only in a laboratory

• are synthesized only by animal cells

• always contain carbon

• always contain nitrogen

• always contain oxygen

Tags

NGSS.HS-LS1-6

You now know that the old cliche "oil and water don't mix" is true, why?

• water is hydrophobic

• oil is an organic compound and water is not.

• Oil is hydrophilic

• Water exhibits polarity and oil does not.

• Oil exhibits polarity and water does not.

A hydroxyl group is

• also called a carbonxyl group.

• basic

• characteristics of alcohols.

• characteristics of proteins.

• hydrophobic.

Which of the following contains a carboxyl and an amino group?

• vinegar

• fats

• ATP

• amino acids

• sugars

Tags

NGSS.HS-LS1-6

Which of the following statements about the monomers and polymers found in living organisms is false?

• DNA is built from just four kinds of monomers.

• Cells typically make all of their macromolecules from a set of 40-50 common monomers and a few other ingredients that are rare.

• Monomers are joined together by the process of hydrolysis.

• The monomers used to make polymers are essentially universal.

• Monomers sever as building blockers for polymers.

Which list below consists of only polymers?

• Proteins, lipids, nucleic acids, polysaccharides

• Sugars, amino acids, nucleic acids, lipids

• polysaccharides, lipids, animo acids, nucleic acids

• protein, lipids, nucleic acids, amino acids

• proteins, lipids, nucleotides, sugars

Many names for sugars end in the suffix

• -ase.

• -acid.

• -ing.

• -ose.

• -hyde.

A disaccharide forms when

• two starches join by hydrolysis

• two starches join by dehydration synthesis

• a starch and a monosaccharide join by dehydration synethesis

• two monosaccharides join by dehydration synthesis

• two monosaccharides join by hydrolosis

Cellulose differs from starch in that

• cellulose is highly branched, whereas starch is unbranched.

• glycogen is formed by plants and cellulose by animals.

• starch is made of glucose monomers, whereas cellulose is made of fructose monomers.

• most animals cannot break down cellulose, whereas starch is easily digested.

• The monomers of cellulose are held together by covalent bonds, whereas the monomers of starch are held together by hydrogen bonds.

The storage form of carbohydrates is ________ in animals and ________ in plants.

• glycogen . . . starch

• cellulose . . . glycogen

• glycogen . . . cellulose

• starch . . . glycogen

• chitin . . . glycogen