Biology Chapter 5: Question Preview (ID: 3130)


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An organic molecule is based on ____, while hydrocarbons are organisms that must also have _____
a) hydrogen, carbon
b) oxygen, nitrogen
c) carbon, hydrogen
d) nitrogen, oxygen

Which of the 4 main functional groups below is used for electron bonding?
a) hydroxyl group
b) carbonyl group
c) carboxyl group
d) amino group

A carbohydrate is not --
a) inorganic
b) have a base of CH2O
c) ring-shaped
d) hydrophilic

Which of the below is not a polysaccharide?
a) starch
b) glucose
c) glycogen
d) cellulose

A fat molecule is made of ___ and 3 ___ acids
a) glycogen, citric
b) glycogen, fatty
c) glycerol, citric
d) glycerol, fatty

A steroid molecule functions --
a) as chemical messengers
b) to cushion
c) to insulate
d) to store energy

Proteins are made of _____, which are made of ______
a) amino acids, polypeptides
b) denaturation, polypeptides
c) polypeptides, amino acids
d) denaturation, amino acids

Amino acids are not made of --
a) an amino group
b) polypeptides
c) a carboxyl group
d) a side group with unique chemical properties

_____ speed up chemical reactions by lowering activation energy, like their biological counterparts, _______
a) proteins, steroids
b) catalysts, enzymes
c) enzymes, catalysts
d) substrates, amino acids

Which helps build polymer chains?
a) Hydrolysis reaction
b) Condensation reaction
c) Dehydration reaction
d) Denaturation

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