BIO 1201 GREGG EXAM 2 2026 MOLECULAR
BIOLOGY DRILL PACK ANSWER SHEET
◉ if ice sank what would happen.
Answer: all bodies of water would eventually freeze solid, making
life impossible on Earth
◉ water's high specific heat.
Answer: Hydrogen Bonding
◉ Heat absorbed.
Answer: hydrogen bonds break
◉ Heat released.
Answer: hydrogen bonds form
◉ Polarity allows water molecules to form ________ _____ with each
other..
Answer: hydrogen bonds
◉ Surface tension (of water).
,Answer: A measure of how difficult it is to stretch or break the
surface of a liquid
◉ specific heat.
Answer: The amount of energy required to raise the temperature of
1 gram of a substance by 1 degree celcius
◉ The pH of a solution is defined as.
Answer: -log[H+]
◉ Acids.
Answer: Proton donors - produce H+ ions in water
◉ Bases.
Answer: proton acceptors (take up H+ from solution)
◉ In any aqueous solution @25C the product of H+ and OH-
concentrations is constant @.
Answer: 10^-14
◉ [H+][OH-]=.
Answer: 10^-14
, ◉ Buffers.
Answer: Allow biological fluids to maintain relatively constant
despite additions of acids and bases
◉ hydroxyl group (-OH).
Answer: Polar due to electronegative oxygen. Forms hydrogen bonds
with water.
Compound name: Alcohol
◉ Carbonyl group (C=O).
Answer: Polar. Sugars with ketone groups called ketones (w/in C
skeleton) aldehyde called Al doses (end of C skeleton)
◉ Carboxyl group (-COOH).
Answer: Polar. acts as an acid (can donate H+) because the covalent
bond between oxygen and hydrogen is so polar. Compound Name:
Carboxylic acid, or organic acid
◉ Amino group (-NH2).
Answer: Polar. acts as a base; can pick up an H+ from the
surrounding solution (water, in living organisms). Compound name:
amine
BIOLOGY DRILL PACK ANSWER SHEET
◉ if ice sank what would happen.
Answer: all bodies of water would eventually freeze solid, making
life impossible on Earth
◉ water's high specific heat.
Answer: Hydrogen Bonding
◉ Heat absorbed.
Answer: hydrogen bonds break
◉ Heat released.
Answer: hydrogen bonds form
◉ Polarity allows water molecules to form ________ _____ with each
other..
Answer: hydrogen bonds
◉ Surface tension (of water).
,Answer: A measure of how difficult it is to stretch or break the
surface of a liquid
◉ specific heat.
Answer: The amount of energy required to raise the temperature of
1 gram of a substance by 1 degree celcius
◉ The pH of a solution is defined as.
Answer: -log[H+]
◉ Acids.
Answer: Proton donors - produce H+ ions in water
◉ Bases.
Answer: proton acceptors (take up H+ from solution)
◉ In any aqueous solution @25C the product of H+ and OH-
concentrations is constant @.
Answer: 10^-14
◉ [H+][OH-]=.
Answer: 10^-14
, ◉ Buffers.
Answer: Allow biological fluids to maintain relatively constant
despite additions of acids and bases
◉ hydroxyl group (-OH).
Answer: Polar due to electronegative oxygen. Forms hydrogen bonds
with water.
Compound name: Alcohol
◉ Carbonyl group (C=O).
Answer: Polar. Sugars with ketone groups called ketones (w/in C
skeleton) aldehyde called Al doses (end of C skeleton)
◉ Carboxyl group (-COOH).
Answer: Polar. acts as an acid (can donate H+) because the covalent
bond between oxygen and hydrogen is so polar. Compound Name:
Carboxylic acid, or organic acid
◉ Amino group (-NH2).
Answer: Polar. acts as a base; can pick up an H+ from the
surrounding solution (water, in living organisms). Compound name:
amine
