Mader's Understanding Human Anatomy & Physiology (Longenbaker), 8th Edition

Chapter 2: Chemistry of Life

True or False Quiz

1
Matter is anything that takes up space and has color.
A)True
B)False
2
In a neutral atom, the number of electrons must equal the number of neutrons.
A)True
B)False
3
The number of electrons in the outer shell of an atom determines the chemical and physical properties of the atom.
A)True
B)False
4
Two atoms that share three electrons form a triple covalent bond.
A)True
B)False
5
Hydrophilic molecules love water.
A)True
B)False
6
Acids are molecules that release hydrogen ions in water.
A)True
B)False
7
Basic solutions have pH values above 7.
A)True
B)False
8
A person with a blood pH below 7.35 is in a state of alkalosis.
A)True
B)False
9
A basic solution has a greater concentration of hydrogen ions compared to hydroxide ions.
A)True
B)False
10
A base is a chemical that can function to maintain a constant pH in a solution.
A)True
B)False
11
A solution with a pH of 6.0 is more acidic than a solution with a pH of 4.0.
A)True
B)False
12
Hydrolysis reactions combine monomers to form a macromolecule and water.
A)True
B)False
13
All lipids are insoluble in water.
A)True
B)False
14
An emulsifier can allow hydrophobic fats to dissolve in water.
A)True
B)False
15
Bile is an important emulsifier in the body.
A)True
B)False
16
Cholesterol and testosterone are types of phospholipids.
A)True
B)False
17
The bond between two amino acids is a hydrogen bond.
A)True
B)False
18
Coils or folds of a polypeptide chain creates the secondary structure that is held by hydrogen bonds between side groups.
A)True
B)False
19
The most important thing that determines a protein's function is the shape of that protein.
A)True
B)False
20
A parasite called a prion causes "mad-cow" disease.
A)True
B)False
21
Most cellular reactions need enzymes so that the reaction can occur at the body's normal temperature.
A)True
B)False
22
A catalyst is the sum of all the chemical reactions that occur in the body and its cells.
A)True
B)False
23
An enzyme can work as a catalyst as long as its shape matches the shape of its substrate.
A)True
B)False
24
RNA is the hereditary molecule.
A)True
B)False
25
In RNA, uracil replaces thymine.
A)True
B)False
26
The sequence of bases in DNA is the genetic code.
A)True
B)False
27
ATP is created from the enzymatic breakdown of proteins in cells.
A)True
B)False
Maders Understanding Human Anatomy & Physiology
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