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Chapter 1-3 Review



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

Nonliving entities would NOT possess
a.
energetic interactions.
b.
DNA.
c.
atoms.
d.
elements.
e.
any of these
 

2. 

Energy transfers take place at what organizational level?
a.
molecule
b.
organelle
c.
cell
d.
organ
e.
organism
 

3. 

Homeostasis provides what kind of environment?
a.
positive
b.
constant
c.
limiting
d.
changing
e.
chemical and physical
 

4. 

The conversion of solar energy to chemical energy is known as
a.
metabolism.
b.
photosynthesis.
c.
chemosynthesis.
d.
catabolism.
e.
anabolism.
 

5. 

A new life cycle begins with
a.
death.
b.
pupation.
c.
formation of a larva.
d.
fertilization of an egg.
e.
hatching of an egg.
 

6. 

The least inclusive of the taxonomic categories listed here is
a.
family.
b.
phylum.
c.
class.
d.
order.
e.
genus.
 

7. 

Which of the following is NOT a eukaryote?
a.
fungi
b.
bacteria
c.
plants
d.
animals
e.
protistans
 

8. 

An adaptive trait is a trait that has
a.
mutated.
b.
survival value.
c.
decreased in frequency in a population.
d.
deleterious biological effects.
e.
the potential to produce variation.
 

9. 

Which of the following statements is NOT true?
a.
Natural selection is based upon differential reproduction and survival.
b.
For evolution to occur in a population, there must be some variation.
c.
All variations found in a population are heritable.
d.
A population undergoes evolution when the frequency of its genes change.
e.
Over time, some genetic traits are more adaptive than others.
 

10. 

Which represents the highest degree of certainty?
a.
hypothesis
b.
fact
c.
principle
d.
law
e.
theory
 

11. 

Which is NOT an element?
a.
water
b.
oxygen
c.
carbon
d.
chlorine
e.
hydrogen
 

12. 

The negative subatomic particle is the
a.
neutron.
b.
proton.
c.
electron.
d.
both the neutron and proton.
e.
both the proton and electron.
 

13. 

The atomic weight (or mass) of an atom is determined by the weight of
a.
neutrons and protons.
b.
neutrons and electrons.
c.
protons and electrons.
d.
protons only.
e.
neutrons only.
 

14. 

In the chemical shorthand 14C, the fourteen represents the number of
a.
excess neutrons.
b.
protons plus neutrons.
c.
electrons.
d.
protons plus electrons.
e.
radioactive particles.
 

15. 

Electrons are shared in bonds called
a.
covalent.
b.
polar.
c.
nonpolar.
d.
all of these
 

16. 

Glucose dissolves in water because it
a.
ionizes.
b.
is a polysaccharide.
c.
is polar and forms many hydrogen bonds with the water molecules.
d.
has a very reactive primary structure.
e.
none of these
 

17. 

Which of the following is a naked proton?
a.
hydrogen ion
b.
acid
c.
base
d.
hydroxyl ion
e.
acceptor
 

18. 

Carbon usually forms how many bonds with other atoms?
a.
2
b.
3
c.
4
d.
5
e.
6
 

19. 

An -OH group is a(n) __________ group.
a.
carboxyl
b.
hydroxyl
c.
amino
d.
methyl
e.
ketone
 

20. 

A -COOH group is a(n) __________ group.
a.
carboxyl
b.
hydroxyl
c.
amino
d.
methyl
e.
ketone
 

21. 

Which of the following demonstrates a condensation reaction?
a.
photosynthesis
b.
digestion
c.
lipid synthesis
d.
photosynthesis and lipid synthesis
e.
photosynthesis, digestion, and lipid synthesis
 

22. 

Which are NOT macromolecules?
a.
proteins
b.
polysaccharides
c.
nucleotides
d.
lipids
e.
nucleic acids
 

23. 

Which is a monomer of carbohydrates?
a.
glycogen
b.
nucleotide
c.
simple sugar
d.
monosaccharide
e.
both simple sugar and monosaccharide
 

24. 

Which of the following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?
a.
carbohydrate
b.
protein
c.
lipid
d.
nucleic acid
e.
steroid
 

25. 

Glucose and fructose are different
a.
in the number of carbons they possess.
b.
in their relationship to the sucrose molecules.
c.
in the way that their atoms are arranged.
d.
in the number of double bonds they possess.
e.
both in the way that their atoms are arranged and in the number of double bonds they possess.
 

26. 

Oils are
a.
liquid at room temperatures.
b.
unsaturated fats.
c.
found only in animals.
d.
complex carbohydrates.
e.
both liquid at room temperature and unsaturated fats.
 

27. 

Cholesterol
a.
is synthesized in the large intestine.
b.
floats free in the bloodstream.
c.
is used in the construction of biomembranes.
d.
levels in the bloodstream can be increased by eating plant fats.
e.
is much greater in the bloodstream of rats than humans.
 

28. 

The sequence of amino acids is the __________ structure of proteins.
a.
primary
b.
secondary
c.
tertiary
d.
quaternary
e.
stereo
 

29. 

Denaturation of proteins may result in all but one of the following. Which one is it?
a.
breakage of hydrogen bonds
b.
loss of three-dimensional structure
c.
removal of R groups from amino acids
d.
alteration of enzyme activity
e.
endangerment of cell's life
 

30. 

Which of the following is NOT found in every nucleic acid?
a.
ribose
b.
phosphate group
c.
single-ring base
d.
double-ring base
e.
All of these are characteristic of every nucleotide.
 



 
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