Test Prep…

TEACH yourself, TEST yourself, and TALK to
yourself. Just like remembering the lyrics to your
favorite song ( read the lyrics, sing the lyrics,
and rehearse the lyrics) - the same should be
true for your class work.

Discuss your studies with others. If you can
openly talk about it with simplicity, that is a sure
way that you have it in long term memory.
1. Enzymes are classified as which
of the following biological organic
compounds?
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
D. proteins
2. Individuals who lack lactase are
unable to break down the sugar
lactose. Which term best
describes lactase?
A.
B.
C.
D.
enzyme
fatty acid
lipid
starch
A. enzymes
3. What is nondisjunction?
A. failure of genes to be passed
on to future generations
B. Failure of chromosomes to
separate properly during
meiosis
C. A duplication of genes on a
chromosome
B. Failure to separate
4. What best describes the role of
RNA molecules that form in the
nucleus?
A. RNA molecules carry the code
from DNA to the ribosomes.
B. RNA molecules determine how
an organism looks and acts.
C. RNA molecules attach to the
ribosome.
A. mRNA carries the code to
the ribosomes
5. Which is referred to as a cell’s
“powerhouse?”
A. Cytoskeleton
B. Mitochondrion
C. Flagellum
D. Lysosome
A. Mitochondrion
(Plural is mitochondria,
Singular is mitochondrion)
6. Why can a single nitrogen base
deletion in DNA be harmful to an
organism?
A. Deletion causes chromosomes to
join backwards or join the wrong
chromosomes.
B. Deletion causes nearly every
amino acid in the protein to
change.
C. Deletion causes a gamete to have
an extra chromosome.
B. Deletion causes nearly every
amino acid in the protein to
change.
7. What is an change of allelic
frequencies by chance events that
greatly affects small populations?
A. Genetic drift
B. Allelic frequency
C. Genetic equilibrium
D. Gene pool
A. Genetic drift
8. Dolphins and fish are unrelated
vertebrates with similar body shapes
that are adapted for moving efficiently
through water. What evolutionary
process is shown by this example?
A. Convergent evolution
B. Divergent evolution
C. Reproductive isolation
A. Convergent evolution
9. What distinguishes a theory from a
hypothesis?
A. A theory is a scientific
explanation.
B. A theory is testable.
C. A theory is the observation of a
natural phenomenon.
D. They are the same thing.
A. A theory is a scientific explanation.
A theory is testable? No - (A hypothesis is
testable.)
A theory is the observation of a natural
phenomenon.?No - (A scientific law is an
observation.)
10. A plant or animal that contains
functional recombinant DNA from an
organism of a different genus are
known as a ______ organism.
A. Recombinant
B. Heterozygous
C. Hybrid
D. Transgenic
D. Transgenic
12. Which process results in an
RNA copy of a DNA strand?
Translation
B. Transcription
C. Replication
D. Mitosis
A.
B. Transcription
13. How does camouflage aid in the
evolutionary process?
A. Camouflage enables an organism to
copy the appearance of another
species.
B. Organisms that are well camouflaged
are more likely to escape predators and
survive to reproduce.
C. This adaptation helps an organism
mutate.
B. Organisms that are well
camouflaged are more likely
to escape predators and
survive to reproduce.
14. What is a mutation in which a
single base is added to or deleted
from DNA?
A. Chromosomal mutation
B. Frameshift mutation
C. Point mutation
B. frameshift

15. What is cellular respiration?
A process that uses oxygen to
break down glucose and release
energy.
B. A process that rids the body of
nitrogen gases.
C. A process in which the muscles of
the chest cavity contract and relax.
A.
A. A process that uses oxygen to break
down glucose and release energy.

16. How does penicillin affect a
bacterial cell?
It interferes with the construction
and repair of a bacterial cell wall.
B. It interferes with protein synthesis.
C. It interferes with DNA replication.
D. It interferes with transcription.
A.
A. It interferes with the
construction and repair of a
bacterial cell wall.
 17. A karyotype
of a human female
shows that she has only one sex
chromosome. Which genotype
would represent her genetic
condition?
A. XO
B. XXX
C. XY
D. XYY
A. XO
18. Enzymes are classified as
which of the following biological
organic compounds?
A. carbohydrates
B. lipids
C. proteins
D. nucleic acids
C. proteins
19. What are two methods of nitrogen
fixation?
bacteria and lightning
B. decomposition and excretion
C. Respiration and transpiration
D. Condensation and evaporation
A.
A. bacteria and lightning
(Primarily bacteria,
small amount fixed by
lightning)
20. Which of the following is a biotic
factor?
Air
B. Soil
C. Water
D. Tree
A.
D. Tree
21. What is the main function of the
projections that cover the HIV?
They help the virus move and
grow.
B. They aid in respiration.
C. They help the virus invade its
host.
A.
C. They help the virus invade its host.
22. In genetics research, what is the
purpose of a test cross?
A. to determine the phenotypes of a
parent
B. to determine the genotypes of a
parent
C. to determine whether or not two
parents could produce viable
offspring
B. to determine the
genotypes of a parent
23. Sexual reproduction provides for
what to occur?
A.
B.
C.
D.
cloning
budding
genetic stability
genetic variation
D. genetic variation
24. A plant is placed near a window,
and after a few weeks, you notice
that the stem begins to bend toward
the window. This tropic response is:
A. Phototropism
B. Gravitropism
C. Thigmotropism
D. D. none of the above
A. Phototropism
25. What cells are responsible for opening
and closing stomata?
A. Meristem cells
B. Guard cells
C. Cellulose cells
D. Trichomes
B. Guard cells
26. Amoebas form extensions of their
plasma membranes to move and
feed. These extensions are called:
A. Vacuoles
B. Flagella
C. Pseudopodia
D. Cilia
27. Sometimes viral DNA
incorporates itself into the host’s
genetic material. What is the
viral DNA called after this occurs?
A.Bacteriophage
B.Provirus
C.Adenovirus
D.Retrovirus