Match the following descriptions with the most appropriate group listed below.
a. Bacteria
b. Protista
c. Plantae
d. Fungi
e. Animalia
prokaryotic
Which event occurs during the elongation stage?
a. Peptide bonds form.
b. Free amino acids bind to the mRNA binding site.
c. Anticodons bind to complementary codons.
d. A STOP codon enters the ribosome.
e. Peptide bonds form, and anticodons bind to complementary codons.
In correct order, the three stages of translation are
a. initiation, replication, and termination.
b. elongation, peptide bond formation, and codon-anticodon pairing.
c. initiation, chain elongation, and termination.
d. termination, initiation, and replication.
e. none of these.
How did the control group differ from the experimental group in the butterfly
experiment?
a. They were different species.
b. Their native habitat area of the forest differed.
c. They tasted worse.
d. They were white-patterned.
e. They preferred different flower species.
The tailbone of humans is an example of:
a. a developing feature.
b. an accidental feature.
c. a vestigial feature.
d. an example of the great chain of being.
e. none of these.
The structure that people typically refer to as a “mushroom” is technically called the
a. basidiocarp.
b. mycelium.
c. ascocarp.
d. hyphal mass.
e. zygospore.
Bakers use alcoholic fermentation to produce ____ which causes the dough to rise.
a. alcohol
b. ATP
c. butyric acid
d. carbon dioxide
e. none of these
The following phrases refer to the eukaryotic cell cycle. Select the single BEST choice
for each phrase.
a. G2
b. mitosis
c. S
d. G1
e. cytokinesis
Period commonly followed by cytokinesis
The major function of a receptor is to
a. control the autonomic functions of the body.
b. stabilize the internal environment to achieve homeostasis.
c. produce responses to the various stimuli the body receives.
d. give organisms or cells awareness of and sensitivity to their environment.
e. do none of these.
Altruistic behavior is
a. selfish.
b. sexually directed behavior.
c. self-sacrificing behavior.
d. aggressive behavior.
e. nonreactive, such as freezing at the sign of danger.
During receptor-mediated endocytosis
a. plasma membrane receptors bind molecules to be enclosed.
b. a small pit forms beneath the receptors.
c. a pit closes back on itself.
d. a vesicle forms.
e. all of these occur.
Respond to the following statements with reference to the five plant macronutrients
listed below.
a. nitrogen
b.potassium
c.calcium
d.magnesium
e.phosphorus
This nutrient is essential to formation of chlorophyll and acts as a cofactor for many
enzymes.
In the United States, what fraction of fresh water taken from the environment is used to
irrigate agricultural fields?
a. 0.
b. 20.
c. 40.
d. 60.
e. 80.
A dangerous form of food poisoning is caused by
a. Clostridium botulinum.
b. Clostridium tetani.
c. Bacillus anthracis.
d. Heliobacter pylori.
e. Thermus aquaticus.
The following questions refer to the figure above illustrating Miller’s reaction chamber.
The area indicated by “A” in the figure represents
a. sunlight energy in the environment.
b. heat energy in the environment.
c. electrical energy in the environment.
d. ionizing radiation in the environment.
e. the explosion of the hydrogen gas to release energy for the reactions.
All of the following are domains of life except?
a. Animalia
b. Bacteria
c. Archaea
d. Eukarya
e. none of these are domains of life
Amniocentesis involves sampling
a. the fetus directly.
b. the fetal cells floating in the amniotic fluid.
c. sperm.
d. blood cells.
e. placental cells.
Use the figure above to answer the following questions. It shows the life cycle of
Chlamydomonas, a green alga.
Which stage(s) show(s) the diploid portion of the life cycle?
a. A
b. B
c. C
d. D
e. D and E
endometrium
Choose the one most appropriate answer for each.
a. acts to trigger ovulation in females
b. structures that secrete mucus and nutrients absorbable by sperm; open into the
ejaculatory duct
c. forms as an outgrowth of the yolk sac; becomes part of umbilical cord and urinary
bladder
d. a drug that causes severely deformed arms and legs in developing embryos
e. two of these connect seminiferous tubules with vasa deferentia
f. opening between uterus and vagina
g. organ that supplies the embryo/fetus with nutrients and removes wastes
h. connects epididymis with ejaculatory duct
i. hormones that stimulate uterine contractions in the female
j. cap over the head of a sperm; contains lytic enzymes to penetrate egg membranes
k. inner cell mass plus trophoblast; attaches to uterine wall
l. testosterone produced here
m. sensitive to sexual stimulation; develops from same embryonic tissues as does the
penis in males
n. the uterine lining
o. acts on gonad to help mature gametes; released from anterior lobe of pituitary
Ginkgos
Choose the most appropriate response.
a. have rhizoids, cuticle, and protected embryo sporophyte
b. one cotyledon
c. non-seed-bearing, heart-shaped gametophytes; spore-bearing leaves with sori
d. Lycopodium; cone-bearing sporophyte; free-living gametophyte
e. only one species left
f. cypress and redwood; heterosporous; mostly evergreen
g. confined to tropics or warm, temperate zones; resemble squat cone-bearing palm
trees
h. two cotyledons
i. Equisetum; homosporous; rhizomes present; aerial stems jointed; scouring rushes
j. have coevolved with pollinating vectors
Endergonic reactions
a. result in products with less energy than the reactants.
b. require a net input of energy.
c. occur in the breakdown of glucose.
d. are used by cells to provide energy for biological reactions.
e. break down large molecules into smaller molecules.
The letter “B” from above represents which of the following?
a. nucleus of the flame cell
b. small capillaries which allow water to freely diffuse into the planarian
c. sexual reproductive organ of the planarian
d. cilia which flick to draw fluid into the planarian
e. none of these
Respond to the following statements in reference to the four kinds of reception listed
below that are used by social animals.
a. tactile
b. auditory
c. visual
d. chemical
The elaborate posturing displays of male birds-of-paradise utilize this sense in the
female.
The shoot tip is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Which of the following is not potentially part of a chromosome in eukaryotes?
a. centromere.
b. histone.
c. sister chromatid.
d. nucleosome
e. all of these are part of a eukaryotic chromosome.
The following phrases refer to the eukaryotic cell cycle. Select the single BEST choice
for each phrase.
a. G2
b. mitosis
c. S
d. G1
e. cytokinesis
Period in which metaphase occurs
Which of the following is determined about DNA from X-ray diffraction data?
a. DNA is uniform in diameter.
b. DNA is long and narrow.
c. Part of the DNA molecule repeats itself often.
d. The DNA molecule is spiraled.
e. All of these are determined.
Which of the following does NOT happen when the body has excess sodium?
a. More sodium is excreted.
b. More sodium is reabsorbed.
c. Edema occurs.
d. Blood pressure rises.
e. Aldosterone secretion is inhibited.
Which of the following is the probable basis for the evolution of mitochondria and
chloroplasts?
a. Cells eat each other.
b. Light is an energy source.
c. ATP can carry energy.
d. Oxygen is a by-product of photosynthesis.
e. Energy can be transformed from one form to another.
The stages of mitosis plus interphase are listed below. Select the correct phase for each
of the following statements.
a. interphase
b. prophase
c. metaphase
d. anaphase
e. telophase
Chromosomes replicate.
Once inside the human body, HIV primarily infects
a. liver tissue.
b. kidney tissue.
c. red blood cells.
d. white blood cells.
e. all of these.
In order to survive and reproduce, a cell needs
a. an energy source.
b. raw materials.
c. a suitable environment.
d. DNA.
e. all of these.
All of the different kinds of RNA are transcribed in the
a. mitochondria.
b. cytoplasm.
c. ribosomes.
d. nucleus.
e. endoplasmic reticulum.
Competitive exclusion is the result of
a. mutualism.
b. commensalism.
c. competition.
d. predation.
e. parasitism.