Download Quiz 7 - Cuero ISD

Biology Quiz #7
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. The primary function of the endosperm in a seed is
a. protection.
b. to attract pollen.
c. to produce plant growth hormones.
d. water storage.
e. food storage.
2. Carbohydrates are stored in plants in the form of
a. cellulose.
b. sucrose.
c. starch.
d. fats.
e. glucose.
3. The fovea of the human eye is
a. mostly rods.
b. the part of the retina that produces the sharpest image.
c. in the sclera.
d. in the lense.
e. the part of the retina that has no receptor cells.
4. Transport processes, such as diffusion and active transport, occur across which membranes?
a. plasma membranes
b. chloroplast membranes
c. mitochondrial membranes
d. endoplasmic reticulum membranes
e. all of the above
5. When a muscle cell needs energy to perform its work of contraction, what happens to ATP?
a. ATP produces more ATP.
b. ATP enters a metabolic pathway.
c. ATP is hydrolyzed.
d. ATP is phosphorylated.
e. ATP catalyzes the reaction.
6. If there are 12 chromosomes in an animal cell during the Gap 1 stage of the cell cycle, then the diploid
chromosome number for this organism is ___.
a. 3
b. 6
c. 12
d. 24
e. 48
7. In the matrix of a mitochondrion, oxygen combines with ___ to form __.
a. electrons; water
b. hydrogen ions; water
c. electrons and hydrogen ions; water
d. carbon; carbon dioxide
e. electrons and hydrogen ions; carbon dioxide
8. Which of the following is not directly involved in translation?
a. ribosomes.
b. tRNA
c. amino acids
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9.
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d. DNA
e. mRNA
Which protozoan group contains only parasitic forms?
a. sporozoans
b. sarcodines
c. pyrrophyta
d. cellular slime molds
e. zooflagellates
Sexual reproduction in the fungal life cycle includes which of the following sequences:
a. a haploid zygote that divides by meiosis to form haploid spores.
b. a diploid zygote that divides by meiosis to form haploid spores that produce haploid
mycelia through mitosis.
c. haploid gametes that divide by meiosis and produce a diploid zygote that grows by mitosis
to produce diploid mycelia
d. free-swimming gametes fuse to form a diploid zygote that grow by mitosis
e. diploid spores divide by meiosis to form haploid gametes that join to form mycelia
Cnidarians are hunters that wait for prey to pass by and then they ___.
a. run over and grab them.
b. suck them into their gastrovascular cavity with collar cells.
c. shoot them with nematocysts.
d. trap them within their shells.
e. bite and kill them.
If a beaver eats the bark all the way around a tree trunk (a process called "girdling"), why does the tree
eventually die?
a. because it is more susceptible to insect and fungal diseases.
b. because the phloem is damaged and the transport of sugars is interrupted.
c. because cells of the lateral meristem can no longer divide
d. because the supply of water and minerals to the leaves is no longer possible
e. because the tree cannot continue to photosynthesize
A plant, by opening and closing its stomata must achieve a balance between ___.
a. oxygen loss and water uptake.
b. carbon dioxide loss and sugar uptake
c. water loss and carbon dioxide uptake
d. sugar loss and oxygen uptake
e. carbon dioxide uptake and oxygen loss
If you were operating a tree nursery and wanted to keep your trees dormant until the customers could get
them planted, which of the following hormones or types of hormones might you spray on the trees?
a. auxin
b. gibberellin
c. cytokinin
d. abscisic acid
e. ethylene
Athletes such as long distance runners like to train at high altitudes because the low oxygen levels there
stimulate the
a. body to increase the absorbing area of the lungs.
b. bone marrow to produce more erythrocytes
c. muscles to contract aerobically
d. muscles to contract more strongly
e. capillaries to diffuse oxygen more readily
Biology Quiz #6
Answer Section
MULTIPLE CHOICE
1.
2.
3.
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5.
6.
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8.
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11.
12.
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15.
B
A
B
B
E
D
E
D
B
B
D
D
B
B
C