BIOLOGY MULTIPLE CHOICE TEST WITH ANSWER
Below are few of my collections of Biology Multiple Choice Questions with answer related to respiratory system, circulatory system and Mendelian inheritance.
1. What important activity takes place in the
lungs?
a.
Food is digested.
b.
Liquid waste is filtered from the blood.
c. Oxygen is exchanged for carbon dioxide.
d.
The trachea is exchanged for the larynx.
2. What is the purpose of the little hairs
inside the nose?
a.
To fight disease.
b.
They serve no purpose.
c. To keep dust out of the lungs.
d.
To tickle the nose and cause sneezes.
3. From what source do cells get their food?
a.
Blood c. Oxygen
b.
Other cells d. carbon dioxide
4. Why is oxygen important to blood and to the
cells?
a.
Oxygen helps the blood to clot.
b.
Oxygen brings food to the cells.
c.
Oxygen is necessary for cell growth and energy.
d.
Oxygen is not important -- carbon
dioxide is the most
important substance to the body.
important substance to the body.
5. Why does blood turn dark red as it circulates
through the body?
a.
It starts to clot.
b.
It gets old and dirty flowing through the body.
c. The oxygen in it is replaced with carbon
dioxide.
d.
The farther blood is from the heart, the more dark red
it is.
6. When blood flows into the right atrium from
the body, it contains
a. little
oxygen and a lot of carbon dioxide.
b. a lot of oxygen and little carbon dioxide.
c. a lot of both oxygen and carbon
dioxide.
d. little of either oxygen or carbon
dioxide.
7. Air moves out of the lungs when the pressure inside
the lungs is
a. less than the pressure in the atmosphere.
b. greater than the pressure in the atmosphere.
c. equal to the pressure in the atmosphere.
d. greater than the intra-alveolar pressure.
a. less than the pressure in the atmosphere.
b. greater than the pressure in the atmosphere.
c. equal to the pressure in the atmosphere.
d. greater than the intra-alveolar pressure.
8. Which is the correct sequence of blood
vessels from the heart through the body and back to the heart?
a. Veins venules capillaries arterioles arteries
b. Arterioles arteries capillaries veins venules
c. Arteries arterioles veins venules capillaries
d. Arteries arterioles
capillaries venules veins
9. When we breathe
in, we inhale many gases present in the air, including oxygen.
What do you
think happens to the gases that are not needed by the body?
a.
These
gases will be absorbed in the lungs.
b.
These
gases will not be recognized by the body.
c.
These
gases will be given off together with the carbon dioxide.
d.
These gases will
still pass from the lungs into the blood, and circulate throughout the body.
a.
The atria contract then the
ventricles contract, giving two pumps.
b.
The two sides of the heart beat
independently, controlled by two separate mechanisms.
c.
The two sides of the heart pump blood that never mixes.
d.
There is a "back up"
mechanism in the heart in case of heart attack that gives one a "second
chance" - that is the double pump available to everyone.
11. Anemia is a disorder that results from an
insufficient number of red blood cells or from the diminished ability of the
red blood cells to carry oxygen to the tissues of the body. What component of
red blood cells is diminished if a person is suffering from anemia?
a. chlorophyll c.
cytoplasm
b. hemoglobin d.
gamma globulin
12. Which of the following is a respiratory disorder that
results in permanent damage to the alveoli?
a. SARS c. common cold
b. Emphysema d. influenza
13. During
pulmonary circulation, blood leaves the
a. right atrium and goes directly to the lungs.
b. right ventricle and moves to the lungs.
c.
left ventricle and moves to the lungs.
d. right ventricle and goes directly to the aorta.
14. The role of
valves in the veins is to
a. Keep
the blood from flowing backward when the veins are squeezed by the skeletal
muscles
b. Push the
blood upward toward the heart
c. Slow blood
flow in the veins so that the blood can move more slowly in the capillaries
d. Block the
flow of blood to the heart until it has time to contract again
15. What happens to cause air to be exhaled from
the lungs?
a. The rib muscles contract and move
outward.
b. The chest cavity expands and grows
larger.
c.
The diaphragm relaxes and moves upward.
d. The lungs
contract and then expand.
16. . Mendel's unit factors in pairs are most accurately
known to be __________.
a.
two maternal chromatids
b.
two alleles on nonhomologous
chromosomes
c.
two alleles on a paternal and a maternal homologue
d.
identical alleles on homologous
chromosomes
17. The term phenotype refers to the
__________ of an individual.
a.
breeding pattern
b.
number of chromosomes
c.
genetic constitution
d.
appearance of a characteristic or trait
18. Organisms that have two
identical alleles for a particular trait are said to be
a.
hybrid. c. heterozygous
b. homozygous d. domina
19. Yellow seed color (Y) is dominant to green (y) and round seed shape (R )
is dominant to wrinkled (r ). What genotypes produce yellow, wrinkled seeds?
a. YYRr and YyRr c.
YYRR and Yyrr
b)
YyRR and yyrr d . Yyrr
and YYrr
20. After
crossing two strains of cabbage plant, one green and one yellow, you find the
first generation offspring are all green. In the F2, you find 87 green plants
and 28 yellow plants. What mode of inheritance best explains your results?
a)
non-mendelian inheritance c. complete dominance
b)
dominant epistasis d. partial dominance
21. In humans,
the ability to roll the tongue is a dominant trait. The inability to roll the
tongue is a recessive trait. If two individuals homozygous recessive for this
trait have a child, what is the chance that the child will be able to roll his
tongue?
a.
100% c.
25%
b.50% d.
0%
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