BIOLOGY MULTIPLE CHOICE QUESTIONS
Below are multiple choice questions in biology which can be use by those who need to review about biology.
1. The adult human of average age
and size has approximately how many quarts of blood? Is it:
a)
4 c)
8
b) 6 d) 10
2.
Surplus red blood cells, needed to meet an emergency, are MAINLY stored in what
organ of the human body? Is it the:
a) pancreas c)
liver
b) spleen d) kidney
3.
Once the erythrocytes enter the blood in humans, it is estimated that they have
an average lifetime of how many days. Is it:
a) 10 days c) 200 days
b) 120 days d) 360
days
4. Of the following, which mechanisms are
important in the death of erythrocytes (pron: eh-rith-reh-sites) in human
blood? Is it
a) phagocytosis (pron:
fag-eh-seh-toe-sis)
b) hemolysis
c) mechanical damage
d) all of the above
5. When a human donor gives a
pint of blood, it usually requires how many weeks for the body RESERVE of red
corpuscles to be replaced? Is it:
a) 1 week c) 7 weeks
b) 3 weeks d) 21 weeks
6. The condition in which there is a DECREASE in
the number of white blood cells in humans is known as:
a) leukocytosis (pron:
lew-kO-sigh-toe-sis)
b) leukopenia (pron:
lew-kO-pea-nee-ah)
c) leukemia (pron: lew-kee-me-ah)
d) leukohyperia (pron:
lew-kO-high-per-e-ah)
7. The
smallest of the FORMED elements of the blood are the:
a) white cells c)
platelets
b) red cells d)
erythrocytes
8. When a wound occurs in humans, the platelets
in the blood activate a substance which starts the clotting process. The
substance which starts the clotting is:
a) adenosine (pron:
ah-den-ah-seen)
b) histamine
c) lecithin (pron: less-ah-thin)
d) thrombin
9.
Lengthening of long bones in humans occurs in a particular area of the
bone. This area is called the:
a) medullary canal
b) cancellous bone
c) periosteum (pron:
per-E-ahs-tee-em)
d) epiphysis (pron:
eh-pif-eh-sis)
10. The part of the human brain which is an
important relay station for the sensory impulses and also is the origin of many
of the involuntary acts of the eye such as the narrowing of the pupil in bright
light is the:
a) hypothalamus c)
corpus callosum
b) midbrain d)
cerebellum
11. In which
cerebral lobes is the speech center located? Is it the:
a) frontal c) temporal
b) parietal d)
occipital
12. What eight-letter name starting with the
letter "O" is given to that branch of medical science concerned with
the study of tumors?
Answer:
Oncology
13. Cariology
is the study of the:
a) human heart c)
kidneys
b)
tooth decay d)
liver
14. During the final stage of
cell division, the mitotic apparatus disappears, the chromosomes become
attenuated, the centrioles duplicate and split, the nuclear membrane becomes
reconstituted and the nucleolus reappears. This phase of cell division is known
as:
a) prophase (pron: prO-phase) c) anaphase
b)
metaphase d)
telophase
15. The major
fibrous proteins are:
a) peptone and edestin c) valine
and lysine
b) glutelin and leucine d) myosin
and actin
16.
From which grandparent or grandparents did you inherit your mitochondria (pron:
my-toe-chon-dria)? Is it your:
a) mother's parents c)
grand mothers
b) paternal grandfather d)
maternal grandmother
17. Which of
the following is an INCORRECT statement about the parasympathetic system?
a) It increases digestive action.
b) It is the fight or flight
system.
c) slows breathing rate
d) establishes resting state
18. Which of
the following is NOT a component of the human axial skeleton?
a) sternum c) tarsals
b) vertebral column d)
skull
19. Bile has
what function in digestion?
a) emulsify lipids
b) digest proteins
c) gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis)
d) digest carbohydrates
20. A heart
with a single atrium and single ventricle is a characteristic of adult:
a) amphibians c)
birds
b) arthropods d)
fish
21. The type of gene interaction in which the
effects of one gene override or mask the effects of other entirely different
genes is called:
a) linkage
b) mutation
c) pleitropy (pron: ply-ah-tropy)
d) epistasis (pron:
eh-pis-te-sis)
22. For which
of the following creatures is fat the greatest percentage of body weight?
a) termite c) zebra
b) blue whale d)
female lion
23. Name
three basic morphologies of bacteria.
ANSWER:
(1) COCCI (COCCUS), (2) BACILLI (BACILLUS) or ROD, (3) SPIROCHETES or SPIRILLA
or SPIRAL
24. How many
chromosomes per cell does a Down's Syndrome (trisomy 21) victim have?
ANSWER: 47
25.
If a male who is heterozygous for an autosomal trait mates with a female who is
also heterozygous for that trait, what percent of their offspring are likely to
be heterozygous for this trait as well?
ANSWER: 50%
26.
The chromosomes responsible for
characteristics other than sex are known by which of the following terms?
a)
ribosomes c)
autosomes
b)
lysosomes d)
spermatocytes
27. What genetic term describes the situation
when a part of a chromosome is broken off and lost?
ANSWER: CHROMOSOMAL DELETION
28. When a color blind man marries a woman pure
for normal color vision, it is probable that one of the following situations
may result. Is it probable that
a) all the children will be color
blind
b) all the grandchildren will be
color blind
c) only the sons will be
colorblind
d) half the grandsons will be
color blind
29. The
process by which an amino acid loses its amino group is called:
a) hydration c)
oxidoamination
b) deamination d) dehydration
30. An individual with three X chromosomes is likely
t be:
a) a clinically normal female c) a Turner's individual
b) an abnormal female d) a Kleinfelter's individual
31. Osmoregulation
is concerned with:
a) excretion c)
control of the body's water content
b) ionic regulation d) carbon
dioxide regulation
32. Proof that plants can grow and reproduce
using only inorganic nutrients comes
from the study of:
a) phototrophic nutrition c) hydroponics
b) mycorrhiza d) humus
33. What
molecule is the energy source for virtually all of the work done by the cell?
ANSWER: ATP (Adenosine
Triphosphate)
34. Each antibody molecule is made up of how many
PAIR of polypeptide chains, joined together by disulfide bonds.
a) 1 c)
3
b) 2 d)
4
35. Humans
cannot digest cellulose because:
a) it does not contain sugars
b) it is made up of disaccharides
c) it is made up of
monosaccharides
d) humans lack the proper enzymes
36. What are the names given to the basic subunits
of a nucleic acid.
ANSWER: MONONUCLEOTIDES or
NUCLEOTIDES
37.
What is the term given to enzymes whose action is modulated by binding of a
molecule to a site other than the active site?
ANSWER: ALLOSTERIC ENZYMES
38. Octopus
and squid belong to the class of molluscs known as:
a) cephalopoda (pron: sef-eh-lah-pod-ah)
b) bivalvia
c) gastropoda (pron:
gas-tro-pod-ah)
d) polyplacophora (pron:
poly-pla-so-for-ah)
39. Type A
blood contains isohemaglutinins against which red cells?
a) type A c) type O
b) type B d) type G
40. Which of the following statements
is true regarding the ABO blood system?
a.
People who have the A antigen normally would not produce the
anti-A antibody.
b. People
who are type AB normally produce both anti-A and anti-B antibodies.
c. The only ABO type blood that
normally does not have either A or B antigens is AB.
41. An individual's ABO blood type is normally
determined by:
a.
Genetic inheritance and environmental influences during life
b. Environmental
influences alone
c. The inheritance of 1 of 3
possible alleles (A, B, or O) from each parent.
42. In determining the phenotype for the ABO blood
system:
a. O is dominant over A c. O is recessive
b. B is dominant over A d. all of the
above
43. The E. coli genome contains roughly
a. 500,000 nucleotide pairs and 500 genes.
b. 500,000 nucleotide pairs and 1000 genes.
c. 5,000,000 nucleotide pairs and 1000 genes.
d. 5,000,000 nucleotide pairs and 5000 genes.
44. The AB blood type is an example of
____________.
a.
complete dominance c. blending
b.
condominance d. incomplete dominance
45. A pedigree chart
shows:
a. The genotypic ratios of the
offspring.
b. The types of gametes produced by
the parents.
c. The pattern of inheritance of a
specific gene.
d.Which genes are co-dominant.
46. In drosophila (fruit flies), eye colour is
sex- linked and red eye colour is dominant to white eye colour. Which of the
following are not possible in a cross between a red-eyed male and a
heterozygous female?
a. Red- eyed male.
b. White-eyed male.
c. Carrier female.
d. Homozygous white- eyed female
47. Long radishes crossed with round radishes
result in all oval radishes. This type of inheritance is:
a. Multiple alleles.
b. Complete dominance.
c. Co-dominance.
d. Incomplete dominance.
48. If two white
sheep produce a black offspring, the parent’s genotypes for colour must be:
a. Heterozygous.
b. Homozygous white.
c. Homozygous black.
49. 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. 50% c. 0%
b.
25% d.
75%
50.
Name the type
of cell division in which the two resulting cells carry only half the original
number of chromosomes.
ANSWER:
MEIOSIS (pron: my-o-sis)
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