1.  Definitions and
 MCQs on
Branches of Biology
Biology: 1 Dr. Sajid Ali Talpur

2. The Branches
1. Zoology: - the scientific study of animals is called
zoology
2. Botany: - the scientific study of plants is called
botany.
3. Microbiology: - the scientific study of
microorganisms (e.g. virus, bacteria, protozoan
etc.) is called microbiology.
4. mycology: -the scientific study of fungi is called
mycology
5. Phycology: - the scientific study of algae is called
phycology.
6. Entomology: -the scientific study of insects is
called entomology.
7. Ichthyology: -the scientific study of fishes is
called ichthyology.
8. Ornithology: -the scientific study of birds is called
ornithology.
9. Virology: - the scientific study of virus is called
virology.
10. Bacteriology: -the scientific study of bacteria is
called bacteriology.
Biology: 2 Dr. Sajid Ali Talpur

3. 11. Physiology: -the scientific study of functions of the
body parts is called physiology.
12. Parasitology: -the scientific study of parasites,
including their life cycle, mode of transmission &
interaction with host.
13. human biology: -the scientific study of humans
regarding their evolution, anatomy, physiology,
health, genetics etc
14. Biotechnology: -biotechnology can be defined as
the use of living organisms for the welfare of
mankind.
15. Genetics: -the scientific study of inheritance and
the genetic constitution of an organism is called
genetics.
16. Paleontology: - the scientific study of fossils (the
remains of the organisms of the past) is called
paleontology.
17. Anatomy: - the scientific study of internal
structures of an organism is called anatomy.
18. Morphology: -the scientific study of external body
structures is called morphology.
19. Social biology: - the scientific study of social
interactions of organisms is called social biology.
20. Marine biology: the scientific study of organisms
inhabiting sea and ocean and effect of their
environment on them.
Biology: 3 Dr. Sajid Ali Talpur

4. 21. Fresh water biology: the scientific study of fresh
water life is called fresh water biology.
22. Environmental biology or ecology: -the scientific
study of environment and its effects on organisms.
23. Ethology: -the scientific study of behavior of an
organism is called ethology.
24. Gerontology: -the science of aging is called
gerontology.
25. Embryology: - the scientific study of embryo i.e.
from zygote to the formation of complete organism
26. Cytology or cell biology: - it is the scientific study
of cell.
27. Biochemistry: -the science dealing with
biomolecules and their interactions within the
living system is called biochemistry.
28. Molecular biology: -the scientific study of
molecules that are found within the living system.
29. Taxonomy: -the branch of biology dealing with
the classification of organisms is called taxonomy.
30. histology: -the scientific study of tissues is called
histology.
Biology: 4 Dr. Sajid Ali Talpur

5. Multiple Choice Questions
1. The vector of malaria is studied in:
a) Microbiology b) Parasitology
c) Entomology d) anatomy
2. The lion in the zoo is not as aggressive as it is in
wild. The statement refers to
a) zoology b)ethology
c) evolution d)ecology
3. About half of the birds of world live in tropical rain
forest, they evolved from reptiles, have Para
bronchi in their lungs; are the headings of:
a) ecology b) evolution
c) Anatomy d) ornithology.
4. The cause of malaria is studied in
a) Microbiology b) parasitology
c) Entomology d) anatomy
5. The organisms that can interbreed would be called
a) species b)population
c) community d)A.O.T
6. There are 10 horses and 10 donkeys inhabiting an
area of 10 km2 produce 7 mules after interbreeding.
Which statement is true?
a) Horses and donkeys are same species
b) They are different species
c) they are different species because they can not
interbreed
d) They are same species because they can
interbreed.
Biology: 5 Dr. Sajid Ali Talpur

6. 7. It is difficult to define
a) cell b)biology
c) life d)living things
8. In a pond there are 10 fishes, 5 frogs, 20 amoeba
and 28 algae. They constitute excluding pond:
a) species b)population
c) community d)ecosystem
9. The pH of a pond is 7, its temperature 25oC, and
2.5 m deep, containing 12 fishes, 2 snakes, 4 frogs
and 28 paramecium. The most appropriate word
defining pond is
a) freshwater b)ecosystem
c) population d)community
10. They evolved earlier
a) bacteria b)humans
b) plants d)amoeba
11. The sub-cellular living machinery of cell is called
a) inclusions b)organelles
c) cytosol d)A.O.T
12. These days chemotherapy is successfully treating
diseases like
a) AIDS b)cancer
c) T.B d) common cold
e) Both a & b
13. The basic entity of matter
a) Electron, proton, neutron b) atom
c) Cell d) molecule
Biology: 6 Dr. Sajid Ali Talpur

7. 14. The basic entity in which life can exist
a) Electron, proton, neutron b) atom
c) Cell d) molecule
15. The cause of hepatitis is a virus (HIV). It would be
studied under
a) virology b)parasitology
c) microbiology d)both a & b
16. The microscopic virus attacks bacteria and kills it.
The bacteria ought to be studied under the
disciplines of:
a) Microbiology b) parasitology
c) Molecular biology d) genetics
17. Virus, bacteria and protozoa are studied in
a) Microbiology b) parasitology
c) Molecular biology d) genetics
18. The insects may be biting and chewing, piercing
and sucking, sponging, siphoning and lapping. This
refers to:
a) physiology b)entomology
c) evolution d)A.O.T
19. Cure for diabetes and growth hormones for dwarfs
are now possible with the advancement in
a) biochemistry b)biotechnology
c) medicine d)genetics
20. Fish living in river is studied in
a) ichthyology b)freshwater biology
c) marine biology d)ecology
Biology: 7 Dr. Sajid Ali Talpur

8. 21. The study of environmental effects on organisms is
a) environmental biology b)ecology
c) both a & b d)paleontology.
22. The life cycle, mode of transmission and
interaction of plasmodium with its hosts is studied
in
a) microbiology b)parasitology
c) both a & b d)ecology
23. The bacteria living in the roots of plants and in the
intestine of animals help their host grow better,
their life cycle, mode of transmission and
interaction with their host is studied under
a) microbiology b) parasitology
c) both a & b d) ecology
24. In an area of 5 km2, 3m deep water there were 20
hag fishes after 2 days 30 star fishes and 40 salmon
fishes occupied the region. Which statement is not
true
a) their study is ichthyology
b) they form a community
c) they belong to different species
d) they nutrition requirement is not same
25. The above mentioned animals are studied in
a) fresh water biology
b) marine water biology
c) may be in fresh water or marine water biology
d) ichthyology
26. DNA is composed of nucleotides and the amino
acids are the monomers of proteins. The statement
comes from
a) Molecular biology b) microbiology
c) Biotechnology d) genetics
Biology: 8 Dr. Sajid Ali Talpur

9. 27. Group of similar cells form some structures that in
turn combine to generate
a) tissues b)organs
c) cells d)organism
28. Bone is a type of
a) cell b) tissue
c) organ d) a hard structure.
29. Heart pumps, brain memorize, kidneys excrete.
The statement come from.
a) physiology b)anatomy
c) morphology d)cardiology
30. The study of the unit formed by similar cells is
called
a) cytology b) cell biology
c) both a and b d) histology
Answer key:
1 C 2 B 3 D
4 B 5 A 6 B
7 C 8 C 9 B
10 A 11 B 12
13 B 14 C 15 D
16 A 17 A 18 D
19 B 20 A 21 C
22 B 23 A 24 A
25 B 26 A 27 B
28 B 29 A 30 D
Biology: 9 Dr. Sajid Ali Talpur

10. Biology: 10 Dr. Sajid Ali Talpur

11. Biology: 11 Dr. Sajid Ali Talpur

12. Biology: 12 Dr. Sajid Ali Talpur