This presentation deals with definition of the subject as well as its branches and future prospects.... FOR FURTHER DETAILS YOU CAN WATCH THE RELATED VIDEO AT THE GIVEN LINK https://www.youtube.com/channel/UCxo06Nj-QWo_7SNvMyDnJCQ?view_as=subscriber

1. BIOLOGY
CLASS XI
INTRODUCTION
By:
Dr Heena Devnani
M.Sc. Ph.D.

2. WHAT IS BIOLOGY????
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3. WHAT IS BIOLOGY???
•It is the science of life forms and living
processes.
•Biology is defined as the study of living
organisms, their origins, anatomy,
morphology, physiology, behavior and
distribution.
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4. BRANCHES OF BIOLOGY……
ANATOMY: study of internal
structure of organisms and
their parts
BIOCHEMISTRY: study of
chemical processes that
occur within living organisms
BIOPHYSICS: study of
application of laws of physics
in biological processes
BIOTECHNOLOGY:exploitation
of biological processes such as
genetic manipulation of micro-
organisms for the production of
antibiotics, hormones, etc.
BOTANY: study of plants,
including their physiology,
structure, genetics, and ecology
CELL BIOLOGY: study of cell structure
and function, and it revolves around
the concept that the cell is the
fundamental unit of life
ECOLOGY: deals with the relations of
organisms to one another and to their
physical surroundings.
EVOLUTION: the process by which different
kinds of living organisms are thought to
have developed and diversified from
earlier forms during the history of the
earth
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5. BRANCHES OF BIOLOGY……
GENETICS: study of genes,
genetic variation, and heredity
in living organisms
IMMUNOLOGY: branch of
medicine and biology
concerned with immunity
MOLECULAR BIOLOGY: deals
with the structure and
function of the proteins and
nucleic acids.
MICROBIOLOGY: study of
microscopic organisms, those
being unicellular, multicellular,
or acellular.
PHYSIOLOGY: deals with the
normal functions of living
organisms and their parts
STRUCTURAL BIOLOGY: branch of
molecular biology, biochemistry, and
biophysics dealing with the molecular
structure of biological macro-molecules.
VIROLOGY: branch of science that
deals with the study of viruses
ZOOLOGY: study of the behavior,
structure, physiology, classification,
and distribution of animals.
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6. WHY BIOLOGY????
H.W.
Write two examples of
each sector…
Understanding
our bodies
Treating diseases
Proper nutrition
Exercise science
Understanding
Our
Environment
Conservationism
Using Natural
Resources
Harvesting Food
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7. CAREER OPTIONS IN BIOLOGY…….
Biology degrees are extensive, so as you might expect, careers for biology
graduates are equally as wide-ranging. Careers you could pursue with a
biology degree include:
• Research scientist
• Pharmacologist
• Biologist
• Ecologist
• Nature conservation officer
• Biotechnologist
• Forensic scientist
• Government agency roles
• Science writer
• Teacher05-05-2020 Dr Heena Devnani 7

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