Biology form 4(Chap 1 (1)
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Transcript of Biology form 4(Chap 1 (1)
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BIOLOGY FORM 4
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SUBTOPICS1.1 The Study of Biology
1.2 Scientific Investigation
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1.1 - THE STUDY OF BIOLOGY
Learning Outcomes :• To state what the study of Biology
is,• To explain the importance of
Biology,• To list the different fields of study
in Biology,• To list the careers related to
Biology,
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What is Biology?• Do you know what is the meaning
of ‘Biology’?
• Biology comes from Greek word….
• Biology is ………..
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What is Biology?• Includes studying
•The structure & cellular organisation & function of living things,
•The life processes of living things such as respiration, growth, development, reproduction…
•The characteristics of different groups @ categories of living things,
•The plant & animal life of a specific area or region,
•The interaction of living things with one another & with their environment
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CHARACTERISTICS OF LIVING THINGS
• Response to stimuli• Nutrition• Respiration• Metabolism• Growth• Reproduction• Excretion• Able to adapt to different
environments• Locomotion
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IMPORTANCE OF BIOLOGY
• To learn more about ourselves (best reason)
• To understand heredity & the inheritance of genetic abnormalities that cause diseases.
• To understand the function of organisms• To find treatment for diseases (create new
medicine)
• For leisure – gardening, fishing, cooking & bird-watching
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IMPORTANCE OF BIOLOGY• Helps researchers to study human biology –
slow aging process, cure genetic diseases & help paralysed people by making nerve cells grow again
• For better management on environmental problems
• Improved quality & production of food
• Provides numerous opportunities for rewarding & challenging career, especially in biotechnology
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FIELDS OF STUDY IN
BIOLOGY
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STRUCTURE & FUNCTION
• Anatomy – the structure & organisation of organisms
• Biochemistry – elements, compounds & chemical reactions in living organisms
• Cytology - cells
• Histology - tissues
• Morphology – the form @ shape of an organism
• Physiology – mechanical, physical & biochemical functions of living organisms
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MAJOR GROUPING of ORGANISMS
• Bacteriology• Botany • Entomology - cells
• Ichthyology – study of fishes
• Microbiology• Mycology• Ornithology – study of birds
• Taxonomy• Virology
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DEVELOPMENT of ORGANISMS
• Embryology – dev. of the embryo
• Evolutionary biology – concerned with the origin & descent of species
• Genetics – deals with heredity transmission & the variation
• Developmental biology – the process by which organisms grow & develop
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ORGANISMS & THEIR ENVIRONMENT
• Ecology – the distribution & abundance of organisms, their habitat & the interactions between them & their environment
• Ethology – study of animal behaviour
• Biogeography
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APPLIED BIOLOGY• Agriculture• Biotechnology – any technological
application that uses biological systems, living organisms or derivations thereof, to make or modify products or processes for specific use
• Fisheries• Forestry• Medicine• Veterinary medicine• Dentistry
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CAREER RELATED TO BIOLOGY
Agriculturalist, aquaculturalist, biochemist, biotechnologist, botanist, dietitian, ecologist,
ethologist, forester, geneticist, horticulturist, microbiologist, mycologist, neurobiologist, optometrist, pediatrician, physiotherapist, surgeon,
toxicologist, veterinarian, zoologist, doctor (physician), teacher, lecturer,
researcher……….etc.
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OPSS….don’t forget your exercise!!!
EXERCISE 1.1
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