Introduction to Biology — Chapter 1
Biology is the scientific study of living organisms — their structure, function, growth, origin, evolution and distribution. In this chapter we introduce cells, energy, heredity, adaptation and how biology links to everyday life.
What you'll learn
- Define biology and explain its scope.
- Describe why biology matters in daily life — medicine, food, environment.
- List major branches of biology and connect them to real-world problems.
- Use diagrams to represent biological ideas (cell, system, life-cycle).
Concept in more depth
Biology asks how living systems work. We study cells (the smallest living units), how organisms get energy, how information (genes) passes from parents to offspring, and how organisms adapt to changing environments. Modern biology combines observation, experiments and modelling to answer real-world problems — in health, farming, conservation and technology.
Slides — Quick gallery
Microscope view of cells — introduction slide.
Ten important branches of Biology (short)
Botany
Study of plants — structure, growth and uses.
Zoology
Study of animals — behaviour and anatomy.
Microbiology
Microorganisms: bacteria, viruses, fungi.
Ecology
Interactions between organisms & environment.
Genetics
Heredity & variation.
Physiology
Functions of living systems.
Anatomy
Structure of organisms.
Taxonomy
Classification & naming.
Parasitology
Parasites & diseases.
Biotechnology
Using living systems to produce goods.
Revision Exercises (MCQ + short tasks)
Open the revision section to practice. (This area is intentionally simple; exercises are on the revision page.)