🧫
covered!)
Learning Objective:
● Biomolecules
● 🧬 Introduction to 🌿
(Macromolecules)
🔋
● Photosynthesis
● 🧪 Cell Theory
Biology
➗
● Cellular Respiration
● 🔬 Cell Structure & 🧬
● Cell Division
🐒
● Genetics & Heredity
● 🚪 Cell Membrane &
Function
🌍
● Evolution
● Ecology
Transport
WE WILL INCLUDE THE FOLLOWING:
📘 Full coverage of Grade 9 Biology topics
•
• ❓ Practice questions after every topic
• 📝 MCQs, short-answer, and long-answer questions at last
• ✅ Answer keys and explanations
• 🧠 Important definitions & key terms
• 📊 Diagrams with labelled explanations
• ⭐ Exam-important & frequently asked questions
• 🔁 Quick revision summaries
• 📚 Real-life examples & applications
• 🧪 Simple experiments & activities
• 🧩 Concept-based and critical-thinking questions
LET'S START!!
, 🧬 Introduction to Biology
🧬 What is Biology? – Biology is the study of living organisms and
their interactions with the environment. It helps us understand life
processes and health.
🌿 Branches of Biology – Major branches include botany (plants),
zoology (animals), and microbiology (microorganisms). Each branch
focuses on a specific type of life.
🔍 Characteristics of Living Organisms – Living things grow,
respire, reproduce, respond to stimuli, and maintain internal balance.
These features distinguish them from non-living things.
🧪 Scientific Method – The scientific method involves observation,
hypothesis, experimentation, and conclusion. It helps scientists find
reliable answers to questions.
⚙️ Tools, Measurement & Lab Safety – Tools like microscopes,
thermometers, and balances ensure accurate measurements. Lab
safety rules protect students from accidents.
📘 Key Terms – Biology means the study of life, a cell is the basic unit
of life, and an organism is any living thing.
❓ Practice Question (Answered)
Q: What is biology?
A: Biology is the branch of science that studies living organisms and
life processes.
🔁 Quick Revision – Biology helps us understand living beings,
their functions, and their relationship with the environment.
, 🧪 Cell Theory
🧪 What is Cell Theory? – Cell theory states that all living organisms
are made of cells. The cell is the basic structural and functional unit of
life.
🔬 Discovery of Cells – Robert Hooke first observed cells in cork
using a microscope in 1665. Later, scientists expanded the
understanding of cells.
📜 Main Points of Cell Theory – All organisms are composed of one
or more cells, cells are the basic unit of life, and new cells arise from
pre-existing cells.
🧫 Types of Cells – Cells can be unicellular or multicellular. They
differ in shape, size, and function based on their role.
🧠 Importance of Cells – Cells carry out all life processes such as
respiration, growth, and reproduction. Without cells, life cannot exist.
📘 Key Terms – Cell is the smallest living unit, unicellular means
one-celled, and multicellular means many-celled organisms.
❓ Practice Question (Answered)
Q: What does cell theory state?
A: Cell theory states that all living organisms are made of cells, and
all cells arise from pre-existing cells.
🔁 Quick Revision – Cells form the basis of all living organisms and
are essential for life.