This document provides an overview of cell biology. It defines a cell as the smallest and basic unit of life responsible for all life processes. Cell biology is then defined as the study of cell structure and function, which are the basic units of life. The document describes the main types of cells - eukaryotic cells which contain membrane-bound organelles like the nucleus, and prokaryotes which are single-celled organisms. It also discusses the cell wall, a protective outer layer found in some cell types, and some key cell functions like movement, conductivity, metabolism and reproduction.

1. CELL
BIOLOGY
CLASS 6 SCIENCE

2. WHAT IS CELL
A CELL IS DEFINED AS THE
SMALLEST, BASIC UNIT OF LIFE
THAT IS RESPONSIBLE FOR ALL OF
LIFE'S PROCESSES.”

3. CELL BIOLOGY
.

4. WHAT IS CELL BIOLOGY
• CELL BIOLOGY IS A BRANCH OF BIOLOGY STUDYING THE STRUCTURE
AND FUNCTION OF THE CELL, ALSO KNOWN AS THE BASIC UNIT OF
LIFE.

5. TYPES OF CELL
• A EUKARYOTIC CELL CONTAINS MEMBRANE-
BOUND ORGANELLES SUCH AS A NUCLEUS,
MITOCHONDRIA, AND AN ENDOPLASMIC
RETICULUM
• PROKARYOTES ARE SINGLE-CELLED
ORGANISMS, WHILE EUKARYOTES CAN BE
EITHER SINGLE-CELLED OR MULTICELLULAR.

6. IMAGE OF EUKARYOTIC CELL AND PROKARYOTES

7. WHAT IS A CELL WALL
A CELL WALL IS A STRUCTURAL
LAYER SURROUNDING SOME
TYPES OF CELLS, JUST OUTSIDE
THE CELL MEMBRANE. IT CAN BE
TOUGH, FLEXIBLE, AND
SOMETIMES RIGID. IT PROVIDES
THE CELL WITH BOTH
STRUCTURAL SUPPORT AND
PROTECTION, AND ALSO ACTS
AS A FILTERING MECHANISM.

8. FUNCTIONS OF CELL
• MOVEMENT (MUSCLE CELLS)
• CONDUCTIVITY (NERVE CELLS)
• METABOLIC ABSORPTION (KIDNEY AND INTESTINAL CELLS)
• SECRETION (MUCOUS GLAND CELLS)
• EXCRETION (ALL CELLS)
• RESPIRATION (ALL CELLS)
• REPRODUCTION (ALL CELLS)

9. THANK
YOU
DONE BY :DEEPASHIKHA.M
DESCRIPTION : NOT TO BE CONFUSED CELL WITH CELL BIOLOGY