11th Std Maharashtra board Biology Syllabus: Organization of the cell. This is a powerpoint presentation to clear the doubts based on the basic concepts of the chapter. All the videos have their respective copyrights and copying or sharing of the powerpoint is not permitted.

1. Prokaryotic & Eukaryotic Cell
Biren Daftary

2. What is a Cell?
• Cell – Basic unit of living things.
Organisms are either:
• Unicellular – made of one cell such as bacteria
and amoeba.
OR
• Multicellular – made of many cells such as
plants and animals.

3. Prokaryotic Cells
• In Greek:
– Pro = before
– karyotic = nucleus
• Cells that do not
have a nucleus
• Bacteria

4. Eukaryotic Cells
• In Greek:
– Eu = True
– Karyotic = nucleus
• Cells that have a
nucleus

5. Prokaryotic vs Eukaryotic
No Nucleus Nucleus
No Membrane – covered
Organelles
Membrane – covered
Organelles
Circular DNA (in a circle) Linear DNA (in a line)
Bacteria All other cells

7. What are organelles
• Organelles are tiny structures with specific
functions within a single cell
• Hence organelles function as organs of the
cell, each having a specific function

8. Prokaryotic Cell

10. Parts of a Prokaryotic cell
1. Capsule
• Outermost protein covering
• Functions: Virulence, attachment to other bacteria
2. Cell wall
• Covers the plasma membrane
• Rigid layer helps in protection
• Cell communication, transport of solutes

11. 3. Plasma membrane
• Covers the cytoplasm
• Cell communication & transport of solutes
4. Cytoplasm
• Gel like fluid inside plasma membrane
• All the organelles are suspended in it

12. 5. DNA
• Circular DNA which stores the genetic information
and acts like the brain of the cell
6. Ribosome
• Small spherical structures responsible for protein
synthesis

13. 7. Pili & Flagellum
• Cilia like or tail like organelles for locomotion
of the cell
• Extension of the plasma membrane

15. Eukaryotic Cell

16. Eukaryotic Cell
Animal Cell Plant cell

18. Organelle Function
Cell wall (Plant) Rigidity & structural support
Plasma membrane Transport of solutes
Cytoplasm Gel like matrix which holds the organelles
together
Vacuole Storage organelle
Nucleus Genetic material & brain of the cell
Ribosome Protein synthesis
Mitochondria Energy producer of the cell, powerhouse
Endoplasmic
reticulum
Transport of synthesized proteins to Golgi
apparatus
Golgi apparatus Storing & packaging of cellular products
Lysosome Digests cellular wastes, suicide bags
Cilia & Flagella
(Animal)
Movement of the cell
Chloroplast (Plant) Photosynthesis, contains chlorophyll