Morphology of bacteria
•Download as PPTX, PDF•
10 likes•452 views
This document discusses the morphology of bacteria. It describes that bacteria range in size from 0.5-1 micrometers and come in various shapes including cocci, bacilli, vibrios, spirilla and spirochetes. Cocci can arrange themselves as diplococci, streptococci, tetracocci, staphylococci or sarcinae depending on how they divide and group. The document provides examples of different bacterial types and explains their characteristics and arrangements.
Recommended
More Related Content
What's hot
What's hot (20)
Similar to Morphology of bacteria
Similar to Morphology of bacteria (20)
Recently uploaded
Recently uploaded (18)
Morphology of bacteria
- 1. 1 Course : B.Pharma Branch : NA Year/Semester : III Semester By : Abhishek Agrawal MORPHOLOGY OF BACTERIA 1 MICROBIOLOGY
- 2. 2 Course : B.Pharma Branch : NA Year/Semester : III Semester 2 CONTENTS 1. INTRODUCTION 2. SIZE OF BACTERIA 3. SHAPE OF BACTERIA 4. ARRANGEMENTS OF BACTERIAL CELL By : Abhishek Agrawal
- 3. 3 Course : B.Pharma Branch : NA Year/Semester : III Semester 3 INTRODUCTION • It is a unicellular, free living, microscopic microorganism capable of performing all essential functions of life. • They possess both DNA and RNA. • They are prokaryotic microorganism. • They occur in food, soil, water and all natural environment. • They can survive extremes of temperature, pH, oxygen and atmospheric pressure. By : Abhishek Agrawal
- 4. 4 Course : B.Pharma Branch : NA Year/Semester : III Semester 4 SIZE OF BACTERIA • Bacteria are very small microorganism which are visible under the microscope. • Most of the bacteria approximately 0.5μm to 1μm. • High surface area accounts for higher rate of growth and metabolism of bacteria. • An electron microscope is used for clear visualization of internal structure of bacteria. By : Abhishek Agrawal
- 5. 5 Course : B.Pharma Branch : NA Year/Semester : III Semester 5 SHAPE OF BACTERIA On the basis of shape bacteria are classified as: • Cocci • Bacilli • Vibrios • Spirilla • Spirochaetes By : Abhishek Agrawal
- 6. 6 Course : B.Pharma Branch : NA Year/Semester : III Semester 6 SHAPE OF BACTERIA COCCI • Cocci are small, spherical or oval cell. • It is derived from Greek word “Kokkos” means berry. E.g: staphylococcus, micrococcus, streptococcus By : Abhishek Agrawal
- 7. 7 Course : B.Pharma Branch : NA Year/Semester : III Semester 7 SHAPE OF BACTERIA Bacilli • They are straight rod shaped cell. • It is derived from Greek word “Bacillus” means stick. • In some of the bacilli the length of the cell may be equal to width. such bacilli are known as coccobacilli (E.g. Brucella, Brucella canis) E.g. Lactobacillus, Hay bacillus, Anthrax bacterium By : Abhishek Agrawal
- 8. 8 Course : B.Pharma Branch : NA Year/Semester : III Semester 8 SHAPE OF BACTERIA Vibrios • They are comma shaped curved rods. • It is a genus of gram negative bacteria • It’s cause foodborne infection • E.g. Vibrios fortis, Vibrios gallicus, Vibrious lentus By : Abhishek Agrawal
- 9. 9 Course : B.Pharma Branch : NA Year/Semester : III Semester 9 SHAPE OF BACTERIA Spirilla • They have a helical shape. • They are enlarge rigid cell with several curves or coils. E.g. Spirillum volutans By : Abhishek Agrawal
- 10. 10 Course : B.Pharma Branch : NA Year/Semester : III Semester 10 SHAPE OF BACTERIA Spirochaete • They are slender and spiral form • They contain double membrane • They have corkscrew shaped By : Abhishek Agrawal
- 11. 11 Course : B.Pharma Branch : NA Year/Semester : III Semester 11 ARRANGEMENT OF BACTERIAL CELL Cocci appears as several arrangement or grouping such as: • Diplococci • Streptococci • Tertracocci • Staphylococci • Sarcinae By : Abhishek Agrawal
- 12. 12 Course : B.Pharma Branch : NA Year/Semester : III Semester 12 ARRANGEMENT OF BACTERIAL CELL Diplococci The cell divide in one plane and remain attached in pairs. E.g. diplococcus pneumoniae By : Abhishek Agrawal
- 13. 13 Course : B.Pharma Branch : NA Year/Semester : III Semester 13 ARRANGEMENT OF BACTERIAL CELL Streptococci The cell divide in one plane and remain attached to form chains. By : Abhishek Agrawal coccus streptococci
- 14. 14 Course : B.Pharma Branch : NA Year/Semester : III Semester 14 ARRANGEMENT OF BACTERIAL CELL Tetracocci The cell divide in two planes and characteristically form groups of four cell. By : Abhishek Agrawal coccus Tetracocci
- 15. 15 Course : B.Pharma Branch : NA Year/Semester : III Semester 15 ARRANGEMENT OF BACTERIAL CELL Staphylococci The cell divide in three planes in an irregular pattern producing bunches of cocci. By : Abhishek Agrawal coccus staphylococci
- 16. 16 Course : B.Pharma Branch : NA Year/Semester : III Semester 16 ARRANGEMENT OF BACTERIAL CELL Sarcinae cells divide in three planes in a regular pattern producing a cuboidal arrangement of cells. By : Abhishek Agrawal Coccus Sarcinae
- 17. 17 Course : B.Pharma Branch : NA Year/Semester : III Semester 17 ARRANGEMENT OF BACTERIAL CELL By : Abhishek Agrawal • Spherical is called to coccus. • Division along the same plane forms chain: 2 cocci together- Diplococcus • 4-22 in chains – Streptococcus • Division along two different planes- Tetrads • Division along 3 planes regularly- Sarcinae • Division along 3 planes irregularly- Staphylococci
- 18. 18 Course : B.Pharma Branch : NA Year/Semester : III Semester 18 Thank You! By : Abhishek Agrawal