Bacteria, Viruses, Cells: Differences & Characteristics

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SUMMARY

Bacterial cells typically contain a single circular chromosome, while plant cells possess multiple chromosomes. Glycogen is utilized as an energy storage molecule in certain animals but is not found in bacteria or plants. Both bacteria, such as cyanobacteria, and plants produce cellulose, while viruses are not classified as cells due to their lack of cellular components necessary for self-replication. The appearance of yeast, bread mold, and field mushrooms can be distinguished microscopically, with yeast being edible and bread mold often being toxic.

PREREQUISITES
  • Understanding of basic cell biology concepts
  • Knowledge of microbial structures and functions
  • Familiarity with the differences between prokaryotic and eukaryotic cells
  • Basic microscopy skills for observing microbial colonies
NEXT STEPS
  • Research the structure and function of bacterial chromosomes
  • Study the role of cellulose in plants and certain bacteria
  • Explore the classification of viruses and their characteristics
  • Learn about the microscopic identification of fungi and their differences
USEFUL FOR

Students, educators, microbiologists, and anyone interested in the fundamental differences between bacteria, viruses, and cells.

sueanne
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pls if anyone can answer the following, ill be so grateful...

- do bacterial cells and plant cells have chromosones, glycogen and cellulose??
- why is a virus not considered to be a cell??
- wots the difference between the appearance of yeast, bread mould and the field mushroom?
( is it because yeast is edible, while we can't eat bread mould cos it poisonous)
 
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sueanne said:
- do bacterial cells and plant cells have chromosones, glycogen and cellulose??


Chromsome are present in every organism carrying DNA. For most bacteria the there is only 1 chromosome and it is a circle; however several exception exist. Plants also have chromsome and tend to have more chromosome than animals.

For glycongen, only certain type of animals will use glycogen as energy storage. It is not use by bacteria and plant as a energy storage.

For cellulose, both bacteria (for example cyanobacteria) and plant produce cellulose. Urochordates are the only animals that produce cellulose.

sueanne said:
- why is a virus not considered to be a cell??

Because it does not have the basic component of what is consider a cell. Viruse are only a protein coat with or without lipid membrane and a chromosome. A cell needs material that will enable it to self-replicate to a certain extent.


sueanne said:
- wots the difference between the appearance of yeast, bread mould and the field mushroom?
( is it because yeast is edible, while we can't eat bread mould cos it poisonous)

This might give you a clue to what they want. If you look in a microscope and look at the colony of the organism what are the difference.

Budding yeast
Cells
http://wwwuser.gwdg.de/~molmibio/images/yeastnew.jpg
Colony http://biology.clc.uc.edu/fankhauser/Labs/Microbiology/Yeast_Plate_Count/08_yeast_colonies_P7201186.jpg

Bread Mold
Cells
http://www.sciencenmore.com/brmold.jpg
Colony
http://food.oregonstate.edu/images/safety/bread_mold.jpg
 
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thanks a lot !
 

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