Prokaryotes Flashcards
What are prokaryotes
Cells without a nucleus
What is a eukaryote
Cells with a nucleus
What is the average length of a prokaryote?
Average length is only a few micrometers
What are the three shapes of prokaryotes typically found as ?
Spherical(streptocacus)
Rod-like(E. Coli)
Corkscrew(H. Pylori)
What are the three ways prokaryotes can be found in group?
Individual cell
Chains of cells
Cluster of cells
What are the two domains prokaryotes are divided into?
Bacteria
Archaea
Describe the conditions under which archaea can be found living.
Archaea can live in very harsh environments (sludge, sewage)
Identify the type of sexual production prokaryotes use
Use asexual reproduction (binary fission)
Describe the external & internal structures found on prokaryotes
External is protective coat and/or cell wall
Internal is cytoplasm and DNA, but no specific structures(no bound organelles)
What is the type of sexual reproduction prokaryotes use
Use asexual reproduction(binary fission)
Explain why prokaryotes evolve so readily.
They can evolve because in 11 hours, one cell can divide into over 8 billion and also they exchange genetic material fast
What’s the difference between organic environment and inorganic environment
Organic environment has carbon containing(wood–plastic)
Inorganic environment gets nutrients from surrounding.
Who originated and promoted the Endosymbiotic Theory?
Barba McCintock
State the endosymbiotic theory
All mitochondria in animal cells came from prokaryotes & all chloroplast in plant cells came from prokaryotes
