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Micro
Microbiolgy chap 4
| Question | Answer |
|---|---|
| What is the difference between prokaryote and eukaryote cells? | Prokaryote has NO NUCLEUS AND NO MEMBRANE AND NO HISTONES. |
| What is an exaple of a Prokaryote cell? | Bacteria |
| What is an example of a Eukaryote cell? | humans, plants |
| How many domains does the Prokaryote cell have? | 3 domains. Archaea, Bacteria, and Eukarya |
| What is the difference in archaea and bacteria? | Their cell structure and where they grow. |
| What are the 3 basci shapes of a bacteria? | Cocci- sphrericalBaccilli- Rod shapedSpiral- Twisted |
| How is streplococci? | One on top of another, in coccus and in one plane. |
| How is staphylococci? | 3 planes, cluster, cocci |
| How is coccobacillius? | Rod rounded ends |
| How many types of spiral are there? | 3 types; vibras, spirilla, spirochete |
| Which spiral types look like a comma? | vibras |
| Which spiral types look like a wave? | spirochete |
| What is the function of a capsule? | Prevent phagomytosis, nurishes and helps stick, protects from drying |
| What is the capsule made of? | Sugar |
| What is another material the capsule is made of? | Polysaccharide |
| What is the flagella used for | Movement |
| What is the brown movement> | Goes round and round |
| Bacteria that lack flagella are called? | Atrichous |
| A flagella that has singular polar flagellum is called? | Monotrichous |
| A flagella that has tuft at each end is called? | Amphitrichous |
| A flagella that has two or more flagella at one or both ends of cell is called? | Lophotrichous |
| A flagella that has flagella all over the entire cell is called? | Peritrichous |
| What are the three parts of the flagella> | Basal Body, Hook and Filament |
| What are the types of movement? | Run and tumble. run goes straight and tumble shift direction |
| A flagella that has two or more flagella at one or both ends of cell is called? | Lophotrichous |
| A flagella that has flagella all over the entire cell is called? | Peritrichous |
| What are the three parts of the flagella> | Basal Body, Hook and Filament |
| A flagella that has two or more flagella at one or both ends of cell is called? | Lophotrichous |
| What are the types of movement? | Run and tumble. run goes straight and tumble shift direction |
| A flagella that has flagella all over the entire cell is called? | Peritrichous |
| What are the three parts of the flagella? | Basal Body, Hook and Filament |
| What are the types of movement? | Run and tumble. run goes straight and tumble shift direction |
| What is the outer most region of the flagellum? | Filament |
| How many rings does the Gram negative have? | two pair of rings. The outer pair rings is anchored to various portions of the cell wall. and the inner pair rings is ancored to the plasma membrane. |
| How many rings does the gram positive have? | one pair |
| How are Prokaryotic and Eukaryotic cells similiar? | In their chemical compostion and chemical reactions. |
| Where is peptidoglycan found? | In the cells of the prokaryotic cell. |
| How do prokaryotic bacteria multiple? | By binary-fusion |
| What is glycocalyx? | The substances that surrounds the cells. |
| What does glycocalyx consist of? | A viscous(sticky), gelatinous polymer that is external to the cell wall and composed of polysaccharide, polypeptide or both. |
| Another name for flagella? | H antigen |
| What is phototaxis? | Light that produces movement. |
| What is chemotaxis? | Chemicals that produces movement. |
| What is the difference between pili, and fimbraie? | Pili transfer the DNA and Fimbraie attached to the cell and stone |
| What is the difference is size in pili and fimbraie? | Pili are longer the fimbraie |
| What are pili and fimbraie? | Both are Gram negative and only seen in electron microscope. and are both protein. |
| What are the two sugars in peptidoglycan? | NAM and NAG |
| Gram positive cells consits of peptidoglycan and? | polymer consisting of NAM and NAG and short chains of amino acids. |
| Which is thicker Gram + or Gram -? | Gram positive |
| Gram negative have? | NO teichoic acid. Have a lipo protien and phpspholipid and lipopolysaccharide. |
| Which has periplasm? | Gram negative. which is the space between cell membrane and outermembrane. |
| Gram positive cells consits of peptidoglycan and? | polymer consisting of NAM and NAG and short chains of amino acids. |
| What is atrichous? | No hair |
| What is the cell wall? | 2nd layer, and gives shapes to cell. |
| What is the cell wall function? | prevents from water rushing in by holding cell together. |
| what is it endotaxis? | causes high fever and shock. |
| Do all bacteriaum have a cell wall? | No |
| Which bacteria does not have a cell wall? | Microplasma |
| What is protoblast? | A wall less postive cell |
| What is spehroblast? | A wall layer negative cell |
| Why does gram + holds purple color? | Alot of peptidoglycan |
| Why does gram - loose it color? | Alcohol dissolves, fat makes opening bigger and washes it out. |
| What is the plasma membrane function? | Selective barrier, holds cell together |
| What is mesosomes? | Irregular folds in plasma membrane |
| Do bacteria cell have a nucleus? | No cause it a Prokaryotic cell. |
| What is the function of the ribosomes? | synthesis |
| How many ribosomes do the prokaryotic? | 70s |
| What is the process in making in endospores? | Sporulation |
| What is the process in making endospores go back? | Germination |
| Responsible heat resistance at spore? | calcium ions + dipicolonic acid. |
Created by:
shanapiggy
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