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BIO 204 CH. 4 Questions with 100% Correct Answers | Verified | Latest Update

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Exam of 10 pages for the course BIO 204 at BIO 204 (BIO 204 CH. 4)

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BIO 204 CH. 4



1. What are the two types of cells?: Prokaryotic and Eukaryotic


2. What are the two prokaryotic domains and kingdoms?: Bacteria and Archaea


3. Define prokaryote: Single-celled, has no membrane-bound nucleus, and has little evidence of internal


structure

4. What components of the prokaryotic cell are external to the cell wall?: -


Glycocalyx

- Flagella
- Pili
- Fimbriae

5. What are the two forms of glycocalyx?: Capsule & Slime layer/biofilm


6. What is the appearance of the capsule?


What are the functions of the capsule?: Appearance: organized & thick


Function: protects against phagocytosis, increases virulence
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, 7. What is the appearance of the slime layer?


What are the functions of the slime layer?: Appearance: loose & thin


Function: protects against desiccation, traps nutrients, cell binding, & adhesion to surfaces


8. What are the parts of the bacterial flagella?


What is the function of each part?: Filament: locomotion


Hook: attaches the filament to the motor

Basal body: anchors the hook & filament to the cell wall and plasma membrane

9. What are the arrangements of flagella?: - Monotrichous


- Amphitrichous
- Lophotrichous
- Peritrichous


10. What is a monotrichous flagella?


Amphitrichous flagella?


Lophotrichous flagella?

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