Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

8. Eukaryotic Cell Structures & Functions

Eukaryotic Cilia & Flagella

Microbiology

8. Eukaryotic Cell Structures & Functions

Eukaryotic Cilia & Flagella

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Multiple Choice

What does the 9 + 2 arrangement of microtubules refer to in structures of cilia and flagella?

The microtubules' length.

The microtubules' association with the basal body.

The microtubules' arrangement in the axoneme.

The microtubules' arrangement embedded in the cytoplasmic membrane.

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Verified step by step guidance

Understand that cilia and flagella are hair-like structures that protrude from the surface of eukaryotic cells and are involved in movement.

Recognize that the '9 + 2 arrangement' refers to the specific structural organization of microtubules within the axoneme, which is the central shaft of cilia and flagella.

The axoneme is composed of nine doublet microtubules arranged in a circle around two central single microtubules, hence the term '9 + 2'.

This arrangement is crucial for the bending and movement of cilia and flagella, as the dynein arms attached to the microtubules generate force through ATP hydrolysis.

The basal body anchors the axoneme to the cell and is structurally similar to a centriole, but the '9 + 2' arrangement specifically describes the axoneme's internal structure, not the basal body or the microtubules' length.