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Flashcards in German: Cell Biology Deck (12):
1

8 differences between prokaryotes (P) and eukaryotes (E)

1. size: P: 1-5 umE: 10-500 um2. P: cell wall; E: no cell wall3. OrganellesP: No membrane-bound organellesE: Membrane bound organelles4. DNAP: cytoplasmic DNAE: Nuclear DNA5.P: No cytoskeletonE: Cytoskeleton6. RibosomesP: 70sE: 80s7. ReplicationP: Binary fissionE: Mitosis8.Genetic DiversityP: mutationE: meiosis/ recombination

2

Gram-Positive Bacteria cell wall make up vs gram negative?

Has an exposed glycoprotein layer in gram positive vs an extra Lipopolysaccharide layer in gram negative.

3

What is required for clathrin-mediated endocytosis?

dynamin

4

What is the endocytic pathway of something that the cell wants to destroy?

Endocytosis-Early endosome-late endosome-lysosome

5

What is the endocytic pathway of something that will be endocytosed and sent back to the plasma membrane?

1. endocytosis

2. early endosome

3. recycling endosome

4. exocytosis

6

How does the late endosome differ from the early and recycling endosomes?

It is a multi vesicular structure.

7

What is the endocytic pathway of something that needs to be transported within the cell to something other than a lysosome?

1. Endocytosis

2. Early endosome

3. Multi vesicular body (MVB)

4. To either the golgi complex, mitochondria or nucleus

8

What proteins dictate what goes where in the endocytic pathway?

RAB GTPases

9

What does the pH do as you get closer to the nucleus?

It decreases

10

What are the three types of molecular motors, what type of cellular fiber do they travel upon, and what direction can they travel?

1. Kenesin, microtubules, anterograde (toward exterior)

2. Dynein, microtubules, retrograde

3. Myosin, actin, both directions

11

What direction does RNA read and produce DNA?

RNA reads DNA from 3' to 5' and produces it from 5' to 3'

12