Download Name_________________________ KEY Ch 4 Quiz How is the

Name_________________________
KEY
Ch 4 Quiz
1. How is the DNA organized in Prokaryotic and Eukaryotic organisms? (1)
a. Prokaryotic- Circular
b. Eukaryotic- Linear
2. What is the difference between the rough endoplasmic reticulum and the smooth endoplasmic
reticulum? (1)
Presence of ribosomes
3. DNA is found in the nucleus of Eukaryotic cells. Where else is it found? (1)
Mitochondria and Chloroplasts
4. Name 2 of the 3 types of fibers that make up the cytoskeleton (1)
Microfilament
Intermediate filament
Microtubule
5. Name 2 of the 3 types of intercellular junctions and what function they serve (2)
• Tight junctions can bind cells together into leakproof sheets
• Anchoring junctions link animal cells into strong tissues
• Gap junctions allow substances to flow from cell to cell
6. Which organelle works in conjunction with the endoplasmic reticulum to modify products? (1)
Golgi Apparatus
7. How does the nucleus of a Eukaryotic and Prokaryotic cell differ? (1)
Prokaryotes do not have a membrane bound nucleus, Eukaryotes do.
8. Describe endosymbosis and name the organelles this applies to (2).
Mitochondria and Chloroplasts. Originated as separate prokaryotic organisms who came to live
within the cell environment. Now are unable to live outside of the cell. The cell and the
mitochondria/chloroplast are now reliant on each other.