Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

1. Overview of Cell Biology

Eukaryotic Cell Architecture

Cell Biology

1. Overview of Cell Biology

Eukaryotic Cell Architecture

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Multiple Choice

Eukaryotic cell division is more complicated than binary fission because eukaryotes house their DNA in which of the following structures?

Ribosomes

The cytoplasm

A membrane-bound nucleus

The cell wall

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Verified step by step guidance

Understand the context of the question: Eukaryotic cells differ from prokaryotic cells in that they have membrane-bound organelles, including a nucleus, which houses their DNA. This is a key feature of eukaryotic cells.

Review the options provided: Ribosomes, the cytoplasm, a membrane-bound nucleus, and the cell wall. Each of these structures has a specific role in the cell.

Clarify the role of each structure: Ribosomes are responsible for protein synthesis and are not involved in housing DNA. The cytoplasm is the gel-like substance that fills the cell but does not enclose DNA. The cell wall provides structural support in some eukaryotic cells (like plants) but does not house DNA. The membrane-bound nucleus is the organelle that contains the cell's DNA in eukaryotic cells.

Identify the correct answer: Based on the explanation above, the DNA in eukaryotic cells is housed in the membrane-bound nucleus, which is a defining characteristic of eukaryotic cells.

Conclude by emphasizing the importance of the nucleus: The presence of a membrane-bound nucleus allows eukaryotic cells to regulate gene expression and DNA replication more efficiently, which is why their division process (mitosis) is more complex than binary fission in prokaryotes.