Table of contents

1. Introduction to Anatomy & Physiology5h 40m
2. Cell Chemistry & Cell Components12h 37m
3. Energy & Cell Processes10h 7m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood1h 22m
18. The Heart1h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance Coming soon
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity Coming soon

3. Energy & Cell Processes

Cytokinesis

Anatomy & Physiology

3. Energy & Cell Processes

Cytokinesis

Problem 1a

Textbook Question

Through a microscope, you can see a cell plate beginning to develop across the middle of a cell and nuclei forming on either side of the cell plate. This cell is most likely a. an animal cell in the process of cytokinesis. b. a plant cell in the process of cytokinesis. c. a bacterial cell dividing. d. a plant cell in metaphase.

Verified step by step guidance

Identify the key features described in the problem: a cell plate developing across the middle of a cell and nuclei forming on either side.

Recall that cytokinesis is the process where the cytoplasm of a single eukaryotic cell is divided to form two daughter cells.

Understand that in plant cells, cytokinesis involves the formation of a cell plate, which eventually develops into a new cell wall separating the two daughter cells.

Recognize that animal cells do not form a cell plate during cytokinesis; instead, they form a cleavage furrow.

Conclude that the presence of a cell plate and nuclei indicates the cell is a plant cell undergoing cytokinesis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Cytokinesis

Cytokinesis is the process during cell division where the cytoplasm of a parental cell is divided into two daughter cells. In plant cells, this occurs through the formation of a cell plate that eventually develops into a new cell wall, while in animal cells, the cytoplasm is pinched inwards. Understanding this process is crucial for identifying the type of cell division occurring.

Cell Plate Formation

The cell plate is a structure that forms during cytokinesis in plant cells, arising from vesicles that coalesce at the center of the cell. This plate eventually develops into a new cell wall, separating the two daughter cells. Recognizing the presence of a cell plate is key to distinguishing plant cell division from that of animal cells.

Nuclear Division

Nuclear division, or mitosis, is the process where the cell's nucleus divides, resulting in the formation of two nuclei. This process is essential for ensuring that each daughter cell receives an identical set of chromosomes. The observation of nuclei forming on either side of the cell plate indicates that the cell is in the later stages of cytokinesis following mitosis.