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Questions and Answers
How does Cytokinesis differ between Animal and Plant cells?
How does Cytokinesis differ between Animal and Plant cells?
In animal cells, cytokinesis involves the formation of a contractile ring composed of actin filaments, which pinches the cell membrane, creating a cleavage furrow that divides the cell into two daughter cells. In contrast, plant cells form a cell plate in the middle of the cell, which develops from vesicles produced by the Golgi apparatus, ultimately forming a new cell wall between the daughter cells.
The following figure shows a bacterium undergoing Binary Fission
Explain (briefly) this Mechanism.
The following figure shows a bacterium undergoing Binary Fission Explain (briefly) this Mechanism.
The Chromosomes attaches to the Plasma membrane, and the overall volume of the cell increase, along with the Replication of DNA, therefore two DNA. The cell wall and plasma membrane grow inward. Moreover, the chromosomes are pulled apart, thus the formation of a new cell.
Describe the role of checkpoints in the cell
cycle and explain how they ensure proper cell
division.
Describe the role of checkpoints in the cell cycle and explain how they ensure proper cell division.
Role of Checkpoints in the Cell Cycle: Checkpoints in the cell cycle are control mechanisms that ensure the proper progression of the cell through key stages. They monitor DNA integrity, cell size, and the presence of growth factors before allowing the cell to proceed to the next phase. Checkpoints help pre
Explain how defects in checkpoint mechanisms
can lead to uncontrolled cell growth and
contribute to cancer development
Explain how defects in checkpoint mechanisms can lead to uncontrolled cell growth and contribute to cancer development
Compare and contrast mitosis and cytokinesis,
highlighting their roles in the cell cycle.
Compare and contrast mitosis and cytokinesis, highlighting their roles in the cell cycle.
What are the main differences
between euchromatin and
heterochromatin?
What are the main differences between euchromatin and heterochromatin?
Describe the process of binary
fission in prokaryotic cells and compare
it to mitosis in eukaryotic cells.
Describe the process of binary fission in prokaryotic cells and compare it to mitosis in eukaryotic cells.
Why do neurons and some other specialized cells divide infrequently?
Why do neurons and some other specialized cells divide infrequently?
What are cyclins and how do they regulate the cell cycle?
What are cyclins and how do they regulate the cell cycle?
Identify the main checkpoints in the cell cycle and their functions.
Identify the main checkpoints in the cell cycle and their functions.
Two internal factors that are important in advancing the cell cycle are
Two internal factors that are important in advancing the cell cycle are
What happens if a cell fails to pass a checkpoint?
What happens if a cell fails to pass a checkpoint?
How do CDKs become activated in the cell cycle?
How do CDKs become activated in the cell cycle?
Which of the following is released by platelets in the vicinity of an injury?
Which of the following is released by platelets in the vicinity of an injury?
Describe the role of cyclins in the progression of the cell cycle.
Describe the role of cyclins in the progression of the cell cycle.
Name the different checkpoints of the cell cycle, then indicate the events that are checked at each point.
Name the different checkpoints of the cell cycle, then indicate the events that are checked at each point.
Proteins that bind to cells and stimulate cell division are called
Proteins that bind to cells and stimulate cell division are called
What is the significance of checkpoints in the cell cycle?
What is the significance of checkpoints in the cell cycle?
How does the G1 checkpoint influence cell division?
How does the G1 checkpoint influence cell division?
What are cyclin-dependent kinases (CDKs) and their function?
What are cyclin-dependent kinases (CDKs) and their function?
Which of the following triggers the cell's passage past the G2 checkpoint into mitosis?
Which of the following triggers the cell's passage past the G2 checkpoint into mitosis?
What role does the G2 checkpoint play in cell cycle regulation?
What role does the G2 checkpoint play in cell cycle regulation?
Why do cells put their chromosomes through this process of replication, condensation, and separation?
Why do cells put their chromosomes through this process of replication, condensation, and separation?
What happens if there is an error in the DNA and the checkpoint fails to detect and repair it before cell division?
What happens if there is an error in the DNA and the checkpoint fails to detect and repair it before cell division?
Compare homologous chromosomes and sister chromatids in terms of structure and function during cell division.
Compare homologous chromosomes and sister chromatids in terms of structure and function during cell division.
Flashcards
Cytokinesis in Animal vs. Plant Cells
Cytokinesis in Animal vs. Plant Cells
In animal cells, a contractile ring pinches the cell membrane, creating a cleavage furrow to divide the cell. In plant cells, a cell plate forms from Golgi vesicles, creating a new cell wall between daughter cells.
