Multiple Choice
Which factors determine whether a cell enters the G0 phase?
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11. Cell Division
Cell Cycle Regulation
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Which of the following best describes the role of cell cycle regulators?
A
They are carbohydrates that provide energy for cell division.
B
They are enzymes that facilitate DNA replication during the S phase.
C
They are proteins that control the progression of cells through the cell cycle.
D
They are lipids that form the cell membrane during cytokinesis.
Verified step by step guidance1
Understand the cell cycle: The cell cycle is a series of phases that cells go through to divide and replicate. It includes phases such as G1, S, G2, and M.
Identify the role of cell cycle regulators: Cell cycle regulators are proteins that ensure the cell progresses through the cycle in a controlled manner, preventing errors and ensuring proper division.
Distinguish between different types of biomolecules: Carbohydrates, enzymes, proteins, and lipids have distinct roles in cellular processes. Proteins are often involved in regulatory functions.
Recognize the specific function of cell cycle regulators: These proteins control checkpoints and transitions between phases, ensuring DNA is replicated correctly and the cell is ready to divide.
Eliminate incorrect options: Carbohydrates provide energy, enzymes facilitate reactions, and lipids form membranes, but none of these directly regulate the cell cycle like proteins do.
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Cell Cycle Regulation practice set
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