10.1 Cell Cycle Flashcards
What are the main phases of the cell cycle?
G1, S, G2, and M phases.
True or False: The G0 phase is a stage where cells are actively dividing.
False.
Fill in the blank: The phase of the cell cycle where DNA is replicated is called the _____ phase.
S
What is the primary function of growth factors in the cell cycle?
To stimulate cell division and growth.
Multiple Choice: Which phase is known for preparing the cell for mitosis?
G2
What role do cyclin-dependent kinases (cdks) play in the cell cycle?
They regulate the progression of the cell cycle.
True or False: Inhibitors are proteins that promote cell cycle progression.
False.
What is the significance of the M phase in the cell cycle?
It is the phase where mitosis occurs, leading to cell division.
Fill in the blank: The _____ phase is often referred to as the resting phase of the cell cycle.
G0
Multiple Choice: Which of the following is a type of cell cycle inhibitor?
p21
What do activators do in the context of the cell cycle?
They promote the activation of cyclin-dependent kinases.
True or False: The G1 phase is primarily focused on DNA replication.
False.
What happens during the G1 phase of the cell cycle?
The cell grows and synthesizes proteins necessary for DNA synthesis.
Fill in the blank: The transition from G1 to S phase is regulated by _____ proteins.
cyclin
What is a key checkpoint in the cell cycle and its purpose?
The G1 checkpoint, which ensures the cell is ready for DNA synthesis.
