Interphase and Regulation of Cell Cycle by CDKs and Cyclin

Interphase and Regulation of Cell Cycle by CDKs and Cyclin

Assessment

Interactive Video

Science, Biology, Engineering

University

Hard

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The video tutorial covers the process of mitosis, explaining how cells divide and replicate their DNA to form identical cells. It introduces apoptosis, a mechanism for programmed cell death, to prevent mutations. The video details the phases of interphase in the cell cycle, emphasizing the importance of nutrient intake and biosynthesis for cell growth. It also discusses the regulation of mitosis entry through cyclin-dependent kinases and cyclins, highlighting the role of checkpoints in preventing DNA mutations.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of mitosis in cell division?

To increase cell size

To produce identical daughter cells

To eliminate damaged cells

To create genetically diverse cells

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is apoptosis?

Cell growth

Programmed cell death

DNA replication

Cell mutation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is mitosis important for skin cells?

To change cell function

To replace old cells with new ones

To increase cell size

To produce energy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which phase of interphase is primarily responsible for DNA replication?

M phase

G2 phase

S phase

G1 phase

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the G1 phase in interphase?

Protein degradation

Cell division

Cell growth and preparation for DNA replication

DNA replication

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role do cyclin-dependent kinases (CDKs) play in the cell cycle?

They repair DNA mutations

They degrade proteins

They phosphorylate proteins to allow cell cycle progression

They synthesize DNA

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do CDKs become activated?

By repairing DNA

By binding to cyclins

By degrading cyclins

By synthesizing DNA

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