Understanding Cell Biology Through Crash Course

How many cells act as co-stars in the story of our life?

• About 37 thousand

• About 37 trillion

• About 37 million

• About 37 billion

What triggers a flurry of cell division to repair a skin injury?

• Drinking water

• Getting a cut or scrape

• Eating healthy food

• Sleeping well

During which phase do cells spend 90% of their time?

• G1 phase

• Mitotic phase

• Interphase

• Cytokinesis

What does the G0 phase signify for a cell?

• It is about to divide

• It is preparing for DNA replication

• It is in a state of active division

• It has exited the cell cycle and is not dividing

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What is the purpose of the S phase in the cell cycle?

• DNA replication

• Cell growth

• Cell division

• Protein synthesis

What happens during cytokinesis in plant cells?

• A new wall is formed in the middle

• Spindle fibers form

• The cell membrane cinches in

• Chromosomes are replicated

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What mnemonic helps remember the phases of mitosis?

• Please Make Another Tea, Chef

• Pass My Anatomy Test, Coach

• Pass Me A Taco, Chef

• Please Move Aside, Tiny Cells

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What is the significance of the mitotic spindle?

• It helps in DNA replication

• It synthesizes proteins

• It organizes the cell's organelles

• It assists in chromosome alignment and separation

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What is the role of checkpoints in the cell cycle?

• To ignore DNA damage

• To stop the cell cycle if necessary

• To speed up cell division

• To ensure cells divide uncontrollably

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What can cause cancer cells to form?

• Drinking plenty of water

• Eating vegetables

• A breakdown in the cell cycle control system

• Regular exercise

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