Understanding Cell Biology: A Crash Course Quiz

What is the total number of cells acting as co-stars in our body?

• About 37 thousand

• About 37 billion

• About 37 million

• About 37 trillion

What triggers a flurry of cell division to heal a wound?

• Eating healthy food

• Sleeping well

• Getting a cut or scrape

• Drinking water

Which cells divide often throughout your entire life?

• Skin and digestive tract cells

• Heart cells

• Nerve cells

• Muscle cells

Which cells in the body do not divide at all once you are an adult?

• Liver cells

• Nerve and muscle cells

• Digestive tract cells

• Skin cells

Which phase is not part of a cell's interphase?

• G1 phase

• S phase

• G2 phase

• M phase

Which of the following is not a function of cells during interphase?

• Making and secreting insulin

• Preparing to grow and divide

• Running chemical reactions to digest food

• Dividing into two identical cells

During which phase does a cell replicate its DNA?

• G1 phase

• S phase

• M phase

• G2 phase

What happens during the S phase of interphase?

• Cells grow in size

• Cells replicate their DNA

• Cells divide into two

• Cells rest and do not perform any function

What is the role of centrosomes in cell division?

• Secreting hormones

• Replicating DNA

• Organizing materials for division

• Producing energy

What does cytokinesis result in?

• Replication of DNA

• One cell becoming two

• Production of insulin

• Growth of cell size