AQA - Biology - Understanding Cells and Cancer

What is the control center of a cell?

• Ribosome

• Cell membrane

• Nucleus

• Mitochondria

What do genes in the nucleus control?

• Everything about the cell

• Cell color

• Cell shape

• Cell size

What is the underlying cause of cancer?

• Lack of exercise

• Viral infections

• Poor diet

• Damage to genes

How can damage to genes be caused?

• Only inherited

• Inherited or external harm

• By bacteria

• Only external harm

What is a primary tumor?

• A tumor that has spread

• A tumor where cancer can start

• A tumor that is benign

• A tumor that is harmless

What is the difference between benign and malignant tumors?

• Malignant tumors are harmless

• Benign tumors spread, malignant do not

• Benign tumors do not infiltrate surrounding tissues

• Malignant tumors are always smaller

How do cancerous tumors spread to other parts of the body?

• Through the digestive system

• Through the nervous system

• By invading blood and lymph vessels

• By growing larger

What is metastasis?

• The formation of benign tumors

• The spread of cancer to other parts of the body

• The process of cells multiplying

• The process of cells dying