BillNyeCellsQuiz

What are all living things, including plants and animals, made of?

• Tissues

• Cells

• Organs

• Molecules

What is one job of red blood cells?

• To carry oxygen

• To make bones

• To digest food

• To protect the skin

What part of the cell is responsible for controlling its functions?

• Mitochondria

• Nucleus

• Cytoplasm

• Cell membrane

How many cells do humans have approximately?

• 1 million

• 100 trillion

• 10,000

• 1 billion

What is the main difference between cells and bricks?

• Cells are bigger than bricks

• Cells are alive and can reproduce

• Bricks are made of clay

• Cells cannot be seen