Big Idea 21: All living things are made up of cells

What is every living thing made up of?

• Organs

• Skin

• Cells

Approximately how many cells make up a human being?

• 10 billion

• 10 trillion

• 1 million

What do cells with the same job create?

• Tissues

• Molecules

• Organs

What is the smallest unit of life?

• Cell

• Organ

• Organism

Why is anything smaller than a cell not considered alive?

• It does not have the characteristics needed for life

• It cannot move

• It cannot grow

What are cells made up of?

• Tissues

• Molecules

• Organs

What is the role of molecules in living things?

• They make up all living things

• They provide energy

• They protect cells

What helps cells perform their specific jobs?

• Their size and shape

• Their ability to divide

• Their energy source

What do cells work together to maintain in organisms?

• Growth and reproduction

• Health and survival

• Energy and movement

What is an example of a part of the body created by cells with the same job?

• The circulator System

• Skin

• The Digestive System