Unit 4: Cells, Tissues, Organs, and Systems

Learn about the many different structures that make up plant cells as well as what differentiates plant cells from animal cells.

Learn about the important plant functions of photosynthesis, respiration and transpiration

The human brain has many different parts. Each one plays a different function. But they all work together to manage complex thoughts, feelings and behaviours.

Consuming sugary foods and drinks activates your brain’s reward system - the same system that can cause addiction.

It took several scientists building on each other’s discoveries to come up with Cell Theory - one of the cornerstones of biology.

This brain model helped doctors better explain things to their patients. Learn about this Ingenium artifact and make your own version using 3D printing!

Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.

Mitosis is an important part of cell division that helps organisms grow and repair themselves.

Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.

Learn how test foods for starch.

Why does drinking too much alcohol make people feel so bad? Read about four theories.