Biology 101
When you think of biology class, what comes to mind first? Is it the iconic line, "Mitochondria is the powerhouse of the cell," or Charles Darwin and his theory of evolution? Whatever it is, there are likely plenty of interesting topics and lessons that have stuck with you. But if you need a quick refresher, here are five things everyone learns in biology class.
1. Mitochondria Is the Powerhouse of the Cell
No biology class is complete without learning about cell theory and how all living organisms are lumps of cells grouped together. Another line you'll definitely remember from biology class? Mitochondria is the powerhouse of the cell. (If you forget why, it's because the main function of these organelles is to generate energy for the cell.)
National Cancer Institute on Unsplash
2. DNA Is Your Genetic Blueprint
It might be dizzying to wrap your head around, but you're made up of double-helix structures that make you, you. DNA (or deoxyribonucleic acid) carries the instructions that determine everything from your hair color to your eye shape.
Sangharsh Lohakare on Unsplash
3. Photosynthesis
Plants aren't the only living organisms that need photosynthesis—converting sunlight to energy—to survive and grow. While humans aren't capable of performing this process, we do heavily rely on it. After all, oxygen is released from plants after photosynthesis, which we use to breathe and survive.
4. Evolution & Natural Selection
Remember Charles Darwin and survival of the fittest? Another important topic covered in biology class is evolution and natural selection, which shows how our species has adapted over time to the ever-changing environments around us.
5. The Organs That Keep Us Alive
The heart and the brain might be the two main organs that keep us alive, but in truth, everything from your lungs to your liver is important for survival. Without these key organs, our body wouldn't be able to run smoothly and function properly.
