Plants eat sunlight and air to make life. But the key enzyme behind it all, called RuBisCO, isn’t actually all that great at its job. Let’s talk about how photosynthesis really works, why oxygen isn’t coming from where you think, and...

You know ‘em, you love ‘em. They’re the powerhouse of the cell: mitochondria. They produce the ATP molecules that we use to do everything from talk to our friends to run a marathon. In this episode of Crash Course Biology, we’re taking a...

This video describes the processes of photosynthesis and cellular respiration.

This video explains the concept of cellular respiration and the differences between aerobic and anaerobic respiration. It explains the word and chemical symbol equations for aerobic and anaerobic respiration, as well as the differences...