Tag: biology

The Digestive System: CrashCourse Biology #28

Oh hi! I hope you don’t mind that I’m eating. This is actually just my first course. For my birthday, the writers wrote me a script where I just get to eat! The whole time! And I can’t think of a better way to demonstrate the workings of the digestive system, the series of hollow…


ATP & Respiration: Crash Course Biology #7

Oh, hello there. I’m at the gym. I don’t know why you’re here, but I’m going to do some pushups, so you can join me on the floor if you want. Now, I’m not doing this to show off or anything. I’m actually doing this for science. [pained grunt] You see what happened there? My…


6 ways mushrooms can save the world | Paul Stamets

I love a challenge, and saving the Earth is probably a good one. We all know the Earth is in trouble. We have now entered in the 6X, the sixth major extinction on this planet. I often wondered, if there was a United Organization of Organisms — otherwise known as “Uh-Oh” — (Laughter) — and…


Biological Molecules – You Are What You Eat: Crash Course Biology #3

Hello, and welcome to the kitchen. I wanted to invite you here today because last week we started off in my bathroom and kinda feel bad about that. And also because as I’m making lunch today I wanted to sort of use it as a lab. During this time in my kitchen I’m going to…


Why is Nutrition Science so Complicated?

Consider the following sequence of events: -In 1945, an 82 day long battle between US Marine and Army forces and the Imperial Japanese Army was fought in the prefecture of Okinawa. This battle was considered one of the bloodiest in the pacific and resulted in the death of almost 150,000 Okinawans, roughly a third of…


Plant Cells: Crash Course Biology #6

Plants are freaking great because they have this magical wizard power that allows them to take carbon dioxide out of the air and convert it into wonderful, fresh, pure, oxygen for us to breathe. They’re also way cooler than us because, unlike us and every other animal on the planet, they don’t require all kinds…


All About Nutrition and Food Science

[ Music ]>>So the HNFS Department, Human Nutritional and Food Science Department, is really broken into two main categories. You have FST, which is Food Science Technology, and then you have Nutritional Science.>>So Food Science is a major which is processing, packaging, sensory, all the things you do in between when you harvest the food…


Energy Considerations in Nutrition: BMR, RMR & Physical Activity – Nutrition | Lecturio

In this lecture we will be reviewing some of the energy considerations relative to nutrition that you need to have right in your pocket for your medical licensing exams. These things include basal metabolic rate as well as body mass index, total energy expenditure, as well the fuel caloric values and so forth. So moving…


Structure of the Leaf | Plant Biology | The Fuse School

So we know that plants make their own food through photosynthesis. But how does a plant ;0 get together the ingredients it needs for this: sunlight, carbon dioxide and water,:) and then combine them to create glucose and oxygen? Well, that’s what leaves are for! ;[ The leaf is a plant’s food factory—and its parts…


How your digestive system works – Emma Bryce

Across the whole planet, humans eat on average between one and 2.7 kilograms of food a day. That’s over 365 kilograms a year per person, and more than 28,800 kilograms over the course of a lifetime. And every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters, and…