How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

Because the economics of having large oxygen tanks aboard airliners simply doesn’t work out (not to mention that the air quality inside the plane would rapidly become unpleasant if fresh air wasn’t constantly supplied, regardless of the oxygen levels), commercial airplanes have a very clever system installed to solve the problem of ultra-low pressure atmosphere… Read more How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

Oxygen – Haemoglobin Dissociation Curve – Physiology

Oxygen – Haemoglobin Dissociation Curve – Physiology

Hello, in this video, we’re going to focus on lung physiology, focusing on gases and pH. And we’ll also look at the oxygen dissociation curve. So air enters the respiratory system in the upper airways, proceeds to the conducting airways and then onto the respiratory airways made up of the branches of the bronchi, bronchial,… Read more Oxygen – Haemoglobin Dissociation Curve – Physiology

Cellular Respiration: Glycolysis, Krebs Cycle & the Electron Transport Chain

Cellular Respiration: Glycolysis, Krebs Cycle & the Electron Transport Chain

How long can you hold your breath? Most people can only manage between 30 and 45 seconds before they need to start breathing again. Just 3 to 4 minutes without oxygen is often enough to cause brain damage or death. Fun fact: before I started BOGObiology, I worked as a medic for a number of… Read more Cellular Respiration: Glycolysis, Krebs Cycle & the Electron Transport Chain

How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

Hello, I’m Daven Hiskey, you’re watching the TodayIFoundOut YouTube channel. In the video today, we’re looking at how commercial airplanes keep a steady supply of fresh air and how the emergency oxygen masks supply oxygen given they are not hooked up to any air tank. Let’s get started. Because the economics of having large oxygen… Read more How Airplane Oxygen Masks Work Given They Aren’t Hooked to Tanks & How Planes Get Oxygen at Altitude

Oxygen Dissociation Curves and Transport of Oxygen and Carbon Dioxide

Oxygen Dissociation Curves and Transport of Oxygen and Carbon Dioxide

welcome again before we can look at how oxygen is transported in the blood it is most useful to understand the structure of the hemoglobin molecule you’ll recall that hemoglobin is described as having a quaternary structure and that it contains heme groups I would like you to try to put together your own model… Read more Oxygen Dissociation Curves and Transport of Oxygen and Carbon Dioxide

Passive Transport: Simple Diffusion

Passive Transport: Simple Diffusion

Welcome to Passive Transport – Simple Diffusion. Passive transport is the movement of molecules across cell membranes without using any energy. When cells use simple diffusion, molecules naturally move from an area of high concentration, to one of low concentration through a permeable membrane. The difference between the two sides is called the concentration gradient.… Read more Passive Transport: Simple Diffusion