the respiratory system Flashcards
what is the respiratory system
The respiratory system is a system of organs that work together for 2 main functions:
1. To get oxygen from the air into the blood
2. To get carbon dioxide from the blood out into the air
what are the two main functions of the respiratory system
- To get oxygen from the air into the blood
- To get carbon dioxide from the blood out into the air
why is oxygen required in cellular respiration
Oxygen is required by the body for cellular respiration the process in which it reacts with glucose to release energy to keep your cells alive
what do all cells need?
All cells need a constant supply of oxygen
what is the product of cellular respiration
Carbon dioxide (CO2)
Why do we get rid of carbon dioxide?
The body needs to get ride of carbon dioxide as it becomes toxic is allowed to build
what is the ‘formula’ for cellular respiration
oxygen + glucose ——–> water + carbon dioxide
oxygen
it is absorbed into the blood, from the air, by the respiratory system
glucose
it is absorbed into the blood from food in the digestive system
what does the arrow mean in the formular for cellular respiration
energy released for living
water
released to the environment mostly by the excretory system (wee/sweat)
carbon dioxide
removed from the blood and released into the air by the respiratory system
the mouth
the nose
the pharynx