Glucose

Summary: All the cells inside your body need glucose and oxygen for Respiration. Glucose enters the body through the food you eat. It moves by diffusion from an area of higher concentration inside the small intestine to an area of lower concentration in the blood. Oxygen enters the body when it is breathed into your lungs. It moves by diffusion from an area of higher concentration inside the lungs to an area of lower concentration in the blood. These substances are carried around your body in your blood, and then passed on to the cells that need them. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Glucose

All the cells inside your body need glucose and oxygen for Respiration. Glucose enters the body through the food you eat. It moves by diffusion from an area of higher concentration inside the small intestine to an area of lower concentration in the blood. Oxygen enters the body when it is breathed into your lungs. It moves by diffusion from an area of higher concentration inside the lungs to an area of lower concentration in the blood. These substances are carried around your body in your blood, and then passed on to the cells that need them.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Body Systems/2.7 Aerobic respiration.md), Biology section.