Material Transport

Question 1

Describe how materials are exchanged at tissues. Include key words: capillaries, diffusion, pressure, lymph, glucose, oxygen, amino acids, urea, water and carbon dioxide.

Answer 1

At tissues, materials are exchanged through the capillaries by allowing diffusion of oxygen and glucose from the blood into the tissues, while carbon dioxide and urea diffuse from the tissues into the blood. Water shifts based on pressure gradients, with excess fluid entering the lymphatic system as lymph. Amino acids also diffuse into tissues for protein synthesis.

Question 2

Blood vs Lymph

Answer 2

-Both are two circulatory fluids of the body
- Blood moves via blood vessels, and lymph moves via lymphatic vessels
- Blood transports gases, nutrients, and metabolic wastes. Lymph is draining of tissue fluid into the circulatory system.