A person suffering from anemia feels tired in short walk, Why?​

Hemoglobin is an iron-rich protein that helps red blood cells carry oxygen from the lungs to the rest of the body. If you have anemia, your body does not get enough oxygen-rich blood. This can cause you to feel tired or weak. You may also have shortness of breath, dizziness, headaches, or an irregular heartbeat.

Explanation:

When you have anemia, your body doesn't produce enough red blood cells. You don't get enough oxygen, which makes you feel fatigued and can also cause serious health complications.

Explanation:

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

a physical change is being made.