Question

what gives Red colour to human blood​

Answer 1

Answer:

haemoglobin is the substance that gives red colour to our blood

Answer 2

• Hemoglobin, also known as hemoglobin, is an iron-containing oxygen-transport metalloprotein found in virtually all vertebrates' red blood cells (erythrocytes) and certain invertebrates' organs.
• Hemoglobin transports oxygen from the lungs or gills to the rest of the body through the bloodstream (i.e. the tissues).
• It then releases oxygen, allowing aerobic respiration to supply energy to the organism's tasks through the metabolic process.
• Every 100 mL of blood in a healthy person has 12 to 20 grams of hemoglobin.