Biology, asked by Sneha23533, 7 months ago

What are the properties of Blood?

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Answers

Answered by Anonymous
12

Answer:

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells

Blood performs many important functions within the body, including:

Supply of oxygen to tissues (bound to hemoglobin, which is carried in red cells)

Supply of nutrients such as glucose, amino acids, and fatty acids (dissolved in the blood or bound to plasma proteins (e.g., blood lipids))

Removal of waste such as carbon dioxide, urea, and lactic acid

Immunological functions, including circulation of white blood cells, and detection of foreign material by antibodies

Coagulation, the response to a broken blood vessel, the conversion of blood from a liquid to a semisolid gel to stop bleeding

Messenger functions, including the transport of hormones and the signaling of tissue damage

Regulation of core body temperature

Hydraulic functions

In vertebrates, it is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves. Albumin is the main protein in plasma, and it functions to regulate the colloidal osmotic pressure of blood. The blood cells are mainly red blood cells (also called RBCs or erythrocytes), white blood cells (also called WBCs or leukocytes) and platelets (also called thrombocytes). The most abundant cells in vertebrate blood are red blood cells. These contain hemoglobin, an iron-containing protein, which facilitates oxygen transport by reversibly binding to this respiratory gas and greatly increasing its solubility in blood. In contrast, carbon dioxide is mostly transported extracellularly as bicarbonate ion transported in plasma.

Vertebrate blood is bright red when its hemoglobin is oxygenated and dark red when it is deoxygenated. Some animals, such as crustaceans and mollusks, use hemocyanin to carry oxygen, instead of hemoglobin. Insects and some mollusks use a fluid called hemolymph instead of blood, the difference being that hemolymph is not contained in a closed circulatory system. In most insects, this "blood" does not contain oxygen-carrying molecules such as hemoglobin because their bodies are small enough for their tracheal system to suffice for supplying oxygen.

Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Arthropods, using hemolymph, have hemocytes as part of their immune system.

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Answered by dipesh8051
4

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The properties of blood are the following:

  • Never stationary: Blood is always in motion from the heart to the arteries and back through the veins.
  • Colour: The blood is a somewhat thick fluid, bright red when taken from an artery or dark red when taken from a vein.
  • Volume: An average adult human has 5 to 6 litres of blood by volume in his body.
  • Taste- Saltish: Perhaps we have all have "tasted" our blood in case when there is a cut in the tongue or bleeding from the gums.

Hope it helps....

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