Haemoglobin is a transport protein that carries oxygen from the lungs to the tissues and carries carbon dioxide from the tissues back to the lungs in order to function most efficiently, haemoglobin needs to bind to oxygen tightly when the oxygen concentration is high in the lungs and be able to release oxygen rapidly in the relatively low partial pressure in the tissues. Ocr biology - quick and detailed video explaining collagen and haemoglobin all videos made by jack goswell for the ttc biology page add my private facebook. Haemoglobin is a transport protein that carries oxygen from the lungs to the tissues and carries carbon dioxide from the tissues back to the lungs. Gcse biology (science) revision covering globular and fibrous proteins topics include haemoglobin, amino acids, collagen, the primary structure of collagen, the secondary/tertiary structure of collagen, the quaternary structure of collagen. Haemoglobin vs collagen haemoglobin is a globular protein with an iron-containing haem group that bonds to oxygen, carrying it around the body.
Start studying comparing collagen and haemoglobin learn vocabulary, terms, and more with flashcards, games, and other study tools. Globular protein vs fibrous proteins proteins are the chemical nutrients that are required for building various tissues of the body as well as needed for repair of worn out cells. Collagen a globular protein located within red blood cells its role is too transport oxygen around the body of animals differences collagen has a repeating sequence of amino acids in polypeptide chains, whereas haemoglobin has no repeating sequence.
Some of the best examples of fibrous proteins are collagen, desmin, elastin, and f-actin globular proteins vs fibrous proteins globular proteins are soluble in water, acids, and bases, whereas fibrous proteins remain insoluble in water and other compounds mentioned above. Collagen is a long (300 nm) rod-like protein consisting of three polypeptide chains wound together in a triple helix many such molecules are cross-linked in long fibres in the extracellular matrix these collagen fibres are very strong and can not be extended, giving strength and resistance to the extracellular matrix. Most biological tissues are built with polymeric fibres two of the most abundant fibres found in nature are cellulose and collagen cellulose is predominately found in plants, but is also produced by bacteria, for instance. Introduction myoglobin and hemoglobin are globular proteins that serve to bind and deliver oxygen these globins dramatically improve the concentration of molecular oxygen that can be dissolved in the biological fluids of vertebrates and some invertebrates. Collagen very abundant fibrous protein constitutes ¼ of all protein in body found in skin, bone, tendon, cartilage, blood vessels and nearly all organs where it serves to form a matrix (insoluble) for holding and supporting cells.
Haemoglobin is a conveyance protein that carries o from the lungs to the tissues and carries c dioxide from the tissues back to the lungs in order to work most expeditiously hemoglobin needs to adhere to oxygen tightly when the o concentration is high in the lungs and be able to let go of o [. Ocr as level biology, protein structure and the structures of haemoglobin and collagen-- created using powtoon -- free sign up at . Haemoglobin has a prosthetic haem group that contains iron to bond with oxygen, collagen has no prosthetic groups haemoglobin is a globular protein with hydrophobic groups turned towards the inside of the molecule and hydrophilic groups turned towards the inside, collagen is a fibrous protein.
See all biology resources » related discussions on the student room ocr biology f212 revision [3rd june 2013] (now closed) » ocr biology as f211/f212 exams thursday 21st may &. Collagen fibers supports most tissues and gives cells structure from the outside, but collagen is also found inside some cells collagen has great tensile strength, and is the main component of fascia, cartilage, ligaments, tendons, bone and teeth. Haemoglobin and collagen haemoglobin is a water soluble globular protein which is composed of two α polypeptide chains, two β polypeptide chains and an inorganic prosthetic haem group its function is to carry oxygen around in the blood, and it is facilitated in doing so by the presence of the haem group which contains a fe 2+ ion, onto which. Collagen is a long fibrous structural protein a molecule of collagen contains three of the helical subunits coiled around each other in what is known as a coiled-coil hemoglobin on the other. Collagen is converted to gelatin by boiling it in water the tropocollagen or collagen molecule subunit is a rod about 300 nm long and 15 nm in diameter, made up of three polypeptide strands, each of which is a left-handed helix, not to be confused with the commonly occurring alpha helix, which is right-handed.
Collagen, type i, alpha 1, also known as alpha-1 type i collagen, is a protein that in humans is encoded by the col1a1 gene col1a1 encodes the major component of type i collagen , the fibrillar collagen found in most connective tissues , including cartilage. Haemoglobin is a globular protein meaning its 3d feature is to roll up into balls, yet collagen is a fibrous protein so its 3d feature is to form fibres haemoglobin molecules to not bond with each other.
Hemoglobin (hb), a chromo-protein, is found exclusively in erythrocytes & is red coloring pigment of blood hb is a is a globular protein and is most abundant heme-protein in humans. Haemoglobin is a quaternary protein structure and is bonded to a molecule of haem 3 collagen protein molecules twist around each other to form a tropocollagen molecule these molecules align in a staggered pattern with cross links between them to provide strength to the structure.
Collagen is a protein made up of amino-acids, which are in turn built of carbon, oxygen and hydrogen collagen contains specific amino acids - glycine, proline, hydroxyproline and arginine. Collagen vs haemoglobin haemoglobin has a prosthetic group - each chain contains a haem group (fe2+) but collagen has no prosthetic group hemoglobin is made of a wide range of amino acid constituents in its primary structure whereas approx 35% of collagen's primary structure is just one type of amino acid - glycine.