CBSE Class 10 Answered
why does the blood not clot inside uninjured vessels & it contains iron but it does not rust ! why ? please answer them asap as my activation period will be finishes tomorrow .
Asked by paritosh mahajan | 07 Jun, 2013, 11:06: AM
Expert Answer
Blood contains haemoglobin which contains iron. Oxygen binds with haemoglobin to form oxy-haemoglobin. In formation of oxy-haemoglobin, oxygen does not combine with two positive
valences of the ferrous iron in the hemoglobin molecule. Instead, it binds loosely with one of the six "coordination" valences of the iron atom. This is an extremely loose bond
so that combination is reversible. Furthermore, the oxygen does not become ionic oxygen but is carried as molecular oxygen to the tissue where it is released into the tissue fluids in the form of dissolved molecular oxygen rather than ionic oxygen. This explains why blood does not rust despite having the all necessary substrates for the formation of the rust.
valences of the ferrous iron in the hemoglobin molecule. Instead, it binds loosely with one of the six "coordination" valences of the iron atom. This is an extremely loose bond
so that combination is reversible. Furthermore, the oxygen does not become ionic oxygen but is carried as molecular oxygen to the tissue where it is released into the tissue fluids in the form of dissolved molecular oxygen rather than ionic oxygen. This explains why blood does not rust despite having the all necessary substrates for the formation of the rust.
Answered by | 14 Jun, 2013, 10:36: AM
Application Videos
-
Absorption in small intestine
This video explains why absorption of food occurs in the small intestine. -
Opening and closing of stomata
This video explains how guard cells regulate the opening and closing of sto... -
Exchange of gases in Amoeba
This video details the process of exchange of gases in Amoeba. -
Exchange of gases in fishes
This video details the process of exchange of gases in fishes. -
Arteries and Veins
This video explains the difference between arteries and veins.
Concept Videos
-
Respiration in Organisms
Learn the mechanism of breathing and various organs of respiratory system.... -
Transport in Organisms
Explain the need for transportation system. Function of the vascular tissu... -
Blood
This video explains the components of blood, blood vessels and the concept ... -
Autotrophic Nutrition - Part 1
This video explains the types of nutrition, photosynthesis in plants and th... -
Respiration in Organisms
Learn the mechanism of breathing and various organs of respiratory system....
CBSE 10 - Biology
Asked by kunchalasrinivasaraosrinivasar | 23 Apr, 2024, 07:40: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by bgmigaurav7318 | 08 Apr, 2024, 01:46: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by jayeshsah1995 | 04 Mar, 2024, 12:01: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by nsubhashree54 | 24 Feb, 2024, 11:08: AM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by sarmabankupalli9 | 02 Jan, 2024, 08:19: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by pavanimullu123 | 26 Dec, 2023, 07:17: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by jitendranathsingh331 | 26 Nov, 2023, 06:17: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by waccstudies123 | 08 Oct, 2023, 02:10: AM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by 09.10bjanvhijadhav | 16 Sep, 2023, 11:58: PM
ANSWERED BY EXPERTCBSE 10 - Biology
Asked by devy64469 | 03 Sep, 2023, 09:25: PM
ANSWERED BY EXPERT
