Iron - mineral elements, Biology

IRON

It is present in bread, potatoes, green vegetables, especially spinach, lettuce, cocoa, raisins, red meat, liver, kidney, egg yolk etc.

Iron is also available in the body internally through the breakdown of old red blood corpuscles.

It is stored as ferretin in liver, spleen and intestinal mucosa.

Vitamin C (ascorbic acid) is essential for iron absorption.

Due to deficiency of iron anaemia is caused.

Maximum in mitochondria organelle.

Maximum in liver organ.

The important functions of iron are -

(a)      It is a constituent of haemoglobin, myoglobin and cytochromes. Haemoglobin transports oxygen. Myoglobin occurs in muscles and stores oxygen. Cytochromes take part in electron transport system.

(b)         Iron is a component of ferredoxin, nitrogenase, catalase, peroxidase & tyrosinase.

(c)      Iron is activator of enzymes nitrate reductase and aconitase.

(d)      Iron is required for the formation of chlorophyll in plants.

Posted Date: 10/9/2012 2:43:41 AM | Location : United States







Related Discussions:- Iron - mineral elements, Assignment Help, Ask Question on Iron - mineral elements, Get Answer, Expert's Help, Iron - mineral elements Discussions

Write discussion on Iron - mineral elements
Your posts are moderated
Related Questions
M o n o c l o n a l antibodies: Hybridoma technology for production of monoclonal antibodies is one of the most important advancements in the f

How Primarily Energy Deficiency cause PEM? Surveys on preschool children in different parts of the country reveal that PEM is primarily due to dietary energy deficiency arising

In the eukaryotes replication of chromosomal DNA happens only in the S phase of the cell cycle. As for bacterial DNA, eukaryotic DNA is replicated     figure: The euk

Define Recommended Dietary Allowances for Vitamin D? The recommendations of vitamin D are expressed as IU. 1 IU is defined as the activity contained in 0.025 mcg of cholecalci

Injection Route An injection is an unpleasant experience for a person at any age and is particularly traumatic to the small child who often lives in fear to the next "need

Define the Classification of Carbohydrates? If you go back and read up your theory, you will recall that there are four main classes of carbohydrates based on the number of mon

Define the term- brain circuitry underlying addiction By unraveling brain circuitry underlying addiction, scientists have identified new targets for therapies which might quell

Define about the Polyphenols? We now come to a group of compounds, which were until recently considered to adversely influence nutrient absorption or giving colour to foods e.g

What is the nucleolus? The nucleolus is a small and optically dense region in the interior of the cell nucleus. It is made of ribosomic RNA (rRNA) and proteins. Single nucleus

What raw materials require for the manufacture of margarine Soybean and peanut (or groundnut) oils are of great economic importance. Refined soybean oil contains branched fura