<h2>The given statement is true</h2>
Explanation:
Iron absorption occurs in the duodenum and upper jejunum of small intestine
- At physiological pH ferrous iron is rapidly oxidized to the insoluble ferric form
- Gastric acid lowers the pH in the duodenum which enhances the solubility and uptake of ferric iron
- Once iron gets inside the enterocyte it can be stored as ferritin;Ferritin is a hollow spherical protein which helps in storage and regulation of iron levels within the body
- Ferritin molecule have ferroxidase activity which helps in the mobility of Fe2+ out of the enterocyte by ferroportin
- Transferrin is the major iron transport protein which transports iron through blood
- Fe3+ binds to transferrin so Fe2+ transported through ferroportin must be oxidized to Fe3+
- Fe2+ needs to be oxidized first so that it can be transported through ferroportin
- Once iron gets inside the cell it can be used for various cellular processes
Ribosomal RNA<span> (</span>rRNA<span>) associates with a set of </span>proteins<span> to form ribosomes. These complex structures, which physically move along an </span>mRNA<span> molecule, catalyze the assembly of amino acids into </span>protein<span> chains. They also bind </span>tRNAs<span> and various accessory molecules necessary for </span>protein<span> synthesis
</span>The Three Roles of RNA in Protein Synthesis - Molecular Cell Biology ...<span>https://www.ncbi.nlm.nih.gov/books/NBK21603/</span>
Answer:
glucose transport in the lung and its role in lliquid movement
It is system because bone nucleus and all the rest you put down are all a system structure in the body
