What is the main site of selective reabsorption?

Define selective reabsorption.

These questions consist of two statements each,printed as Assertion and Reason.While answering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:Proximal convoluted tubule is lined by brush-bordered cuboidal epitheliium. Reason:PCT is main site of selective reabsorption of useful materials from nephric filtrate.

Fill in the blanks: ...... is the area of maximum selective reabsorption.

Discuss role of aldosterone and antidiuretic hormone in regulation of selective reabsorption

What is target site?

What is the main constituent of LPG ?

What is the main site of synthesis of ribosomal RNA?

Comment upon the hormonal regulation of selective reabsorption.