Question

Pick the correct matching set. There could be multiple matches

(A) Nucleus	(i) Synthesis and protein packaging
(B) Nucleolus	(ii) Nuclear pores
(C) Smooth endoplasmic reticulum	(iii) Seat of ribosomes formation
(D) Rough Endoplasmic reticulum	(iv) Endomembrane system with Golgi and nucleus
	(v) Fat storage
	(vi) Director of the cell
	(vii) Detoxification of drugs
	(viii) Storage house of RNA
	(ix) storage of calcium
	(x) Studded ribosomes
	(xi) Karyotheca
	(xii) Without defined membrane

• A. A- i, iv, x; B- iii, viii, xii; C- v, vii, ix; D- ii, vi, xi
• B. A- ii, iv, xi; B- iii, viii, xii; C- v, vii, ix; D- i, iv, x
• C. A- i, iv, x; B- ii, iv, xi; C- v, vii, ix; D- iii, viii, xii
• D. A- v, vii, ix; B- iii, viii, xii; C- ii, vi, xi; D- i, iv, x

Answer 1

The correct option is B A- ii, iv, xi; B- iii, viii, xii; C- v, vii, ix; D- i, iv, x

The nuclear envelope is made up of two membranes separated by 10 to 70 nm perinuclear space. The outer membrane may have ribosomes and interconnections with ER and Golgi complex. Nuclear membrane has large number of pores with diameter of 200 to 800 angstrom.
Nucleolus is naked roughly rounded darkly stained structure that is attached to chromatin at specific spot called as Nucleolar Organizing Region (NOR). Nucleolus contains of four parts amorphous fibrillar, granular and chromatin. Both fibrillar and granular parts are formed of RNA and proteins. Nucleolus is the site of formation of r RNA and synthesis of ribosomes.
The endomembrane system of a eukaryotic cell consists of endoplasmic reticulum, golgi apparatus, lysosomes and plasma membrane.
Endoplasmic reticulum without ribosomes studded on their surface are called as smooth endoplasmic reticulum (SER). SER are involved in lipid synthesis and storage, detoxification, calcium storage, hormone synthesis and several other responses.
Endoplasmic reticulum membranes having ribosomes on surface are called as rough endoplasmic reticulum (RER). The RER are involved in protein synthesis.

Therefore, the correct answer is option B.