JAMB Biology 2012 Objective — Question 3

Question 3 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2012 Objective paper, with the correct answer and a full explanation.

(Using the same diagram as Q2) The part labeled IV is the

A. mitochondrionCorrect
B. cell wall
C. endoplasmic reticulum
D. nucleus

Explanation

The part labeled 'IV' is endoplasmic reticulum. It is worthy of notice that the endoplasmic reticulum occurs in two forms — if it has ribosomes attached to its surface, it is a Rough Endoplasmic Reticulum, if it doesn't, it is a Smooth Endoplasmic Reticulum.

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