Cell starts dividing from which
of the following part of the coll?
Nucleus
centrosome
Chromatins
None of these
Answers
Answer:
(i) Nucleus
The nucleus is a double wall membrane structure. It regulates the cellular activities . It constitutes the following parts-
Nuclear membrane : It is a double membrane separating the contents of the nucleus from the cytoplasm. The narrow space between the two membranes is called the perinuclear space. Nuclear membrane has tiny holes called nuclear pores. These holes allow specific substances to be transferred into a nucleus and out from it.
Nucleoplasm/Nuclear matrix : It is a homogenous granular fluid present inside the nucleus. It contains the nucleolus and chromatin. The nucleolus is a spherical structure that is not bound by any membrane. It is rich in protein and RNA molecules and is the site of ribosome formation. Chromatin is an entangled mass of thread-like structures. It contains DNA and some basic proteins called as histones.
answer for it is nucleus