Question

What makes the nuclear envelope different from the cell membrane?

What makes the nuclear envelope different from the cell membrane?

Homework Answers

Answer #1

Nuclear envelope is made up of 2 parallel membranes with a space called perinuclear between them.outer membrane of nucleus is continuous with endoplasmic reticulam and sometimes bears ribosome on it.

Nuclear envelope is interrupted by number of small pores formed by fusion of 2 membranes.through which RNA and proteins move.so it is not a continuous envelope it is disrupted at these places.

Cell membrane is made up of lipids that is arranged bilayer with proteins in between them.in cell membrane there is no pore like that on nuclear envelope.

So the main difference between nuclear envelope and cell membrane is that nuclear envelope is not a continuous one but cell membrane is a continuous one.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The nuclear envelope functions as a A)The nuclear envelope functions as a means of sequestering many...
The nuclear envelope functions as a A)The nuclear envelope functions as a means of sequestering many of the mRNA processing activities from the cytosol. B) means of localization of the chromosomes within the cell. C) selective barrier that separates nuclear and cytoplasmic constituents, localizes chromosomes within the cell, and sequesters many of the mRNA processing activities from the cytosol. D) means of separating nuclear and cytoplasmic constituents. selective barrier, allowing certain substances in or out.
You purified fragments of nuclear envelope from human fibroblasts by biochemical fractionation. You first decide to...
You purified fragments of nuclear envelope from human fibroblasts by biochemical fractionation. You first decide to use electron microscopy to test for the presence of the nuclear lamina on these envelope fragments. Which of the following structures would suggest the presence of the nuclear lamina? An organized meshwork of ~ 10 nm fibers Large pores that span through both nuclear membranes Two phospholipids bilayers "Little bumps", presumably membrane proteins, at the surface of the inner membrane ~300 and ~700 nm...
What is the difference between a virus membrane and a virus envelope protein?
What is the difference between a virus membrane and a virus envelope protein?
During cell division in apical meristem, the nuclear membrane appears in (a) telophase (b) cytokinesis (c)...
During cell division in apical meristem, the nuclear membrane appears in (a) telophase (b) cytokinesis (c) metaphase (d) anaphase.
In many organisms, the nuclear envelope breaks down during mitosis. As part of this breakdown, the...
In many organisms, the nuclear envelope breaks down during mitosis. As part of this breakdown, the nuclear lamina that underlies the nuclear envelope breaks down. In fact, many investigators think that the breakdown of the lamina initiates envelope breakdown. Propose a reversible mechanism for controlling the polymerization state of the proteins that make up the nuclear lamina.
select the statement below which is inaccurate of the envelope of viruses. a- envelope is composed...
select the statement below which is inaccurate of the envelope of viruses. a- envelope is composed of host membranes, b- envelope is acquired through budding/exocytosis c- envelope contains cell membrane receptors for adsorption d- envelope is a disguise against host defense. e- envelope contains spikes for adsorption
The most significant difference between archaea and bacteria is the: lack of a nuclear envelope in...
The most significant difference between archaea and bacteria is the: lack of a nuclear envelope in archaea. absence of the 70S ribosomes in bacteria. presence of a single filament flagellum in bacteria. absence of peptidoglycans in the cell walls of archaea. presence of fatty acids in the plasma membranes of archaea.
How large is a nuclear pore in the nuclear envelope? smaller than a protein larger than...
How large is a nuclear pore in the nuclear envelope? smaller than a protein larger than a ribosome smaller than a ribosome larger than the Golgi apparatus larger than the endoplasmic reticulum
which is the phase in which the nuclear envelope is fully intact? A.metaphase B.prophase C.prometaphase D.anaphase
which is the phase in which the nuclear envelope is fully intact? A.metaphase B.prophase C.prometaphase D.anaphase
The lipid bilayer that makes up a cell membrane is composed of molecules like phospholipids that...
The lipid bilayer that makes up a cell membrane is composed of molecules like phospholipids that are synthesized from fatty acids. A phospholipid membrane undergoes a phase transition from solid-like to fluid-like when the temperature is raised above a melting temperature. What can cause the melting temperature of a membrane to increase making it more solid-like at higher temperatures? Select all that apply. A. increasing the fraction of cis unsaturated fatty acids that make up the phospholipids B. increasing cholesterol...