CELL S

TRUCTU

RE: NUCLE

US,

NUCLEAR EN

VELOPE,

AND THE

NUCLEOLU

S

B Y : ES T E B A N G

A R C I A

THE NUCLEUS

FUNCTIO

N: THE N

UCLEUS

- The nucleus is the control center of cells, it is like our brain because it makes sure any processes that must happen in the cell happen (reproduction, movement, eating, etc.) , the same way our brain tell our body what to do in order for us to survive.

Regulat

ion of

Cell Acti

vity:

the nucle

us can

be des

cribed

as th

e “brai

n” of a

cell

FUNCTIO

N: THE N

UCLEUS

- The nucleus stores most of the genetic information of a cell.

- The cell nucleus also contains the cell’s DNA.DNA STO

RAGE: Anoth

er im

portant f

unction

of the

nucleus i

s that

it sto

res here

ditary

informati

on.

STRUCTU

RE: CELL

NUCLEUS - The main parts of a

cell’s nucleus are the nuclear envelope and the nucleolus, but it also has pores, nucleoplasm, and chromosomes.

The c

ell nucle

us is c

omposed

of man

y

different p

arts.

THE NUCLEUS

THE NUCLEAR ENVELO

PE

FUNCTIO

N: THE NUCLEA

R

ENVELO

PE- The main function of the

nuclear envelope is to keep the nucleus separated from the rest of the cell

- Another important function is that it allows materials to flow in and out of it’s pores and therefore out of the nucleus

The n

uclear

enve

lope i

s the p

art of

the

nucleus t

hat su

rrounds t

he nucle

us, hen

ce

the nam

e “nucle

ar en

velop

e”

STRUCTU

RE: THE N

UCLEAR

ENVELO

PE- The nuclear envelope is

made up of a phospholipid bilayer

- The nuclear envelope also has pores which allow the nucleus to communicate with the other organelles within a cell, by allowing certain molecules in and out of the nucleus.

The n

uclear

enve

lope i

s mad

e up of

a phos

pholipid bila

yer

THE NUCLEAR ENVELOPE

THE NUCLEOLUS

FUNCTIO

N: NUCLEO

LUS

- The main function of the nucleolus is to put together the subunits of ribosomes.

The n

ucleolu

s is p

art of

the c

ell’s

nucleus,

and it

is

basica

lly th

e “brai

n” of a

nucleus.

STRUCTU

RE: THE

NUCLEOLUS The three main

components of the nucleolus are:

- fibrillar centers (FC)- dense fibrillar centers

(DFC)- granular components

(GC)

The n

ucleolus i

s mad

e up of t

hree m

ain

compon

ents

THE NUCLEOLUS

NUCLEUS, NUCLEAR ENVELOPE, AND THE NUCLEOLUS

BIBLIOGRAPHYhttp://www.google.com/imgres?q=nucleus&num=10&hl=en&biw=1440&bih=698&tbm=isch&tbnid=5xoVi-

LAGTYIZM:&imgrefurl=http://library.thinkquest.org/06aug/01942/plcells/nuclues.htm&docid=KIzcWGU5jVcduM&imgurl=http://library.thinkquest.org/06aug/01942/plcells/thinkquest/nucleus.jpg&w=432&h=288&ei=cW5TULH3Nory0gHOj4GwAQ&zoom=1&iact=hc&vpx=180&vpy=351&dur=2698&hovh=183&hovw=275&tx=168&ty=84&sig=114853855940135694376&page=1&tbnh=144&tbnw=198&start=0&ndsp=18&ved=1t:429,r:6,s:0,i:160

http://www.google.com/imgres?q=brain+clip+art&hl=en&biw=1440&bih=698&tbm=isch&tbnid=tplVxcpAzvLm7M:&imgrefurl=http://classroomclipart.com/clipart-view/Clipart/Symbols/brain-06_jpg.htm&docid=W-OlwEtsOseOiM&imgurl=http://classroomclipart.com/images/gallery/Clipart/Symbols/brain-06.jpg&w=257&h=300&ei=3W5TUO_cG-bo0QGyo4CQAw&zoom=1&iact=hc&vpx=381&vpy=142&dur=671&hovh=240&hovw=205&tx=112&ty=150&sig=114853855940135694376&page=2&tbnh=154&tbnw=132&start=22&ndsp=28&ved=1t:429,r:22,s:22,i:278

http://www.buzzle.com/articles/cell-nucleus-structure-and-functions.html

http://www.google.com/imgres?q=nuclear+envelope+function&um=1&hl=en&sa=N&biw=1440&bih=698&tbm=isch&tbnid=u7dxBhd7c6-vZM:&imgrefurl=http://micro.magnet.fsu.edu/cells/nucleus/nuclearenvelope.html&docid=MSyEJAzAhug-IM&imgurl=http://micro.magnet.fsu.edu/cells/nucleus/images/nuclearenvelopefigure1.jpg&w=279&h=220&ei=mXdTUJyLDafg0gHUl4CwCA&zoom=1&iact=rc&dur=390&sig=114853855940135694376&page=1&tbnh=143&tbnw=181&start=0&ndsp=18&ved=1t:429,r:3,s:0,i:84&tx=86&ty=66