CELL PARTS

ORGANELLES FOUND IN BOTH PLANTS AND ANIMALS

CELL NUCLEUS

LOCATIONIn the Center of the Cell surrounded by cytoplasm

Nucleus

STRUCTURE Membrane is

Nuclear Envelope, Contains

nucleoplasm Nucleolus DNA (genetic

material)

FUNCTION Houses and

protects the cells genetic information DNA

Site where DNA is transcribed into RNA

NUCLEUS

Nuclear Envelope

STRUCTURE Double membrane

made of two phospholipid bilayers

Contain Nuclear Pores-passageway for RNA and other materials to enter and leave the nucleus

FUNCTION Separates inside of

nucleus from cytoplasm

Controls what enters and leaves the nucleus

Protects the genetic material - DNA

CHROMATIN “BLUEPRINT OF THE CELL”

STRUCTURE

Thin uncoiled strands of DNA and Protein

(LOOKS LIKE Spaghetti)

This is the form that DNA spends most of its life.

FUNCTION

Structures that carry the genetic information.

In this form transcription can be performed (making a copy of mRNA)

CHROMOSOMES “BLUEPRINT OF THE CELL”

STRUCTURE

Condensed form of DNA and Proteins

Looks like an X (BOW-TIE PASTA)

Form Chromatin (DNA) takes right before cell division

FUNCTION

Structures that carry the genetic information.

(Instructions for cells activities)

It is condensed so DNA is easier to separate during cell division

NUCLEOLUS

STRUCTURE

Dense area within the nucleus

Made of protein and rDNA

FUNCTION

Creates Ribosomal RNA

Makes up Ribosomes (sent to Cytoplasm)

NUCLEOPLASM

STRUCTURE

Cytoplasm within nucleus, surrounds chromatin and nucleolus

Jelly-like material

FUNCTION

Contains enzymes and nucleotides for DNA replication and rRNA(ribosomal RNA) synthesis

Nucleus

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Flashcard Homework

Make flashcards forthe structure andfunction of all the parts of the nucleus

Turn in a minimum of 12 flashcards

1. Nucleus2. Nuclear envelope3. Chromatin4. Chromosomes5. Nucleolus6. Nucleoplasm