Skip to main content

WHAT IS EUKARYOTES ??

 EUKARYOTES

DEFINITION;

EUKARYOTES HAVE WELL DEFINED NUCLEUS, IN WHICH NUCLEAR

    MATERIAL (CHROMOSOME OR DNA) IS ENCLOSED IN DOUBLE NUCLEAR

    MEMBRANE. 

ORGANELLES;

EUKARYOTIC CELLS HAVE MEMBRANE BOUND ORGANELLES LIKE 

   MITOCHONDRIA, GOLGI APPARATUS, ENDOPLASMIC RETICULUM ETC.

RIBOSOMES;

THE RIBOSOMES OF EUKARYOTIC CELLS ARE LARGER IN SIZE AS

   COMPARED TO  THE RIBOSOMES OF PROKARYOTIC CELLS.

SIZE OF EUKARYOTIC CELLS;

EUKARYOTIC CELLS ON AVERAGE, TEN TIMES LARGER THAN
 
    PROKARYOTIC CELLS.

CELL WALL;

THE CELL WALL OF EUKARYOTIC CELL IS MADE OF CELLULOSE IN

   (PLANTS) OR CHITIN IN (FUNGI). 

FOR EXAMPLE;

EUKARYOTES INCLUDE ALL  OTHER UNICELLULAR  OR MULTICELLULAR

   ORGANISMS LIKE ANIMALS, PLANTS, FUNGI,PROTISTA.
 
STRUCTURE OF ANIMAL CELL;


what is eukaryotes












Comments

  1. IF MY BLOG PROVIDE YOU TO A LITTLE AMOUNT OF INFO PLEASE SHARE IT WITH
    YOUR FRIENDS AND FOLLOW ME.

    ReplyDelete

Post a Comment

Popular posts from this blog

PROKARYOTIC ORGANISMS

  PROKARYOTES ➤ DEFINITION ; ★ PROKARYOTIC CELLS HAVE NO PROMINENT NUCLEUS  AND MEMBRANE    BOUND ORGANELLES  .  ➤ DERIVED FROM; ★ IT IS DERIVED FROM GREEK WORD PRO MEANS   "BEFORE"   AND KARYON    MEANS "NUCLEUS" . ➤ GENETIC MATERIAL; ★ IN PROKARYOTIC CELLS THE GENETIC MATERIAL (DNA) IS WITHOUT ANY    NUCLEAR MEMBRANE COVERING AND IS DIRECTLY SUBMERGED IN THE   CYTOPLASM. ➤ PROKARYOTES; ★ ORGANISMS POSSESSING PROKARYOTIC CELLS CALLED PROKARYOTES. ➤ DIVISION OF CELLS; ★ IN PROKARYOTES MITOSES IS MISSING AND CELL DIVIDES BY BINARY     FISSION. ➤ RIBOSOMES; ★ PROKARYOTIC CELLS HAVE SMALL SIZED RIBOSOMES "SEDIMENTS AT   70S" . ➤ DISTINCTIVE FEATURE OF PROKARYOTES; ★ PERHAPS THE MOST DISTINCTIVE FEATURE OF THE PROKARYOTIC CELL IS    ITS "CELL WALL"  ,COMPOSED OF POLYSACCHARIDE CHAINS BOUND BY    COVALENTLY TO SHORTER CHAINS OF AMINO ACIDS FORMING  ...

SHORT QUESTIONS RELATED TO ENZYMES

  ENZYMES METABOLISM CO-FACTOR   ACTIVE SITE & SUBSTRATE ACTIVATOR & PROSTHETIC GROUP COENZYME

NOTE ON SPINAL CORD

  SPINAL CORD ★ THE SPINAL CORD IS IN FACT A TUBULAR BUNDLE OF NERVES.   STARTS FROM; ★ IT STARTS FROM BRAIN STEM AND EXTENDS TO LOWER BACK. SPINAL CORD IS THE    CONTINUATION OF MEDULLA OBLONGATA. MEDULLA OBLONGATA NARROWS DOWN    INTO AN OVAL SHAPED HOLLOW CYLINDER, THE SPINAL CORD, RUNNING THROUGH     THE VERTEBRAL COLUMN. CONSIST OF; ★ IT CONSIST OF A VERY LARGE NUMBER OF NEURONS. THE CELL-FIBRES AND BODIES     OF WHICH ARE ARRANGED IN A DEFINITE PATTERN. COVERED BY; ★ LIKE BRAIN, SPINAL CORD IS ALSO COVERED BY  MENINGES. THE VERTEBRAL    COLUMN SURROUNDS AND PROTECTS SPINAL CORD. SIZE OF SPINAL CORD; ★ SPINAL CORD IS ROUGHLY 40cm LONG AND ABOUT AS WIDE AS YOUR THUMB FOR    MOST OF ITS LENGTH. REGIONS OF SPINAL CORD; OUTER REGION; ★ THE OUTER REGION OF SPINAL CORD IS MADE OF WHITE MATTER . ★ CONTAINING MYELINATED AXONS. CENTRAL REGION; ★ THE CENTRAL REGION IS BUTTERFLY SHAPED THAT SURROUNDS THE CEN...