Wednesday 15 March 2017

The Eukayotic Cell

Under Eukaryotic cell comes the Animal cell and Plant cell, and in comparison to the size the prokaryotic cell, the eukaryotic cell is much larger.


ANIMAL CELL

An animal cell and plant cell does have much more in common then in difference.

Typical Features;

Animal cell with the added chloplasts which is only in plants



 

MITOCHONDRIA;
the organelle that provides energy for the entire cell, by extracting from food during oxidative metabolism.

NUCLEUS;
command centre of the cell where DNA is located

ENDOPLASMIC RETICULUM;
smooth and rough;
Smooth - System of internal membranes that aids; manufacture of carbohydrates and lipids
Rough - Internal membranes studded with ribosomes that carry out proteins synthesis

GOLGI BODY;
collects, packages and distributes molecules manufactures molecules in the cell

(PLASMA) MEMBRANE;
Lipid bilayer in which proteins are embedded

RIBOSOMES;
Some complexes of RNA and Proteins that are sites synthesis

CHLOROPLAST;
is only found in the plant cell. This is on the diagram to show the difference in the animal and plant cells, chloroplast helps the plant cell produce food as it attaches it from the sun enabling photosynthesis.



PLANT CELL




As above you have the chloroplast which looks like this;
Heterotrophs capture light energy to produce their own food., Animal and bacterial cells contain chlorophyll, but it is not bound within organelles., Animal cells are able to capture light energy through stromal lamellae.




The only difference between a plant cell and an animal is;

  1. Vacuole
  2. Chloroplast (stated above)
  3. Cell wall

VACUOLE;
 A membrane-bound organelle in the cytoplasm of most cells, especially plant cells, containing water and dissolved substances such as salts, sugars, enzymes, and amino acids.

CELL WALL;
a multi-layered structure unique to plants.
uses for this;
Strength to support the plant
Rigidity to fix cell shape
Flexibility
Porosity
Water-proofing
Barrier to pests
Protection against environmental stress 
Apoplastic transport
Signalling and sensing 


Cross section of both animal and plant cell to compare both

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