1. By: Eva Sorrosal 4ºB

2.  A cell is the basic structural and functional
unit of all organisms; cells may exist as
independent units of life(as in monads) or
may form colonies or tissues as in higher
plants and animals.

3.  The cell was discovered by Robert Hooke
in the XVII century, with the help of his
microscope.
Hooke’s miscroscope Robert Hooke

4.  We can see cells trough a microscope.
Last year we do a laboratory practise
which consists of with a toothpick you
have to rub it in your mouth to take a
little bit of saliva. Later you rub the
toothpick into a laboratory plate and
you fix it with another plate. At the end
you only have to adjust the microscope
and see through it. You will see your
saliva cells separating.

5.  There are two different types of cells,
eukaryotic cells(with nucleous) and
procaryotic(without nucleous) cells.

6.  Eukaryotic cells are those single-celled or
mullticellular organism whose cells
contain a distinct membrane-bound
nucleous. Eukaryotic cells also contain
many internal membrane-bound
structures called organelles.These
organelles such as the mitochondrion or
chloroplast serve to perform metabolic
functions and energy conversion.

7.  There are two types of eukaryotic cells:
animal cells and plant cells.

8.  Animal cells are typical of the eukaryotic cell,
enclosed by a plasma membrane and
containing a membrane-bound nucleus and
organelles. Unlike the eukaryotic cells of plants
and fungi, animal cells do not have a cell wall.
This feature was lost in the distant past by the
single-celled organisms that gave rise to the
kingdom Animalia.

9.  A Plant Cell is any type of cell that comes from
an organism belonging to the Kingdom
Plantae.A Plant Cell consists of Nucleus,
Mitochondria, Endoplasmic Reticulum,
Ribosomes,Golgi Apparatus, Cytoplasm,
Microfilaments, Microtubules, Intermediate
Filaments, Lysosomes, and other minor
organelles.

10.  Cells that lack a membrane-bound nucleus are
called prokaryotes (from the Greek meaning
before nuclei). These cells have few internal
structures that are distinguishable under a
microscope. Cells in the monera kingdom such
as bacteria and cyanobacteria (also known as
blue-green algae) are prokaryotes

11.  Are large domain of prokaryotic microorganisms.
Typically a few micrometres in length, bacteria
have a wide range of shapes, ranging
from spheres to rods and spirals. Bacteria are
present in most habitats on Earth, growing in
soil, acidic hot springs, radioactive waste, water,
and deep in the Earth's crust, as well as in
organic matter.

12. Prokaryotic cells Eukaryotic cells
contains one circular chromosome contains paired chromosomes in
which is not present in a nuclear membranes.
membrane.
has peptidoglycan cell walls. has polysaccharide cell walls.
grows by binary fission. grows by mitotic spindle.
No cytoskeleton Always have cytoskeleton
Reproduction always asexual Reproduction sexual and asexual
No nucleous Always have nucleous

13.  I get the information from my last year
biology notebook, from wikipedia,
http://www.biologymad.com/resources/
AS%20Cells.pdf and the images from
Google images searching with the name
of what I want to look.