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Cells were discovered in 1665 by British scientist Robert Hooke.
Animal and plant cell range in size between 1 and 100
micrometers and are thus visible only with the aid of a
enclosed by a plasma membrane and
containing a membrane-bound
nucleus and organelles.
animal cells do not have a cell wall.
Shape of plant cell
Mechanical support of a
Separates the content of a cell
from the outer environment
Regulates the movement of
substances into and out of
Controls all activities of the cell
Chromosomes inside the nucleus
carry genetic information which
determines the characteristics and
functions of a cell.
• Mitochondria are oblong shaped
organelles that are found in the
cytoplasm of every eukaryotic cell.
• In the animal cell, they are the main
power generators, converting oxygen
and glucose into energy.
• The endoplasmic reticulum is a
network of sacs that manufactures,
processes, and transports
chemical compounds for use
inside and outside of the cell.
• It is connected to the double-layered
nuclear envelope, providing a
pipeline between the nucleus and the
SMOOTH ENDOPLASMIC RETICULUM
Synthesis lipids and
The Golgi apparatus is the distribution and
shipping department for the cell's chemical products.
It modifies proteins and fats built
in the endoplasmic reticulum
and prepares them for export to the outside of the cell.
•The main function of these micro bodies is digestion.
• Lysosomes break down cellular waste products and
debris from outside the cell into simple compounds,
which are transferred to the cytoplasm
as new cell-building materials.
- a single layer of unit membrane
enclosing fluid in a sack
- produces turgid pressure against cell
wall for support
- stores water and various chemicals
- may store insoluble wastes
Absorbing light for
Give green color to plant
Involve in Synthesis proteins
DNA/ chromosome is copied by RNA
RNA sent information to the ribosome
Ribosome synthesis enzyme according to
Protein / enzyme produced is transported
by RER in vesicles called transport
Vesicles move to Golgi body, proteins are
processed before secreted outside the cell.
Density of certain organelles with
the function of specific cells
What organelle can be found most in palisade cell ? WHY?
What organelle can be found most in muscle cell ? WHY?
What organelle can be found most in sperm cell ? WHY?