Transcript 3.1.3 Ultrastructure of a Cell

3.1.3 Ultrastructure of a Cell
L.O: To label the organelles found in a
eukaryotic cell
To describe the function of each organelle
Starter: Spot the Difference! In pairs, look for
the differences between the two cells below:
Prokaryotic v.s. Eukaryotic Cell
‘Before nucleus’
‘after/good nucleus’
Prokaryotic
Types of
organisms
Nucleus
Cell Wall
Organelles
Bacteria, algae
Eukaryotic
Animals, plants,
fungi
No distinct nucleus Nucleus
surrounded by
nuclear membrane
Always have a cell Only in plants and
wall
fungi
Very few
Many
Cell Organelles
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Cell Structure Poster
• Collect a piece of coloured paper and 7
different coloured pens
• Draw a circle taking up nearly all of the
page
Nucleus: contains chromatin, the condensed
form of chromosomes. Nuclear pores allow
substances to move in and out. Nucleolus
makes ribosomes.
Nucleus: contains chromatin, the condensed
form of chromosomes. Nuclear pores allow
substances to move in and out. Nucleolus
makes ribosomes.
Ribosomes: either found in cytoplasm or
attached to rough E.R. These are the site
of protein synthesis.
Nucleus: contains chromatin, the condensed
form of chromosomes. Nuclear pores allow
substances to move in and out. Nucleolus
makes ribosomes.
Ribosomes: either found in cytoplasm or
attached to rough E.R. These are the site of
protein synthesis.
Endoplasmic Reticulum: (2 types)
Rough E.R. has ribosomes attached and provides
large surface area for making proteins.
Smooth E.R. Creates and stores lipids and
carbohydrates.
Golgi Apparatus: Processes and modifies
proteins and lipids made by the E.R. These
are packaged into vesicles and move out of
the cell. Also makes lysosomes.
Golgi Apparatus: Processes and modifies
proteins and lipids made by the E.R. These
are packaged into vesicles and move out of
the cell. Also makes lysosomes.
Lysosomes: vesicles containing enzymes
Golgi Apparatus: Processes and modifies
proteins and lipids made by the E.R. These
are packaged into vesicles and move out of
the cell. Also makes lysosomes.
Lysosomes: vesicles containing enzymes
Mitochondria: site of aerobic respiration.
Double membrane folded into cristae to
increase surface area, inner matrix
contains enzymes for respiration.
Golgi Apparatus: Processes and modifies
proteins and lipids. These are packaged
into vesicles and move out of the cell. Also
makes lysosomes.
Lysosomes: vesicles containing enzymes
Mitochondria: site of aerobic respiration.
Double membrane folded into cristae to
increase surface area, inner matrix
contains enzymes for respiration.
Plasma membrane: made of lipids and
carbohydrates, it regulates the movement
of substances in and out of the cell.
Specialised Cells
Extension:
Think of examples of cells with lots of:
a) Mitochondria
b) Endoplasmic reticulum
c) Lysosomes
Bingo!
Draw a 3 x 3 grid and write in 9 of
the following words:
Lysosome, vesicle, prokaryotic, eukaryotic,
endoplasmic reticulum, mitochondria, pores,
golgi apparatus, ribosomes, chromatin,
plasma membrane, cristae, enzymes,
matrix, nucleolus.