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Biology
Topic 1
Cell Structure
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Cards (13)
What is the role of mitochondria ?
They carry out
aerobic respiration
, so provide
energy
for the
cell
to carry out
chemical reactions.
Ribosome
- The
site
where
protein synthesis
occurs
Name 3 sub-cellular structures (organelles) that are found in plant cells but not in animal cells.
Cell
wall
Permanent
vacuole
Chloroplast
What is the role of the cytoplasm ?
Gel-like
substance
where
chemical
reactions
take place
What is the cell - membrane and what is its role ?
Protective barrier around the
outside
of the
cell
Controls
what goes
in
and
out
of the
cell
What is the prokaryotic cell wall composed of ?
Peptidoglycan
In plants , what is the cell wall composed of ?
Cellulose
What does the permanent vacuole contain ?
Cell sap
What are plasmids, and what are their role?
Plasmids are small,
circular
loops of
DNA
that are
separate
to the main DNA.
They contain
‘extra genes’
that are sometimes useful to the bacteria, such as
antibiotic resistance.
Name 7 sub-cellular structures (organelles) that are found in bacterial cells.
Nucloid
/
Circular strand
of DNA
Flagellum
Plasmid
Cell wall
Cell membrane
Ribosome
Cytoplasm
Role of plant cell wall
It provides
strength
and
structure
to the plant cell, preventing it from
bursting
or shrinking when
water
enters/leaves the cell via
osmosis.
What is the cell ?
A cell is the
smallest
unit of life that can
live
on
its
own.
Cells make up all
living organisms
and their
tissues.
Name 5 sub-cellular structures (organelles) that are found in both animal and plant cells.
Cell
membrane
Ribosome
Nucleus
Cytoplasm
Mitochondria