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Structure of DNA ­ Reference pages 3-5 knowledge booklet
ACTIVITY 1
Read the information on page 3 about the structure of DNA in silence and
highlight all the key scientific words. Pick out the relevant keyword cards from
your envelope.
Part of Confidence
Specification
Identifying organelles
Describing function of
organelles
Relating the function of
organelles to individual
tissues
Comparing microscopes
Identifying which
microscope was used
for an image
Using the magnification
calculations
Calculating size of
objects using a scale
bar.…read more

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Cell structure
The cell is the basic building block of the body and it is therefore vital that we know
how the cell functions to help treat disease.
The cell itself is built up of different organelles (little organs) that provide certain
functions for the cell.
Label the following Eukaryotic cell with the correct organelles.
This is an animal cell, other Eukaryotic cells include plant and
fungi cells.…read more

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Complete the following table with the organelle shown and
the function of that organelle.…read more

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Rough ER Synthesis of
proteins
Smooth ER Lipid and
carbohydrate
synthesis
Golgi Modification and
Apparatus packaging of
proteins into
vesicles
Ribosomes Synthesis of
proteins
Mitochondri Provide energy for
a the cell as ATP
(respiration)
Vesicles and Storage and
lysosomes transport of
materials in the cell
5…read more

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Chloroplast Photosynthesis
Contains chlorophyll
for the absorption of
light to create glucose
Cell selectively
Membrane permeable only lets
certain molecules in
Cell wall Allows the cells to
maintain their
shape and resist
osmotic lysis.
Flagellum Enable motility
Cilia
Assist movement of
fluid or act as a
sensory organ
Prokaryote Cells
Prokaryote cells are unicellular organisms with a relatively
simple structure. It is widely thought that Eukaryotic cells like
plant and animal cells had evolved in some way from this less
complicated organism.…read more

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Complete the table below-
Feature Prokaryotic Eukaryotic
Nucleus Not present Present
DNA Circular Linear
DNA organisation Proteins fold and Associated with
condense proteins called
histones
Extra Circular DNA Only present in
Chromosomal DNA called plasmids certain organelles
Mitochondria/
chloroplasts
Organelles Non membrane Membrane bound
bound and
non-membrane
bound
Cell Wall Peptidoglycan Fungi=Chitin
Plants= cellulose
7…read more

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Animals= absent
Ribosomes Smaller 70s Larger 80s
Cytoskeleton Present Present and more
complicated
Reproduction Binary fission Asexual or sexual
Cell Type unicellular Unicellular and
multicellular
Cell Surface present present
membrane
Protein Synthesis and transport in Cells
Reference Pages
Activity:
1. In groups of 2/3, identify the organelles involved in the
synthesis of an enzyme in a cell and its subsequent transport out
of the cell. Write these out in order on your white board.
2. Check your answer with another group. Do you agree?
3.…read more

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This organelle
uses the code
on the mRNA
to join amino
acids
together in
the correct
order to
make a
protein.
This organelle modifies and transports the newly formed protein.…read more

Page 10

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This
organelle further modifies the the protein and packages it into labeled vesicles
This organelle
controls
movement into
and out of the
cell.…read more

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