1697946
Description
Mind Map by harriet colquhoun , updated more than 1 year ago
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Created by harriet colquhoun
over 9 years ago
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Cell Structure
- Resolution and
magnification
achieved by a
Light
microscope, a
TEM and an
SEM
- Resolution
- Light
- 200nm
- 200nm
- TEM
- 0.1nm
- 0.1nm
- SEM
- 0.1nm
- 0.1nm
- Light
- Magnification
- Light
- x1500
- x1500
- TEM
- x250,000
- x250,000
- SEM
- x100,000
- x100,000
- Light
- Resolution
- Difference
between
Resolution and
Magnification
- Resolution
- Ability to distinguish two
separate points as
distinct from each other
- Ability to distinguish two
separate points as
distinct from each other
- Magnification
- No. of times greater an
image is than the object
- No. of times greater an
image is than the object
- Resolution
- Need for
staining
samples
- most biological
material =
transparent
- allows specimen to be seen
- stains contain chemicals
which bind to chemicals
on/in specimen
- stains contain chemicals
which bind to chemicals
on/in specimen
- allows specimen to be seen
- most biological
material =
transparent
- Calculating magnification
- mag = Image / actual size
- 1000um in 1mm
- mag = Image / actual size
- Describe and interpret
eukaryotic structures & functions
- Nucleus
- contains
genetic info in
DNA of
chromosomes
- separated from
cytoplasm by
nuclear envelope
with pores for
communication
between nucleus
and cytoplasm
- contains
genetic info in
DNA of
chromosomes
- Nucleolus
- Production of ribosomes and RNA
- dark staining in nucleus
- Production of ribosomes and RNA
- Nuclear Envelope
- Contains
pores which
allow
substances
out/ in, e.g. ribosomes
- Contains
pores which
allow
substances
out/ in, e.g. ribosomes
- RER
- Site for
ribosomes
and
transports
proteins to
Golgi App
- Site for
ribosomes
and
transports
proteins to
Golgi App
- SER
- makes lipids
- makes lipids
- Golgi Apparatus
- modifies and packages
proteins, puts them into
vesicles
- modifies and packages
proteins, puts them into
vesicles
- Ribosomes
- Site of protein
synthesis, use
Amino acids
- Site of protein
synthesis, use
Amino acids
- Mitochondria
- site where
ATP is made
during
respiration
- site where
ATP is made
during
respiration
- Lysosomes
- contain powerful
digestive enzymes
- spherical
sacs
surrounded
by a single
membrane
- contain powerful
digestive enzymes
- Chloroplasts
- site of photosynthesis
- site of photosynthesis
- Plasma
Membrane
- separates
outside
contents from
inside cell
- separates
outside
contents from
inside cell
- Centrioles
- Assembles
microtubules for
cytoskeleton
- Forms spindle for
mitosis
- Assembles
microtubules for
cytoskeleton
- Undulipodium
- enables
movement
of cells, e.g.
sperm cell
- enables
movement
of cells, e.g.
sperm cell
- Cilia
- move substances in a
synchronised manor over the
surface of a cell
- move substances in a
synchronised manor over the
surface of a cell
- Nucleus
- organelles involved in
production and
secretion of proteins
- 1) In Nucleus -
- 1) In Nucleus -
- Importance of cytoskeleton
- mechanical strength, aiding
transport, cell movement
- Compare/Contrast
structure of
prokaryotic and
eukaryotic cells
- Compare/Contrast structure
and ultrastructure of plant
and animal cells
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