How do cells maintain life?
AoS 1- How do cellular process work?
Learning Intention:
To understand and explain the structure of the cell and its components
Success criteria: I can
• Draw a labelled plasma membrane
• Label the components of a plasma membrane
• Explain the composition and roles of biomolecules in the plasma
membrane
• Discuss the role membranes play in transport into and out of the cell
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An
evolutionary
tree
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Evolution of complex cells
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Revision- interactive
How do cells maintain life?
Eukaryotic OR Prokaryotic cell
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listen
watch
write
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Learning intention:
To understand how the plasma membrane allows materials to pass in and out of a cell
Success criteria
I can…..
•State the components of a membrane
•Draw a labelled membrane
•Explain the composition and roles of each of the biomolecules
•Discuss the roles membranes play in transport into and out of a cell
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Choose from these labels
• Glycolipids
• Integral protein
• Cholesterol
• Glycoprotein
• Fatty acid tails
• Phosphate head
• Peripheral protein
• Phospholipid bilayer
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Choose from the following
functions to each label on the
diagram.
• Attracts water
• Repels water
• Make up the bilayer
• Helps maintain flexibility of
the membrane
• Involved in cell-to-cell
recognition
• Helps to transport specific
molecules across the
membrane
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If you are a kinaesthetic learner- try and build a membrane
yourself!
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GTAC online course
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Na ions and K ions are actually very
small. So why can’t they SQUEEZE
between the phospholipid bilayer?
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What physical difference can
you see between channel
proteins (protein channels)
and carrier proteins?
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State 3 factors that AFFECT the rate of DIFFUSION across a plasma membrane
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Explain
Use termshypotonic/hypertonic,
isotonic, haemolysis and
crenation
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Explain
Use terms hypotonic/hypertonic and
isotonic/flaccid/ plasmolysis and turgid to
describe what is happening
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Hypertonic, hypotonic or isotonic solutions
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Investigating the osmolarity of a plant cell
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Bulk Transport
proteins
carbohydrates
Cellular waste
Microscopic particles
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exocytosis
endocytosis
phagocytosis
pinocytosis
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