Higher Cell Biology
- Created by: Kate_xo
- Created on: 08-09-13 16:02
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- Cell Biology
- Osmosis In Cells
- Plant Cell
- Pure Water - Cell is turgid
- 0.85% salt solution - remains unchanged
- 1.7% salt solution - cell is plasmolysed and flaccid
- Animal Cell
- Pure water - cell bursts
- 0.85% salt solution - remains unchanged
- 1.7% salt solution - cell shrinks
- Plant Cell
- Structure and Function
- Red Blood Cell
- small size and biconcave to present large surface area for oxygen
- rich supply of haemglobin present
- No nucleus so there is more room for oxygen
- Palisade Cell
- chloroplasts present
- columnar shape to allow green layer to be presented to light
- Phloem
- sieve tube
- Companion cell
- continuous system of cytoplasmic strands
- Xylem
- Hollow tube
- lignin deposited in rings to allows for expansion and contraction
- Red Blood Cell
- Osmosis In Cells
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