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Biology connections to topic 9.2, 9.2Phloem sieve tubes are primarily…
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9.2Phloem sieve tubes are primarily composed of two main types of cells – sieve element cells and companion cells
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1.1According to the cell theory, living organisms are composed of cells
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Phloem loading leads to a high concentration of sugars in the phloem, making the phloem HYPERTONIC
1.4 Osmolarity:Solutions with a relatively higher osmolarity are categorised as hypertonic (high solute concentration ⇒ gains water)
Translocation: Phloem transports sucrose and amino acids up and down the plant.
The movement of phloem sap requires energy as it is an active process (active translocation)
2.3, 2.4: Sucrose (carbohydrate) and amino acids (protein monomer) are small molecules that are digested in animals and then assimilated.
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6.1, 6.2 In plants. phloem can be considered what would be the veins (ex. hepatic portal vein) that carries nutrients throughout the organism.
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