AQA AS Biology Unit 1

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State 4 symptoms of pulmonary fibrosis.
Chronic dry cough, Shortness of breath, pain/discomfort in chest. weakness/fatigue.
1 of 6
Before cell fractionation, why is the suspension kept ice cold through the whole process of hydrogensis?
To reduce enzyme activity (that may cause damage to cells)
2 of 6
Name 4 substances found in oral rehydration solutions.
glucose, sodium ions, potassium ions, choride ions, citrade ion
3 of 6
Before carrying out cell fractionation why is the resulting suspension filtered?
Removes whole cells and debris.
4 of 6
Why is a booster dose of vaccination required for long term immunity?
Ensures memory cells are produced.
5 of 6
What is the molecular formula for lactose?
C12H22O11
6 of 6

Other cards in this set

Card 2

Front

Before cell fractionation, why is the suspension kept ice cold through the whole process of hydrogensis?

Back

To reduce enzyme activity (that may cause damage to cells)

Card 3

Front

Name 4 substances found in oral rehydration solutions.

Back

Preview of the front of card 3

Card 4

Front

Before carrying out cell fractionation why is the resulting suspension filtered?

Back

Preview of the front of card 4

Card 5

Front

Why is a booster dose of vaccination required for long term immunity?

Back

Preview of the front of card 5
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