AS Biology Quiz

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  • Created by: Abi.99
  • Created on: 14-03-17 18:16
What causes Benedict's Reagent to change from blue to red?
Reducing Sugars
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Why does glycogen have many branches?
Easy access glucose for respiration
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What is the test for lipids?
Emulsion Test
3 of 21
What is the positive result of a Biuret test?
Blue -> Lilac
4 of 21
What does 'hypertonic' mean?
The concentration of solutes is greater outside the cell than in it.
5 of 21
How does an enzyme speed up a reaction?
Decreases activation energy
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Where is the energy stored in ATP?
Between the bonds of the phosphate groups
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What is the first stage of the absorption of fatty acids and monoglycerides in the small intestine?
Fatty acids and monoglycerides are emulsified to form micelles
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What is the second stage of the absorption of fatty acids and monoglycerides in the small intestine?
Fatty acids and monoglycerides leave the micelles to enter the epithelial cell
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What is the third stage of the absorption of fatty acids and monoglycerides in the small intestine?
Fatty acids link to form triglycerides
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What is the fourth stage of the absorption of fatty acids and monoglycerides in the small intestine?
Inside the Golgi apparatus, the fatty globules combine with proteins to form chylomicrons
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What is the fifth stage of the absorption of fatty acids and monoglycerides in the small intestine?
Chylomicrons leave the epithelial cell and enter the lacteal
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What is the sixth stage of the absorption of fatty acids and monoglycerides in the small intestine?
The lacteal transports the chylomicrons away from the intestine
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What is Asthma?
A respiratory condition where the airways become inflamed and irritated.
14 of 21
What happens at the spiracle?
Gases enter and leave
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What is the operculum?
A bony covering protecting the gills
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What do lysosomes do?
Contain digestive enzymes
17 of 21
What is a virus?
A non-living, acellular particle
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What is meant by the term 'universal' when describing the genetic code?
The same sequence of bases code for the same amino acids in all organisms
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What is meant by the term 'degenerate' when describing the genetic code?
More than one triplet codes for the same amino acid
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What is meant by the term 'non-overlapping' when describing the genetic code?
Each base is counted once only
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Other cards in this set

Card 2

Front

Why does glycogen have many branches?

Back

Easy access glucose for respiration

Card 3

Front

What is the test for lipids?

Back

Preview of the front of card 3

Card 4

Front

What is the positive result of a Biuret test?

Back

Preview of the front of card 4

Card 5

Front

What does 'hypertonic' mean?

Back

Preview of the front of card 5
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