Photosynthesis - unit 4 AQA Biology a-level

Quiz about photosynthesis, can be used for any specification but fitted to the aqa biology specification at A2 :)

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  • Created by: Mirte
  • Created on: 05-06-14 11:55
Where does the light-dependent reaction take place?
In the thylakoid membrane of the chloroplast
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Where does the light-independent reaction take place?
In the stroma
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What is the function of light in the light-depedent reaction?
To make ATP, photolysis of water, to excite an electron in chlorophyll
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As the electron moves down the electron transfer chain in the light-dependent reaction it...
loses energy
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What two products from the light-dependent reaction are used in the light-indepedent reaction?
ATP and NADPH
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The products of the photolysis (splitting) of water are...
O2, H+ and an electron
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In the light-indepedent reaction (Calvin cycle) Ribulose biphospate combines with CO2, aided by enzyme action. What is the product of this?
Glycerate 3 phospate
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..................... reactions are used to reduce Glycerate 3 phosphate to triose phosphate in the calvin cycle.
ATP to ADP + Pi & NADPH to NADP + H
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In the calvin cycle, some of the Triose Phospate created is converted into glucose. What is NOT a possible use of the glucose produced?
Nitrification in roots
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Why is the rate of photosynthesis not equal to the net uptake of CO2 by a plant?
Because some CO2 produced in respiration is used for photosynthesis
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Why are there different pigments present in the chloroplast?
Because each pigment absorbs different wavelengths of light
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It is called the 'compensation point' when...
CO2 concentration (released) = O2 concentration (absorbed)
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'The rate of photosynthesis is affected by the factor whose level is at the least favourable value' this is called the...
limiting factor
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Why is hot methanol used to drop samples of photosynthesising algae into in the Calvin lollipop experiment?
Because it instantly stops the reaction by denaturing enzymes for photosyntheis
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How good was this quiz?
simply fabulous
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Other cards in this set

Card 2

Front

Where does the light-independent reaction take place?

Back

In the stroma

Card 3

Front

What is the function of light in the light-depedent reaction?

Back

Preview of the front of card 3

Card 4

Front

As the electron moves down the electron transfer chain in the light-dependent reaction it...

Back

Preview of the front of card 4

Card 5

Front

What two products from the light-dependent reaction are used in the light-indepedent reaction?

Back

Preview of the front of card 5
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