Fichas
Photosynthesis
Fichas del conjunto (12)
- 1Name the two stages of photosynthesisLight dependent stage; carbon fixation stage
- 2Name the pigment in chloroplast that traps the light energy required for photosynthesisChlorophyll
- 3In the light-dependent stage of photosynthesis light energy is converted to chemical energy. Name the molecule in which the chemical energy is storedATP
- 4In the light-dependent stage of photosynthesis some energy is used to split water molecules. State what happens to the oxygen and hydrogen produced by this splitOxygen diffuses into atmosphere; hydrogen passes to carbon fixation stage
- 5State the role of carbon dioxide in the carbon fixation stage of photosynthesisCombines with hydrogen to form carbohydrate
- 6Give three possible limiting factors in the process of photosynthesistemperature; light intensity; CO2 concentration
- 7Write the word equation for photosynthesiswater + carbon dioxide ----(light, chlorophyll)--- = Sugar(glucose) + oxygen
- 8Describe 3 uses for the sugar produced by photosynthesisused in respiration; converted to starch; converted to cellulose; converted to phospholipid; converted to protein
- 9Explain what is meant by a limiting factorfactor close to its minimum value or in short supply; holds the rate of photosynthesis in check
- 10Explain why an increase in temperature can lead to an increase of the rate of photosynthesisraised in temperature increases the enzyme action; enzymes needed for photosynthesis
- 11Describe the need for the control leafUsed as control to compare with leaf 3; shows that enclosing in flask does not affect photosynthesis
- 12Give an account of the carbon fixation stage of photosynthesis in a green leaf cellCO2 absorbed from atmosphere combines with H from light stage; require ATP from light stage; makes sugar; energy in ATP locked into sugar molecules
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- National 5 Biology Fichas sobre Photosynthesis , creado por x_Rebecca_x el 03/05/2015.
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- x_Rebecca_x
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