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Chapter 10: Photosynthesis
 
Pre-Test
 

Pre-Test


1 .       Plants are photoautotrophs. What does this mean? (Overview E-Book) [Hint]

 They make their own food from inorganic materials.
 They are among the producers of the biosphere.
 They are in the same category as algae and cyanobacteria.
 They use light energy to drive the synthesis of organic molecules.
 All of the above.
2 .       The ultimate source of energy to support most life on Earth is _____. (Overview E-Book) [Hint]

 photosynthetic plants
 chemosynthetic microbes
 geothermal heat
 the carbon cycle
 sunlight
3 .       The photosynthetic membranes are found in the _____ in plant cells. (Concept 10.1E-Book) [Hint]

 Golgi apparatus
 endoplasmic reticulum
 mitochondria
 chloroplasts
 nucleus
4 .       In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____. (Concept 10.2E-Book) [Hint]

 radio waves and microwaves
 infrared radiation and microwaves
 infrared radiation and radio waves
 X-rays and ultraviolet radiation
 ultraviolet radiation and infrared radiation
5 .       Which of the following is not a product of the light reactions of photosynthesis? (Concept 10.2E-Book) [Hint]

 oxygen
 sugar
 high-energy electrons
 ATP
 NADPH
6 .       When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____. (Concept 10.2E-Book) [Hint]

 splitting water
 breaking down ATP
 removing them from NADPH
 fixing carbon
 oxidizing glucose
7 .       Photosynthesis is an _____ process of carbon _____, while respiration is an _____ process of carbon _____. (Concept 10.3E-Book) [Hint]

 endergonic ... reduction ... exergonic ... oxidation
 endergonic ... oxidation ... endergonic ... reduction
 exergonic ... reduction ... endergonic ... oxidation
 endergonic ... oxidation ... exergonic ... reduction
 exothermic ... oxidation ... endothermic .... reduction
8 .       Which of the following is produced by the light reactions of photosynthesis and consumed by the Calvin cycle? (Concept 10.3E-Book) [Hint]

 NADPH
 oxygen
 water
 sugar
 ADP + Pi
9 .       The overall function of the Calvin cycle is _____. (Concept 10.3E-Book) [Hint]

 capturing sunlight
 making sugar
 producing carbon dioxide
 splitting water
 oxidizing glucose
10 .       C4 plants occur more commonly in desert conditions because _____. (Concept 10.4E-Book) [Hint]

 they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed
 they produce water as a product of their photosynthetic pathways
 they produce carbon dioxide internally via photorespiration
 the stomata open at night and close in the day
 they store carbon by incorporating CO2 into organic acids that are later catabolized





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