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Worksheets4.04 Photosynthesis Quiz, AP Bio
Total questions: 10
Worksheet time: 5mins
The accumulation of free oxygen in Earth's atmosphere began _____
with the origin of life and respiratory metabolism
with the origin of photosynthetic bacteria that had photosystem I
with the origin of cyanobacteria that had both photosystem I and photosystem II
with the origin of land plants
A molecule that has been phosphorylated
has a decreased chemical reactivity; it is less likely to provide energy for cellular work
has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate.
has an increased chemical potential energy; it is primed to do cellular work.
has less energy than before its phosphorylation and therefore less energy for cellular work.
A student does an experiment to measure the rate of photosynthesis of spinach leaf disks. She decides to compare different colors of water to see if they affect the rate. Which color would you expect to have the highest rate of photosynthesis based on your knowledge of light and photosynthesis?
Green
Blue
Red
Clear
The graph shows the absorption spectrum for chlorophyll a and the action spectrum for photosynthesis. Based on the information in the graph, which wavelengths lead to the least absorbance?
400-500
500-600
600-700
700-750
Which wavelength of light in the figure is most effective for absorbance of chlorophyll a?
400 nm
450 nm
600 nm
675 nm
During photosynthesis, electrons travel downhill in which sequence?
food → NADH → electron transport chain → oxygen
glucose → pyruvate → ATP → oxygen
water → photosystem II → electron transport chain → NADPH
light → electron transport chain → chlorophyll --> ATP
Where are the proteins of the electron transport chain used in photosynthesis located?
thylakoid membrane
stroma
chloroplast outer membrane
The primary role of water in photosynthesis is to
act as an acceptor for electrons and hydrogen, forming water.
Be split and act as a source of electrons.
combine with carbon, forming CO2.
combine with lactate, forming NADPH.
Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. This damage will have the most direct effect on which of the following processes?
the splitting of water
the flow of electrons from photosystem II to photosystem I
the synthesis of ATP
the reduction of NADP+
To test the hypothesis that a particular plant synthesizes storage lipids by using G3P from photosynthesis, a researcher plans to use radiolabeled precursors to track the molecules through the biosynthetic pathway. Which of the following radiolabeled precursors is most appropriate for the research to use?
15Nitrogen-labeled N2, because atmosphere nitrogen is fixed to amino acids by photosynthesis.
14Carbon-labeled CO2, because atmosphere carbon is fixed to carbohydrates by photosynthesis.
35Sulfur-labeled methionine, because amino acids are incorporated into lipids during photosynthesis.
32Phosphorous-labeled phosphate, because lipids are stored in plants as phospholipids.
