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BIO181 Chapter 10 MasteringBiology Homework Exam Questions And Answers
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BIO181 Chapter 10 MasteringBiologyHomework Exam Questions And Answers
Part A - Photosynthesis and respiration in plants
Drag the labels from the left to their correct locations in the concept map on
the right. Not all labels will be used. - -a. sunlight
b. photosynthesis
c. chloroplasts
d. sugar
e. chlorophyll
f. carbon dioxide
g. cellular respiration
h. mitochondria
-Part A - Inputs and outputs of the light reactions
From the following choices, identify those that are the inputs and outputs of
the light reactions. (Recall that inputs to chemical reactions are modified
over the course of the reaction as they are converted into products. In other
words, if something is required for a reaction to occur, and it does not remain
in its original form when the reaction is complete, it is an input.)
Drag each item to the appropriate bin. If the item is not an input to or an
output from the light reactions, drag it to the "not input or output" bin. - --
input:
light, water, NADP+, ADP
- output:
O2, ATP, NADPH
- not input or output:
glucose, CO2,G3P
-Part B - Inputs and outputs of the Calvin cycle
From the following choices, identify those that are the inputs and outputs of
the Calvin cycle.
Drag each item to the appropriate bin. If the item is not an input to or an
output from the Calvin cycle, drag it to the "not input or output" bin. - --
input:
ATP, NADPH, CO2
- output:
ADP, NADP+, G3P
- not input or output:
light, glucose, O2
, -Part C - Redox reactions of photosynthesis
In photosynthesis, a redox compound that is produced in the light reactions
is required to drive other redox reactions in the Calvin cycle, as shown in this
figure along with other components of photosynthesis.
Drag the terms to the appropriate blanks to complete the following
sentences summarizing the redox reactions of photosynthesis. Terms may
be used once, more than once, or not at all - -1. In the light reactions, light
energy is used to oxidize H2O to O2.
2. The electrons derived from this oxidation reaction in the light reactions are
used to reduce NADP+ to NADPH.
3. The Calvin cycle oxidizes the light-reactions product NADPH to NADP+.
4. The electrons derived from this oxidation reaction in the Calvin cycle are
used to reduce CO2 to G3P.
-Part D - Chloroplast structure and function
In eukaryotes, all the reactions of photosynthesis occur in various
membranes and compartments of the chloroplast.
Identify the membranes or compartments of the chloroplast by dragging the
blue labels to the blue targets.
Then, identify where the light reactions and Calvin cycle occur by dragging
the pink labels to the pink targets.
Note that only blue labels should be placed in blue targets, and only pink
labels should be placed in pink targets. - -a) stroma
b) thylakoid membrane
c)cytosol
d) location of Calvin Cycle
e) thylakoid space
f)location of light reactions
g) envelope membranes
-Part A - Functions of the photosystems
The light reactions require the cooperation of two photosystems to power
linear electron flow from water to NADP+.
Drag each item into the appropriate bin depending on whether the process is
associated with Photosystem II (PS II) only, Photosystem I (PS I) only, or both
PS II and PS I.
Note that "electron transport chain" here refers to the electron transport
chain between the two photosystems, not the one that functions after PS I. -
--Photosystem II
oxidation of water
reduction of electron transport chain between the two photosystems
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