13. Carbon fixation in plants refers to _____. the reaction between any two carb
ID: 148111 • Letter: 1
Question
13.
Carbon fixation in plants refers to _____.
the reaction between any two carbon containing molecules.
the breakdown of glucose.
the synthesis of carbon dioxide.
the reaction between carbon dioxide and RuBP.
14.
The electrons that are excited by light energy in photosystems II and I are eventually used to_____.
breakdown RuBP
convert glucose to carbon dioxide
breakdown starch into glucose
reduce NADP+ to NADPH
15.
The light reaction of photosynthesis occurs in the ______.
thylakoid membranes
stroma
cytoplasm
matrix
16.
The final product of the Calvin cycle is ______.
citrate
G3P (glyceraldehyde 3-phosphate)
lactate
pyruvate
the reaction between any two carbon containing molecules.
the breakdown of glucose.
the synthesis of carbon dioxide.
the reaction between carbon dioxide and RuBP.
14.
The electrons that are excited by light energy in photosystems II and I are eventually used to_____.
breakdown RuBP
convert glucose to carbon dioxide
breakdown starch into glucose
reduce NADP+ to NADPH
15.
The light reaction of photosynthesis occurs in the ______.
thylakoid membranes
stroma
cytoplasm
matrix
16.
The final product of the Calvin cycle is ______.
citrate
G3P (glyceraldehyde 3-phosphate)
lactate
pyruvate
Explanation / Answer
13. d. The reaction between carbon dioxide and RuBP.
The process in plants and algae by which atmospheric carbondioxide is converted into organic carbon compounds, such as carbohydrates, usually by photosynthesis.
14. d. reduce NADP+ to NADPH
These electrons, excited by photosystem II, enter an ETC, then are eventually passed to ferredoxin and used to reduce NADP+ to NADPH.
15. a. thylakoid membranes
In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, wherethe light-independent reactions take place.
16. G3P (glyceraldehyde 3-phosphate)
Light independent reactions or dark reactions
enzymes in the stroma use chemical energy (ATP and NADPH) from light reactions. Its Output is:
- G3P - raw material for
production of glucose and other carbohydrates
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