AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what happens in the Calvin Cycle
A
O2 is put together to make glucose
B
CO2 is put together to make sugars
C
H20 is put together to make oxygen
D
CO2 is put together to make glucose
Explanation: 

Detailed explanation-1: -In the Calvin cycle, carbon atoms from CO2start text, C, O, end text, start subscript, 2, end subscript are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on, ATP and NADPH from the light reactions.

Detailed explanation-2: -The process was first identified by American biochemist Dr. Melvin Calvin in 1957. The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air into sugar, the food autotrophs need to grow.

Detailed explanation-3: -The Calvin cycle uses the chemical energy of ATP and reducing power of NADPH from the light dependent reactions to produce sugars for the plant to use.

Detailed explanation-4: -As the components of the cycle are all recycled, the Rubisco can just keep picking up carbon dioxide and shooting out sugars, turning an inorganic gas into an energy molecule useful for life.

Detailed explanation-5: -Air Company’s three-step process begins by combining CO2 and hydrogen to make methanol. Removing hydrogen then turns the methanol into formaldehyde, a colorless and strong-smelling chemical used to make building materials and cleaning agents. The third chemical reaction produces a simple sugar called D-glucose.

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