0
What are most of the PGAL made in the Calvin cycle are used for?
Wiki User
∙ 13y ago
PGAL is a major product of the Calvin Cycle. PGAL is produced and can be used in the light reactions, where they synthesize additional molecules of ATP and NADPH.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
End product of the Calvin cycle?
The cycle spends ATP as an energy source and consumes NADPH2 as reducing power for adding high energy electrons to make the sugar. There are three phases of the cycle. In phase 1 (Carbon Fixation), CO2 is incorporated into a five-carbon sugar named ribulose bisphosphate (RuBP). The enzyme which catalyzes this first step is RuBP carboxylase or rubisco. It is the most abundant protein in chloroplasts and probably the most abundant protein on Earth. The product of the reaction is a six-carbon intermediate which immediately splits in half to form two molecules of 3-phosphoglycerate. In phase 2 ( Reduction), ATP and NADPH2 from the light reactions are used to convert 3-phosphoglycerate to glyceraldehyde 3-phosphate, the three-carbon carbohydrate precursor to glucose and other sugars. In phase 3 (Regeneration), more ATP is used to convert some of the of the pool of glyceraldehyde 3-phosphate back to RuBP, the acceptor for CO2, thereby completing the cycle. For every three molecules of CO2 that enter the cycle, the net output is one molecule of glyceraldehyde 3-phosphate (G3P). For each G3P synthesized, the cycle spends nine molecules of ATP and six molecules of NADPH2. The light reactions sustain the Calvin cycle by regenerating the ATP and NADPH2. Bottom line is 3 CO2 from the atmosphere are converted to glyceraldehyde 3-phosphate (G3P) and ATP & NADPH2 from the light stage are used in the process.
What enzyme is necessary for the dark reactions?
Rubisco is the key enzyme for the dark reactions, also know as the Calvin Cycle. It is thought to be the most abundant protein on Earth.
Photosynthesis and cellular respiration are part of which cycle?
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.
What is the significance of sugar G3P?
For every six molecules of CO2 that enter the Calvin cycle, two molecules of G3P are produced. Most of the G3P produced during the Calvin cycle - 10 of every 12 G3P produced - are used to regenerate the RuBP in order for the cycle to continue. Some of the molecules of G3P, however, are used to synthesize glucose and other organic molecules
During photosynthesis when is carbon dioxide utilized?
Photosynthesis uses carbon dioxide with water to make glucose. The carbon atoms are the most important in this exchange, as the oxygen, while used, is a little excessive, and extra is left over once the process is complete.
What is the most common method of carbon dioxide fixation?
The Calvin cycle is the most widespread carbon dioxide fixation pathway in bacteria
What will most likely happens to a plant that does not receive enough sunlight?
the Calvin cycle will produce less glucose
What is needed by the Calvin Cycle?
The Calvin cycle is a 'light independent cycle' that takes place in the chloroplasts. In this cycle, water and carbon dioxide is converted into organic compounds. The key enzyme involved is Rubisco.
Why is CO2 removed in the Calvin cycle?
CO2, along with ATP and NADPH, is used in the calvin-cycle to make G3P, which then, in most cases, is combined with other G3P to make Glucose.
In most plants stomata on a leaf must be during the calvin benson cycle?
In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
In most plants stomata on a leaf must be during the Calvin-Benson cycle.?
In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
In most plants stomata on a leaf must be during the Calvin-Benson cycle?
In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
What will most happen to a plant that does not receive enough sunlight?
the Calvin cycle will produce less glucose
What are the three things the Calvin cycle requires?
Light, water and carbon dioxide are required in the calvin cycle, 3 photons, 3 water molecules, and 3 carbon dioxide, although most people refer to photosynthesis and making glucose, requiring 2 calvin cycles
What stage of respiration produces the most ATPs?
electron transport chain produces most of the ATP
What will most likely happen to a plant that does not revive enough sunlight?
The Calvin cycle will produce smaller amounts of glucose.
The most abundant protein in the world is the enzyme that initiates the fixation of carbon in the Calvin cycle This enzyme is called?
Rubisco
