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Rubisco
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Which is the most abundant carbon-fixing enzyme on earth?
Which is the most important and abundant carbon-fixing enzyme on earth
Which is the most important and abundant carbon-fixing enzyme on earth?
Rubisco
What is the loss of carbon-fixing activity of the enzyme RuBP carboxylase directly proportional to?
The loss of carbon-fixing activity of the enzyme RuBP carboxylase is directly proportional to the rate of photorespiration in the plant. As photorespiration increases, the enzyme's efficiency in fixing carbon dioxide decreases, leading to reduced photosynthetic productivity.
What is the most abundant protein in the biosphere?
Rubisco is considered the most abundant protein in the biosphere. It is an enzyme involved in photosynthesis, found in plants, algae, and some bacteria. Rubisco plays a crucial role in fixing carbon dioxide from the atmosphere into organic molecules.
What is the loss of carbon fixing activity of the enzyme RuBP carboxylase directly proportional to?
heat
Who discovered rubisco?
Rubisco was discovered by the American scientist, Martin Kamen, in the 1940s. Rubisco is the most abundant enzyme on Earth and plays a crucial role in the process of photosynthesis by fixing carbon dioxide into sugars.
What enzyme is necessary for the dark reactions?
The enzyme necessary for the dark reactions, also known as the Calvin cycle, is called ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO). It is responsible for fixing carbon dioxide from the atmosphere into a stable organic molecule during photosynthesis.
Which enzyme is used during the Calvin cycle?
The primary enzyme used during the Calvin cycle is ribulose-1,5-bisphosphate carboxylase/oxygenase, commonly known as RuBisCO. This enzyme catalyzes the reaction of carbon dioxide with ribulose-1,5-bisphosphate (RuBP) to form 3-phosphoglycerate (3-PGA), the first stable product of the cycle. RuBisCO plays a crucial role in fixing atmospheric carbon into organic compounds during photosynthesis.
What organisms have the greatest problem with photorespiration?
C3 plants, such as wheat, rice, and soybeans, have the greatest problem with photorespiration due to the inefficiency of the enzyme RuBisCO at fixing carbon dioxide. This leads to loss of energy and resources in the plant.
Which situation best accounts for photorespiratin in plants?
Photorespiration is more likely to occur in plants when the ratio of oxygen to carbon dioxide is high, such as in hot and dry environments. This leads to Rubisco, the enzyme involved in photosynthesis, fixing oxygen instead of carbon dioxide, resulting in the wasteful process of photorespiration.
What antibody class is most abundant in plasma is important in fixing complement and crosses the placenta to provide protection to a newborn?
The antibody class that is most abundant in plasma and is crucial for fixing complement is Immunoglobulin G (IgG). It is also the only antibody class that can cross the placenta, providing passive immunity to the newborn. This transfer of IgG helps protect the infant from infections during the early months of life.
What does rubisco do?
Rubisco is an enzyme involved in carbon fixation during photosynthesis. It catalyzes the first step of the Calvin cycle, where it combines carbon dioxide and ribulose-1,5-bisphosphate (RuBP) to form two 3-phosphoglycerate molecules. This process is essential for plants to convert atmospheric carbon dioxide into organic molecules that can be used for growth and energy production.
