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Professor Danielle conducts an experiment on chloroplasts by deactivating several enzymes used for light-independent reactions. All components of light-independent reactions remain present. Would the light-dependent reactions proceed normally? Explain.



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eyitbay

Answer:

NO.

Explanation:

The process of reaction of CO2 with H20 in the presence of enzyme, chlorophyll and sunlight is called photosynthesis. It has two stages: It is referred to as light dependent stage when it occurs during the day and light independent stage when it occurs at night.

The primary enzyme likely to  be deactivated by the Professor is ribulose bisphosphate  Carboxylate Rubisco. This is the most important enzyme in plants that catalysis the fixation of Co2  with 5C- ribulose bisphosphate  Carboxylase (RuBP) to form3C -Glycerite -3-phospate.(GP).

The GP is reduced by NADP with ATP to form Triose Phosphate (TP). This is the point of glucose production in plants,

The majority of the TP is used for RuBP, hexose phosphates  for starch productions, fatty acid and glycerol for cell membrane.  Amino acids are also produced from TP. This is known s Calvin Cycle.

If the enzyme Rubisco is deactivated, the above process cannot occur, thus the basic macronutrients and enzymes  for the survival of plants for photosynthesis(light dependent stage)  can not occur.

Nyctalus

Answer:

No, the reaction will not take place normally.

Explanation:

  • Chloroplasts serves as a site for photosynthesis in plants. The process of photosynthesis which is essential for plants to make food occurs in two elaborate reactions namely:
  1. Light-dependent Reaction: Where chlorophyll takes energy from the sunlight and preserves it as chemical energy
  2. Light-independent Reaction: Which occurs after light-dependent where the energy is used from the light-dependent reaction to synthesize CO2 into carbohydrates.
  • The Light-independent reaction occurs in the stroma in the presence of CO2; Ribulose-1,5-biphosphate ( RuBP) and an enzyme called (RuBisCO) Ribulose-1,5-biphosphate carboxylase/oxygenase which catalyzes the process.
  • If Professor Danielle deactivates RuBisCO then the process of Calvin Cycle results in the end product of glucose by the process of fixation, reduction, and regeneration. The process will immediately cease depriving the plant of all the essential macronutrients produced as the end result of the Calvin cycle i.e., glucose, starch, amino acid, and fatty acid.
  • This deprivation of nutrients will eventually affect the synthesis of ATP and formation of NADPH as food deprivation would affect the normal functioning of cell organelles.

For more information:

https://brainly.com/question/9814017

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