Chemistry of Natural Drugs: Plant Sources and Metabolism

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Questions and Answers

Which type of metabolites are formed by photosynthesis process?

  • Tertiary metabolites
  • Quaternary metabolites
  • Primary metabolites (correct)
  • Secondary metabolites

From which pathways are secondary metabolites biosynthetically derived?

  • Calvin cycle pathway and Pentose phosphate pathway
  • Shikimic acid pathway and Acetate mevalonate pathway (correct)
  • Glycolysis pathway and Citric acid cycle pathway
  • Electron transport chain pathway and Oxidative phosphorylation pathway

In which type of metabolites are sugars, amino acids, fatty acids, and nucleic acids categorized?

  • Quaternary metabolites
  • Primary metabolites (correct)
  • Secondary metabolites
  • Tertiary metabolites

Where are secondary metabolites found in the cells of the plant?

<p>In a small concentration (A)</p> Signup and view all the answers

What is the main function of the light reactions in photosynthesis?

<p>Production of NADPH and ATP (B)</p> Signup and view all the answers

Which compound is the first organic compound produced from photosynthesis?

<p>PGA (3-phosphoglyceric acid) (A)</p> Signup and view all the answers

What role does Ribulose diphosphate carboxylase play in photosynthesis?

<p>Conversion of carbon dioxide to sugar (D)</p> Signup and view all the answers

What is the main transport material in plants formed during photosynthesis?

<p>Sucrose (A)</p> Signup and view all the answers

What is the main function of the dark reactions in photosynthesis?

<p>Utilize the energy from light reactions to fix carbon dioxide into sugar (C)</p> Signup and view all the answers

Which compound is the first bond sugar formed during the Calvin cycle in photosynthesis?

<p>Fructose-6-phosphate (D)</p> Signup and view all the answers

What is the role of Ribulose diphosphate carboxylase (RUBISCO) in photosynthesis?

<p>Conversion of carbon dioxide into sugar during the dark reactions (C)</p> Signup and view all the answers

Which organic compound is the first product of photosynthesis?

<p>3-phosphoglyceric acid (PGA) (C)</p> Signup and view all the answers

What is a distinguishing property of primary metabolites?

<p>They are formed by the process of photosynthesis (B)</p> Signup and view all the answers

Which pathway is responsible for the biosynthesis of secondary metabolites?

<p>Shikimic acid pathway (B)</p> Signup and view all the answers

What distinguishes secondary metabolites from primary metabolites?

<p>They are not a source for energy (D)</p> Signup and view all the answers

What is the ecological role of secondary metabolites?

<p>Protection against herbivores and pathogens (B)</p> Signup and view all the answers

What differentiates primary metabolites from secondary metabolites?

<p>Primary metabolites are a source of energy while secondary metabolites are not a source for energy. (B)</p> Signup and view all the answers

In which pathways are secondary metabolites biosynthetically derived from primary metabolites?

<p>Shikimic acid pathway and Acetate mevalonate pathway (D)</p> Signup and view all the answers

What is the main function of secondary metabolites in a plant?

<p>Ecological role (B)</p> Signup and view all the answers

Where are primary metabolites found in the cells of the plant?

<p>Found in high concentration in the cells (D)</p> Signup and view all the answers

What is the primary function of the Calvin cycle in photosynthesis?

<p>To fix carbon dioxide into sugar (C)</p> Signup and view all the answers

What is the role of Ribulose diphosphate carboxylase (RUBISCO) in photosynthesis?

<p>To catalyze the reaction of carbon dioxide with ribulose 1,5-phosphate in the dark reactions (D)</p> Signup and view all the answers

Which compound is the first organic compound produced from photosynthesis?

<p>PGA (3-phosphoglyceric acid) (B)</p> Signup and view all the answers

What differentiates the light reactions from the dark reactions in photosynthesis?

<p>The light reactions produce NADPH and ATP, while the dark reactions fix carbon dioxide into sugar (B)</p> Signup and view all the answers

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