The energy which is required for life processes is obtained by
A. Hydrolysis of Macromolecules
B. Hydrolysis of food
C. Oxidation of Macromolecules
D. Carboxylation of Macromolecules

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Which of the following is not true?

  1. All the energy required for life processes is obtained by oxidation of some macromolecules that we call food
  2. Only green plants and cyanobacteria can prepare their own food
  3. The result of the photosynthesis is such that the light energy is trapped in the form of mechanical energy
  4. Not all the cells, tissues and organs photosynthesise in green plants
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The following statements are true except

  1. All the food that is respired for the life processes comes from photosynthesise
  2. Carnivores depend indirectly on plants for their food
  3. Saprophytes depend on dead and decaying matter
  4. Respiration is a metabolic process occurs intercellular spaces
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Respiration is

  1. Breaking of a type of bonds like ionic or non ionic of complex compounds through oxidation within the cell by utilizing bulk of energy
  2. Breaking of C-C bonds of simple molecules through hydrolysis within the cell by releasing energy
  3. Breaking of C-C bonds of complex molecules through oxidation within the cell to release considerable amount of energy
  4. Breaking of C-C bonds of complex molecules through hydrolysis within the cell by releasing energy
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Respiratory substrate are the compounds

  1. Which get oxidized during Respiration
  2. Which get hydrolysed during Respiration
  3. Which get reduced during Respiration
  4. Which catalyze the process of Respiration
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Which of the following act as a respiratory substrate under certain conditions in the plant-animal?

  1. Glucose
  2. Starch
  3. Protein
  4. Carbohydrate
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Which of the following act as respiratory substrate under certain conditions in the plant?

  1. Protein
  2. Organic Acid
  3. Fats
  4. All of these
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The energy in Respiration is

  1. Released in a single step
  2. Released in multiple step processes and is trapped in the form of ADP
  3. Released in step wise reactions controlled by ribozymes
  4. Released in step wise reactions controlled by enzymes and is trapped as ATP
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Carbon skeletons produced during respiration is

  1. Used as energy source
  2. Used as precursors for biosynthesis of other molecules in the cell
  3. Used for synthesis of ATP by ATP synthase
  4. Used as remanant of biosynthesis of proteins
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The plants do not breathe can be justified except

  1. Plants do not have sophisticated organs for gaseous exchange
  2. Each plant part takes care of it's own gas-exchange needs
  3. There is huge transport of gases from one plant part to another
  4. Roots, stems and leaves respired at rates far lower than animals do.
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