Multiple Choice Questions

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The incomplete breakdown of sugars in anaerobic respiration results in the formation of

  • fructose and water

  • glucose and CO2

  • alcohol and CO2

  • water and CO2


C.

alcohol and CO2

The anaerobic respiration occurs in many bacteria, some fungi, germinating seeds, some fruits and during exergenous exercise. It involves the incomplete breakdown of sugars forming C2H5OH and CO2 as end products and 27 kcal energy is released.


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The most important force which pulls water up in tall trees is

  • imbibition force

  • osmotic force

  • cohesive force

  • electromagnetic force


The amphibians of plant kingdom are

  • algae 

  • bryophytes

  • thallophytes 

  • floating plants


The law of limiting factors for photosynthesis was enunciated by

  • R. Hill

  • Calvin

  • Krebs

  • Blackman


The light phase of photosynthesis is called

  • Hill reaction

  • photo action

  • pigment action

  • chlorophyllous process


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The plant Cuscuta shows maximum photosynthesis in

  • red light

  • blue light

  • green light

  • no photosynthesis at all


Who said that 'transpiration is a necessary evil'

  • Curtis

  • Andersen

  • Steward

  • J.C. Bose


Which of the following exhibits a direct porportionality to transpiration

  • Light and RH

  • Temperature and RH

  • Temperature and wind

  • RH and wind


Water in plants is transported by

  • cambium

  • phloem

  • xylem

  • epidermis


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Transpiration would be lowest when

  • wind velocity is high

  • enough water is in the soil

  • atmospheric RH is high

  • high temperature and light