Solved papers for NEET Biology NEET PYQ-Means Of Transport In Plants

done NEET PYQ-Means Of Transport In Plants Total Questions - 9

• question_answer1) The translocation of organic solutes in sieve tube members is supported by: [AIPMT (S) 2006]
  A)
  root pressure and transpiration pull
  done clear
  B)
  P-proteins
  done clear
  C)
  mass flow involving a carrier and ATP
  done clear
  D)
  cytoplasmic streaming
  done clear
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• question_answer2) Transport of food material in higher plants takes place through [AIPMT (M) 2010]
  A)
  companion cells
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  B)
  transfusion tissue
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  C)
  tracheids
  done clear
  D)
  sieve elements
  done clear
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• question_answer3) Which one of the following structures between two adjacent cells is an effective transport pathway? [AIPMT (S) 2010]
  A)
  Plasmodesmata
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  B)
  Plastoquinones
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  C)
  Endoplasmic reticulum
  done clear
  D)
  Plasmalemma
  done clear
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• question_answer4) The chief water conducting elements of xylem in gymnosperms are [AIPMT (S) 2010]
  A)
  vessels
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  B)
  fibres
  done clear
  C)
  transfusion tissue
  done clear
  D)
  tracheids
  done clear
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• question_answer5) Which of the following criteria does not pertain to facilitated transport? [NEET 2013]
  A)
  Requirement of special membrane proteins
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  B)
  High selectivity
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  C)
  Transport saturation
  done clear
  D)
  Uphill transport
  done clear
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• question_answer6) Transpiration and root pressure cause water to rise in plants by [NEET [C] 2015]
  A)
  pulling it upward
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  B)
  pulling and pushing it, respectively
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  C)
  pushing it upward
  done clear
  D)
  pushing and pulling it, respectively
  done clear
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• question_answer7) In a ring girdled plant [NEET [C] 2015]
  A)
  the shoot dies first
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  B)
  the root dies first
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  C)
  the shoot and root die together
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  D)
  Neither root nor shoot will die
  done clear
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• question_answer8) Which one gives the most valid and recent explanation for stomatal movements? [NEET [C] 2015]
  A)
  Transpiration
  done clear
  B)
  Potassium influx and efflux
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  C)
  Starch hydrolysis
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  D)
  Guard cell photosynthesis
  done clear
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• question_answer9) Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomata opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options: [NEET - 2016 Phase-I]
  A)
  Both processes cannot happen simultaneously
  done clear
  B)
  Both processes can happen together because the diffusion coefficient of water and \[C{{O}_{2}}\] is different
  done clear
  C)
  The above processes happen only during night time
  done clear
  D)
  One process occurs during day time, and the other at night
  done clear
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