NEET Biology Photosynthesis in Higher Plants Question Bank

done Assertion and Reason Total Questions - 22

• question_answer1)
  Assertion : \[{{C}_{4}}\]pathway of\[C{{O}_{2}}\]fixation is found in some tropical plants. Reason : In this pathway \[C{{O}_{2}}\]is fixed by 3C compound [AIIMS 1998]
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer2)
  Assertion : Six molecules of\[C{{O}_{2}}\] and twelve molecules of \[NADP{{H}^{+}}+{{H}^{+}}\]and 18 ATP are used to form one hexose molecule. Reason : Light reaction results in formation of \[ATP\]and \[NADP{{H}_{2}}\]  [AIIMS 2002]
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer3)
  Assertion : Rhoeo leaves contain anthocyanin pigments in epidermal cells. Reason : Anthocyanins are accessory photosynthetic pigments. [AIIMS 2003]
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer4)
  Assertion : There is a decrease in photosynthesis, if the photosynthetic cells are illuminated by light of\[{{P}_{680}}\]nm or more wavelength. Reason : In red drop phenomenon the rate of photosynthesis decreases.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer5)
  Assertion : The concentration of\[{{O}_{2}}\]in the atmosphere is inhibitory to photosynthesis. Reason : Oxygen inhibitory effect is due to Warburg effect.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer6)
  Assertion : If\[C{{O}_{2}}\]is increasing continuously, there will be a increase in photosynthesis. Reason : \[C{{O}_{2}}\]is the main substrate of photosynthesis.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer7)
  Assertion : CAM plants lack structural compartmentation of leaf, as found in\[{{C}_{4}}\]plants. Reason : Stomata of CAM plants are open during the day.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer8)
  Assertion : Plants utilizing first RuBP in\[C{{O}_{2}}\] fixations are called \[{{C}_{3}}\]plants. Reason : Plants utilizing first PEP in \[C{{O}_{2}}\]fixations are called \[{{C}_{4}}\]plants.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer9)
  Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species. Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.  [AIIMS 2004]
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer10)
  Assertion : The stromal thylakoids are rich in both PS I and PS II. Reason : The granal membranes are rich in ATP synthetase.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer11)
  Assertion : Cyclic photophosphorylation synthesizes ATP. Reason : ATP synthesise in cyclic photophosphorylation is not associated with NADPH formation.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer12)
  Assertion : Oxidative phosphorylation requires oxygen. Reason : Oxidative photophosphorylation occurs in mitochondria.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer13)
  Assertion : Each molecule of ribulose-1, 5-bisphosphate fixes one molecule of\[C{{O}_{2}}\]. Reason : Three molecules of NADPH and two ATP are required for fixation of one molecule of\[C{{O}_{2}}\].
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer14)
  Assertion : \[C{{O}_{2}}\]is transported from mesophyll cells to bundle sheath of chloroplasts in \[{{C}_{4}}\]plants. Reason : RuBP is called final acceptor of \[C{{O}_{2}}\]in \[{{C}_{4}}\]plants.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer15)
  Assertion : One molecule of \[C{{O}_{2}}\] is fixed to give 686 kcal in photosynthesis. Reason : To form a hexose, six molecules of \[C{{O}_{2}}\]are fixed.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer16)
  Assertion : In the formation of one glucose, 686,000 calories energy are produced. Reason : The energy is provided by a total of 12 NADPH and 18 ATP.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow

• question_answer17)
  Assertion : Sciophytes require higher light intensity than heliophytes. Reason : Sciophytes grow below the canopy of trees.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer18)
  Assertion : The movement of photosynthates is unidirectional. Reason : Movement of photosynthates occurs with the water.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer19)
  Assertion : Plants utilize 5-10% of the absorbed water in photosynthesis. Reason : Reduced leaf hydration decrease the photosynthesis.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer20)
  Assertion : Photorespiration is completed in three cell organelles. Reason : Peroxisomes, glyoxysomes and desmosomes are involved in photorespiration.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer21)
  Assertion : The atmospheric concentration of \[C{{O}_{2}}\]at which photosynthesis just compensates for respiration is referred to as \[C{{O}_{2}}\] compensation point. Reason : The \[C{{O}_{2}}\]compensation point is reached when the amount of \[C{{O}_{2}}\] uptake is less than that generated through respiration because the level of \[C{{O}_{2}}\] in the atmosphere is more than that required for achieving \[C{{O}_{2}}\] compensation point.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
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• question_answer22)
  Assertion : \[{{C}_{4}}\]photosynthetic pathway is more efficient than the \[{{C}_{3}}\]pathway. Reason : Photorespiration is suppressed in \[{{C}_{4}}\] plants.
  A)
  If both the assertion and the reason are true and the reason is a correct explanation of the assertion done clear
  B)
  If both the assertion and reason are true but the reason is not a correct explanation of the assertion  done clear
  C)
  If the assertion is true but the reason is false done clear
  D)
  If both the assertion and reason are false done clear
  E)
  If the assertion is false but reason is true done clear
  View Solution play_arrow