CBSE Questions for Class 11 Medical Biology Photosynthesis In Higher Plants Quiz 17 - MCQExams.com

Which group of plant are not benefited by $$CO_2$$ fertilisation effect?
  • Plant requiring 3 ATP per $$CO_2$$ fixation
  • Plant with kranz anatomy
  • Plant having high rate of photorespiration
  • Plant having single carboxylation
Number of cell organelles involved in photorespiration are
  • One
  • Two
  • Three
  • Four
Dark reaction involves utilisation of $$CO_2$$ in producing $$C_6H_12O_6(Glucose)$$. Why is this phase called dark reaction?
  • The dark reaction is not dependent on light
  • It occurs simultaneously with the light reaction
  • In this process, ATP and NADP molecules formed in light reaction enter in to dark reaction
  • All of the above.
During phenomenon of photorespiration the oxygen consuming steps occurs at
  • Chloroplast and mitochondria
  • Mitochondria and peroxisome
  • Peroxisome and chloroplast
  • Only chloroplast
In $$C_4$$  plants additional ATP.s consumed in
  • Reduction of PGA
  • Regeneration of RUBP
  • Regeneration of PEP
  • Regeneration of OAA
Amount of assimilatory power required to produce 2 molecules of sucrose in a $$C_4$$ plant is 
  • 30 ATPand 12 NADPH
  • 60 ATP and 24 NADPH
  • 36 ATP and 24 NADPH
  • 120 ATP and 48 NADPH
Among the following the strongest oxidant is 
  • $$P680^+$$
  • $$H_2O$$
  • $$P700^+$$
  • $$P700$$
How many quanta of light are required per NADPH formation?
  • 8 quanta
  • 16 quanta
  • 4 quanta
  • 2 quanta
Product (s) of $$Z-scheme$$ which is/are utilise in calvin cycle, is/are:
  • Only $$ATP$$
  • $$ATP,NADPH$$ and $$O_2$$
  • $$ATP$$ and $$NADPH$$
  • Only$$O_2$$
Primary carboxylating enzyme in $$C_4$$ plant is found in __________________.
  • Chloroplast of mesophyll cells
  • Cytoplasm of mesophyll cell
  • chloroplast of bundle sheath cells
  • Cytoplasm of bundle sheath cells
Why does the total amount of $$CO_2$$ in the atmosphere remains constant even though respiration liberates $$CO_2$$?
  • $$CO_2$$ acts as a buffer
  • $$CO_2$$ is converted to carbohydrates in photosynthesis
  • $$CO_2$$ forms carbonic acid
  • $$CO_2$$ undergoes cleavage during photosynthesis.
How many ATP equivalents are required to produce one glucose in $$C_4$$ plants?
  • $$66ATP$$
  • $$54 ATP$$
  • $$18 ATP$$
  • $$93ATP$$
How many turns of Calvin cycles are required for the production of one molecule of glucose and fructose respectively?
  • $$6, 6$$
  • $$6, 12$$
  • $$12, 3$$
  • $$12, 6$$
Photorespiration takes place in?
  • Chloroplast
  • Mitochondria
  • Peroxisome
  • All of the above
How many plants are $$C_4$$ plant?
Amaranthus, Sugarcane, Maize, Sorghum, Opuntia, Euphorbia, Wheat, Rice.
  • $$8$$
  • $$6$$
  • $$5$$
  • $$4$$
The correct sequence of flow of electrons in Z-scheme during photosynthesis is?
  • $$H_2O \rightarrow PS I \rightarrow ETS \rightarrow PS II \rightarrow NAD^+$$
  • $$PS II \rightarrow H_2O \rightarrow ETS \rightarrow PS I \rightarrow NAD^+$$
  • $$H_2O \rightarrow PS II \rightarrow ETS \rightarrow PS I \rightarrow NADP^+$$
  • $$ETS \rightarrow PS II \rightarrow PS I \rightarrow H_2O$$
Number of ATP and NADPH$$+$$H$$^+$$ required to synthesise one glucose in Sorghum respectively.
  • $$18, 12$$
  • $$3, 2$$
  • $$5, 2$$
  • $$30, 12$$
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