Please refer to Assignments Class 11 Biology Photosynthesis in Higher Plants Chapter 13 with solved questions and answers. We have provided Class 11 Biology Assignments for all chapters on our website. These problems and solutions for Chapter 13 Photosynthesis in Higher Plants Class 11 Biology have been prepared as per the latest syllabus and books issued for the current academic year. Learn these solved important questions to get more marks in your class tests and examinations.
Photosynthesis in Higher Plants Assignments Class 11 Biology
Question. Which of the following is not a plant factor regulating photosynthesis ?
(a) Age of leaf
(b) Number of mesophyll cells
(c) Atmospheric CO2 concentration
(d) Amount of chlorophyll
Answer
C
Question. The productivity is better in C4 plants because :
(a) they increase the intracellular concentration of CO2 in mesophyll cells
(b) in these plants RuBisCO has much greater affinity for O2 than for CO2
(c) these plants can prevent competitive binding phenomena related to RuBisCO
(d) these plants minimise the carboxylase activity of RuBisCO
Answer
C
Question. During photosynthesis, plants mainly utilise the red and blue regions of visible spectrum, for the first time it was concluded by :
(a) Jan Ingenhousz
(b) Joseph Priestley
(c) T.W. Engelmann
(d) Cornelius Van Niel
Answer
C
Question. Which of the following is not special about C4 plants?
(a) Responsiveness to high light intensities
(b) Lack of photorespiration
(c) Greater productivity
(d) Scotoactive stomata
Answer
D
Question. The dark reactions of the photosynthesis :
(a) occur in darkness
(b) are not light dependent
(c) are not directly light driven
(d) occur in membrane system of chloroplast
Answer
C
Question. What is the correct ratio of ATP utilisation in steps of Calvin cycle?
(a) Reduction : Regeneration :: 1 : 1
(b) Reduction : Regeneration :: 2 : 1
(c) Reduction : Regeneration :: 2 : 2
(d) Reduction : Regeneration :: 1 : 2
Answer
B
Question. The membrane system of chloroplast is responsible for :
(a) Trapping the light energy
(b) Synthesis of ATP & NADPH
(c) Enzymatic reactions for CO2 incorporation
(d) Both (a) and (b)
Answer
D
