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The minerals involved in the photolysis of water are
(1) manganese (2) calcium
(3) magnesium (4) chloride

A
A and B only

B
A, B and D only

C
A, B and C only

D
C and D only

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Text SolutionText solutionverified iconVerified

A) Mn and Ca are involved in the photolysis of water.
B) Mn, Cl and Ca are involved in the photolysis of water.
C) Mg is not involved in the photolysis of water while Cl is involved.
D) Mn and Ca are involved in the photolysis of water. but Mg is not involved.
So the correct answer is 'a, b, d'.
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13.3 WHERE DOES PHOTOSYNTHESIS TAKE PLACE? You would of course answer: in 'the green leaf or you may add, 'in the chloroplasts' based on what you earlier read in Chapter 8 . You are definitely right. Photosynthesis does take place in the green leaves of plants but it does so also in other green parts of the plants. Can you name some other parts where you think photosynthesis may occur? You would recollect from previous unit that the mesophyll cells in the leaves, have a large number of chloroplasts. Usually the chloroplasts align themselves along the walls of the mesophyll cells, such that they get the optimum quantity of the incident light. When do you think the chloroplasts will be aligned with their flat surfaces parallel to the walls? When would they be perpendicular to the incident light? You have studied the structure of chloroplast in Chapter 8 . Within the chloroplast there is the membranous system consisting of grana, the stroma lamellae, and the fluid stroma (Figure 13.2). There is a clear division of labour within the chloroplast. The membrane system is responsible for trapping the light energy and also for the synthesis of ATP and NADPH. In stroma, enzymatic reactions incorporate into the plant leading to the synthesis of sugar, which in turn forms starch. The former set of reactions, since they are directly light driven are called light reactions. of light reactions (ATP and NADPH). Hence, to distinguish the latter they are called, by convention, as dark reactions. However, this should not be construed to mean that they occur in darkness or that they are not lightdependent. Figure 13.2 Diagrammatic representation of an electron micrograph of a section of chloroplast
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Question Text
The minerals involved in the photolysis of water are
(1) manganese (2) calcium
(3) magnesium (4) chloride
TopicMineral Nutrition
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes81