Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Photosynthesis in Higher Plants question

2003 · Q3
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Photosynthesis in Higher Plants
  5. /2003 · Q3

Photosynthesis in Higher Plants question

2003 · Q3

NEETBiologyPhotosynthesis in Higher PlantsMCQ+4 / −1
Which element is located at the centre of the porphyrin ring in chlorophyll?
  1. A
    Calcium
  2. B
    Magnesium
  3. C
    potassium
  4. D
    Manganese
View written solutionFree

Correct answer: B

Chlorophyll is the green pigment present in plants and some photosynthetic bacteria. The empirical formula of chlorophyll-a molecule is C55H72O5N4Mg. It consist of a porphyrin head and a phytol tail. Porphyrin is a cyclic tetrapyrrole structure, having a magnesium atom in the centre. Tail consists of phytol alcohol and it is attached with one of the pyrrole rings.

PreviousNext

More from Photosynthesis in Higher Plants

  • In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is2003 · MCQ
  • Stomata of CAM plants2003 · MCQ
  • Which one of the following is wrong in relation to photorespiration?2003 · MCQ
  • Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?2003 · MCQ
  • Which one of the following concerns photophosphorylation?2003 · MCQ
  • In photosynthersis energy from light reaction to dark reaction is transferred in the form of2002 · MCQ
  • Which of the following absorb light energy for photosynthesis?2002 · MCQ
  • Which pigment absorbs the red and far-red light?2002 · MCQ