Q.1
Identify X, Y and Z in the table given below:
Classes Major pigments Stored food Flagella
Chlorophyceae Chlorophyll a and b Y 2 – 13, equal, apical
Phaeophyceae X Mannitol, Laminarin 2, unequal, lateral
Rhodophyceae Chlorophyll a and c Floridean starch Z
  • a) X – Fucoxanthin, Y – Starch, Z – 2 – 8 flagella.
  • b) X – Phycobilins, Y – Mannitol, Z – Flagella absent.
  • c) X – Chlorophyll e, Y – Laminarin, Z – 2 flagella.
  • d) X – Chlorophyll a and c, Y – Starch, Z – Flagella absent.
Q.2
Study the following characters carefully and give the most correct answer with respect to their function:
  Gemma Endosperm
(A) For asexual reproduction For nutrition of developing embryo
(B) For sexual reproduction For embryo formation
(C) For vegetative propagation For formation of male gametes
(D) For giving nutrition For giving protection
  • a) A
  • b) B
  • c) C
  • d) D
Q.3
Identify the structures marked a –c for Marchantia:
unit-1_ch-6_que_no-327_img_no1.png
  • a) a – Antheridiophore, b – Protonema, c – Rhizoids.
  • b) a – Sporophyte, b – Gemma cup, c – Rhizoids.
  • c) a – Sporophyte, b – Protonema, c – Rhizoids.
  • d) a – Archegoniophore, b – Gemma cup, c – Rhizoids.
Q.4
Identify the pteridophyte and structure marked as X:
unit-1_ch-6_que_no-328_img_no1.png
  • a) Equisetum, X – Strobilus/cone.
  • b) Equisetum, X – antheridia.
  • c) Equisetum, X – Archegonia.
  • d) Equisetum, X – Microsporangium.
Q.5
Refer the given flow chart regarding different groups of plant kingdom: Which of the following is true regarding P, Q, R, S and T?
unit-1_ch-6_que_no-329_img_no1.png
  • a) Examples of group P includes Riccia, Marchantia, Sphagnum, etc.
  • b) Members of group R can be both heterosporous and homosporous.
  • c) Group Q includes seedless vascular plants which have a sporophytic plant body.
  • d) Group S is more ancient than group T and formed as a dominant vegetation on earth.
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