Choose the option representing the incorrect match of different feature of major classes of algae.

• Class	Cell wall	Dominant pigment
  Chlorophyceae	Cellulose + pectic material	Chl a and b, $\mathrm{\alpha }$ and $\mathrm{\beta }$ carotene

• Phaeophyceae

  Silica + pectic material

  Chl a and c, $\mathrm{\beta }$ carotene

• Rhodophyceae

  Pectic material + cellulose

  Chl a and d, carotene

• Cyanophyceae

  Mucopeptide + Mumaric acid

  Chl a, $\mathrm{\beta }$ carotene

Select the mismatch

• Algae	Thallus
  Chalamydomonas	Unicellular flagellate

• Chlorella

  Unicellular non flagellate

• Ulva	Parenchymatous

• Volvox

  Non- flagellate colonies

What did Engelmann observe from his prism experiments?

• Bacteria could not detect the sites of O₂ evolution.

• Bacteria release excess carbon dioxide in red and blue light

• Bacteria accumulated due to the increase in temperature caused by increase in oxygen concentration

• Bacteria get accumulated towards red and blue light

Which of the following has the largest number of chomosomes?

• Haplopappus gracilis

• Gaint redwood tree

• Pisum sativum

• Ophioglossum reticulatum

Arrange the following plants in descending order based on the number of locules in their ovaries.

I. Anacardium

II. Citrus

III. Asparagus

IV. Solanum

• II, III, IV, I

• III, I, IV, II

• IV, III, I, II

• I, IV, III, I

Study the following Columns.

• A - 2; B - 3; C - 1; D - 5

• A - 3; B - 2; C - 4; D - 5

• A - 2; B - 1; C - 3; D - 5

• A - 3; B - 1; C - 5; D - 4

Identify the character which is absent in Fucus.

• Hetrogametes

• Oogamy

• Non-flagellated male gamates

• Holdfast

Which of the following pair of characters distinguish Gnetum from Cycas and Pinus?

• Abscence of resin duct and leaf venation

• Prasence of vessel elements and absence of archegonia

• Perianth and two integuments

• Embryo development and apical meristem

Which one of the following classesis not a representative of green-algae?

• Chlorophyceae

• Charophyceae

• Euglenophyceae

• Crysophyceae

'Sagopalm' is obtained from

• Pinus

• Cycas

• Ginkgo

• Datepalm