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451.

Which of the following is the tallest tree of the worldA. CycasB. PinusC. SequoiaD. Cedrus.

Answer» Correct Answer - C
452.

Which is a phaeophycean algaA. GelidiumB. PolysiphoniaC. PorphyraD. Laminaria

Answer» Correct Answer - D
453.

Choose the correct order of colours with respect to pigments, chlorophyll,phycoerythrin and fucoxanthinA. Green, brown and redB. Green, red and brownC. Brown, green and redD. Red, green and brown

Answer» Correct Answer - B
454.

Accessory photosynthetic pigments, phycoerythrin and phycocyanin, occur inA. Red algaeB. Green algaeC. Brown algaeD. All the above.

Answer» Correct Answer - A
455.

One of the following is of considerable economic importanceA. MarchantiaB. RicciaC. FunariaD. Sphagnum.

Answer» Correct Answer - D
456.

Vessels and Companion cells are characteristics ofA. AngiospermsB. GymnospermsC. PteridophytesD. Viruses.

Answer» Correct Answer - A
457.

In Funaria, annulus separatesA. Apophysis and thecaB. Theca and OperculumC. Columella and apophysisD. Operculum and apophsis.

Answer» Correct Answer - B
458.

Annulus occurs inA. Annual plantsB. MossesC. Both mosses and fernsD. Gymnosperms.

Answer» Correct Answer - C
459.

Maiden Hair Fern isA. DryopterisB. PterisC. AdiantumD. Selaginella.

Answer» Correct Answer - C
460.

Maiden Hair Fern isA. PterisB. DryopterisC. AdiantumD. Marsilea.

Answer» Correct Answer - C
461.

Amphiphloic siphonostele/solenostele occurs in the stem ofA. LycopodiumB. EquisetumC. PterisD. Marsilea.

Answer» Correct Answer - D
462.

A pteridophyte having pyrenoid in its chloroplasts isA. PteridiumB. SelaginellaC. EquisetumD. Marsilea.

Answer» Correct Answer - B
463.

Pyrenoid consists ofA. Starch around proteinB. Protein around starchC. Protein onlyD. Starch only.

Answer» Correct Answer - A
464.

A character present in coralloid roots and absent in dicot roots isA. Algal zoneB. XylemC. CortexD. Pith.

Answer» Correct Answer - A
465.

Coralloid roots of Cycas are useful inA. Fixation and absorption of nitrogenB. Absorption of waterC. Absorption of mineralsD. Respiration.

Answer» Correct Answer - A
466.

Select the correct statementA. Bryophyta are vascular non-flowering plantsB. Algae are nonvascular phanerogamsC. Gymnosperms are nonvascular seed bearing plantsD. Angiosperms are vascular seed bearing plants

Answer» Correct Answer - D
467.

Gymnosperms differ from pteridophytes (gymnosperms are characterised by)A. Naked ovuleB. Circinate ptyxisC. Leaf arrangementD. Gametophyte.

Answer» Correct Answer - A
468.

Pinus differs from Mango in havingA. Tree habitB. Green leavesC. Ovules not enclosed in ovaryD. Wood.

Answer» Correct Answer - C
469.

Parasitic alga is-Tea and Coffee leaves are infected byA. CephaleurosB. SargassumC. OedogoniumD. Ulothrix.

Answer» Correct Answer - A
470.

Evidence for aquatic ancestry of bryophytes isA. Gametophytic plant bodyB. Ciliated spermsC. Peristome teethD. All the above.

Answer» Correct Answer - B
471.

Red rust of tea is caused byA. RhizopusB. PucciniaC. CephaleurosD. Phytophthora.

Answer» Correct Answer - C
472.

Spirogyra belongs to the classA. RhodophyceaeB. CyanophyceaeC. XanthophyceaeD. Chlorophyceae.

Answer» Correct Answer - D
473.

Maximum number of chloroplasts in a single cell of Spirogyra isA. FourB. SixteenC. OneD. Six.

Answer» Correct Answer - B
474.

Chloroplasts of Spirogyra are coiledA. Vertically and left handedB. Vertically and right handedC. Transversely and left handedD. Transversely and right handed.

Answer» Correct Answer - B
475.

Isogamous condition with nonflagellated gametes is found inA. FucusB. ChlamydomonasC. SpirogyraD. Volvox.

Answer» Correct Answer - C
476.

The cell wall of Spirogyra is made up ofA. CelluloseB. LigninC. ChitinD. Suberin.

Answer» Correct Answer - A
477.

Plant group in which every cell of gametangium forms gametes isA. ThallophytaB. BryophytaC. PteridophytaD. Gymnosperms.

Answer» Correct Answer - A
478.

A spore of Spirogyra sp. after resting period isA. DiploidB. HaploidC. ZoosporesD. Aplanospores.

Answer» Correct Answer - B
479.

In which of the following elater mother cells and spore mother cells belong to same generationA. MarchantiaB. RebouliaC. RiccardiaD. Dryopteris.

Answer» Correct Answer - A
480.

The species of Pinus, seeds of which are edible is/chilgoza comes fromA. P. roxburghiiB. P. gerardianaC. P. monophyllaD. P. sylvestris.

Answer» Correct Answer - B