How many genome types are present in a typical green plants cell

• More than five

• More than ten

• Two

• Three

Assertion : Algae and fungi are classified as thallophytes.

Reason : They both are autotrophs.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false

Assertion : Conifer trees produce a large quantity of wind borne pollen grains.

Reason : The pollen grains have wings.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false

• seed plants showing abnormal forms of growth and development

• plants described only in fossil state

• plants described in the literature but which Bentham and Hooker did not see in original

• a few orders which could not be placed satisfactorily in the classification.

Which one of the following is correct matching of a plant, its habit and the forest type where it normally occurs?

• Prosopis, tree, scrub

• Saccharum, grass, forest

• Shorea robusta, herb, tropical rain forest

• Acacia catechu, tree, coniferous forest

Which one of the following categories of organisms do not evolve oxygen during photosynthesis

• Red algae

• Photosynthetic bacteria

• C₄ plants with Kranz anatomy

• Blue green algae

In Ulothrix meiosis takes place in

• cells of the filament

• holdfast

• zygote

• zoospores.

Mossess and ferns are found in moist and shady places because both

• require presence of water for fertilization

• do not need sunlight for photosynthesis

• depend for their nutrition on microorganisms which can survive only at low temperature

• cannot compete with sun-loving plants.

169.

People recovering from long illness are often advised to include the alga Spirulina in their diet because it

• makes the food easy to digest

• is rich in proteins

• has antibiotic properties

• restores the intestinal microtlora

Azolla is used as a biofertilizer because it

• multiplies very fast to produce massive biomass

• has association of nitrogen - fixing Rhizobium

• has association of nitrogen - fixing cyanobacteria

• has association of mycorrhiza