Which one of the following pairs is wrongly matched? from Biolo

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

How many organisms in the list given below are autotrophs?
Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Sacharomyces, Trypanosoma, Porphyra, Walfia.

  • Four

  • Five

  • Six

  • Six

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2.

Read the following five statements and answer as asked to them
I. In Equisetum the female gametophyte is retained on the parent sporophyte.
II. In Ginkgo male gametophyte is not independent.
III. The sporophyte in Riccia is more developed than that in Polytrichum.
IV.  Sexual reproduction in Volvox is isogamous.
V. The spores of the above statements are correct?

  • Two

  • Three

  • Four

  • Four

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3.

Which one of the following pairs is wrongly matched?

  • Ginkgo – Archegonia

  • Salvinia – Prothallus

  • Viroids – RNA

  • Viroids – RNA


B.

Salvinia – Prothallus

Salvinia is a heterosporoues water fern. The microsporangia and megasporangia are borne within special reproductive structure called sporocarps. These are borne terminally in clusters on the segment of submerged leaves. Sporocarps are strictly monosporangiate, i.e., they bear either only microsporangia or megasporangia.
Viroids are single stranded RNA molecules. The female reproductive organ is archegonia in gymnosperms.

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4.

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in

  • Protista

  • Algae

  • Plantae

  • Plantae

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5.

For its activity, carboxypeptidase requires

  • Zinc

  • Iron

  • Niacin

  • Niacin

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6.

Which one of the following structures is an organelle within an organelle?

  • Ribosome

  • Peroxisome

  • ER

  • ER

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7.

Which one of the following organisms is correctly matched with its three characteristics?

  • Pea: C3 pathway, Endospermic seed, Vexillary aestivation

  • Tomato: Twisted aestivation, Axile placentation, Berry

  • Onion: Bulb, Imbricate aestivation, Axile placentation

  • Onion: Bulb, Imbricate aestivation, Axile placentation

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8.

How many plants in the list given below have marginal placentation?
Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin

  • Four

  • Five

  • Six

  • Six

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9.

Read the following four statements:
I. Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
II. In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.
III. Stamens in flowers of Gloriosa and Petunia are polyandrous.
IV. Symbiotic nitrogen fixers occurs in free-living state also in soil. 

How many of the above statements are right 

  • Two

  • Three

  • Four

  • Four

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10.

Through their effect on plant growth regulators, what do the temperature and light control in the plants?

  • Apical dominance

  • Flowering

  • Closure of stomata

  • Closure of stomata

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