Select the option that contains all plants which produce non-endo

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Identify the incorrect statement about ABA growth regulator

  • It increases the tolerance of plants against different stresses.

  • It acts as general plant growth inhibitor and inhibitor of metabolism.

  • It helps in seed maturation and dormancy.

  • It promotes morphogenesis and differentiation of shoots.


2.

Select the mismatched pair out of the following

  • Rhizome - Dryopteris, Nelumbo nucifera

  • Corm - Crocus sativus, Amorphophallus

  • Sucker -Curcuma domestica, Zingiber officinale

  • Tuber -Helianthus tuberosus, Solanum tuberosum


3.

Some salient features and phyla of organisms are given below. Select the option which shows correct combination of organism, its phylum and salient features.


4.

An example of stretch reflex triggered by passive muscle movement is the

  • tendon reflex

  • ipsilateral reflex

  • flexor reflex

  • patellar reflex


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5.

The figure shows different human tissues labelled as A to D. Which option gives the correct identification of the label, its location and one feature.

  • D-Unicellular glandular epithelium, goblet cells, secrete saliva

  • B-Squamous epithelium, walls of blood vessels, form a diffusion boundary

  • A-Cuboidal epithelium, ducts of glands, secretion and absorption

  • C-Columnar epithelium, lining of stomach, secretion and absorption


6.

Identify the accurate explanation of mesosome. It is

  • a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm

  • the middle layer of the prokaryotic cell wall

  • the organelle of eukaryotic cell which helps in lipid synthesis

  • the middle layer of eukaryotic cell wall.


7.

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms

  • Perianth and no integuments

  • Embryo development and apical meristem

  • Absence of resin duct and leaf venation

  • Presence of vessel elements and absence of archegonia


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8.

Select the option that contains all plants which produce non-endospermic seeds.

  • Gram, Pea, Bean, Groundnut

  • Castor, Peanut, Orchid, Wheat

  • Coconut, Walnut, Wheat, Gram

  • Castor, Maize, Coconut, Orchid


A.

Gram, Pea, Bean, Groundnut

Non-endospermic seeds or exalbuminous seeds have no residual endosperm as it is completely consumed during embryo development. Gram, pea, bean and groundnut have non-endospermic seeds


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9.

Select the option that correctly matches characteristic features with the group of three animals.

  • Skeleton ofspicules ­- Sycon, Adamsia, Spongilla

  • Excretion by flame cells - Taenia, Fasciola, Ancylostoma

  • Mouth contains radula - Dentalium, Octopus, Ophiura

  • Jointed appendages ­- Limulus, Apis, Laccifer


10.

Gerdy fibres are

  • ligament of neck 

  • ligament of ankles

  • ligament of palm

  • ligament of face


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