Subject

Biology

Class

NEET Class 12

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

21.

Electrons used in electron microscope are of the wavelength

  • 0.05 Å

  • 0.15 Å

  • 0.25 Å

  • 0.30 Å


Advertisement

22.

Example of water soluble plant pigment is

  • chlorophyll- a

  • chlorophyll- b

  • anthocyanin

  • xanthophyll


C.

anthocyanin

Anthocyanin is a water-soluble pigment. It constitute a class of natural phenolic product. These provide colour to petals and fruits.

Chlorophyll is a green pigment in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis.

Chlorophyll- a is the primary photosynthetic pigment and chlorophyll- b is the accessory pigment that collects energy and passes it on to chl- a.

Xanthophyll is a yellow or brown carotenoid plant pigment which causes the autumn colours of leaves.


Advertisement
23.

Inulin is a polymer of

  • glucose

  • galactose

  • fructose

  • arabinose


24.

Mannitol is

  • amino acid

  • amino alcohol

  • sugar alcohol

  • sugar acid


Advertisement
25.

A flower which can be divided into two equal halves by only one plane is

  • zygomorphic

  • actinomorphic

  • regular

  • perfect


26.

VAM is

  • symbiotic bacteria

  • saprophytic bacteria

  • saprophytic fungi

  • symbiotic fungi


27.

A plant cell becomes turgid due to

  • plasmolysis

  • exosmosis

  • endosmosis

  • electrolysis


28.

Spindle fibre is made up of

  • humulin

  • intermediate filament

  • flagellin

  • tubulin


Advertisement
29.

Edible part of mushroom is

  • basidiocarp

  • primary mycelium

  • fungal hyphae

  • basidiospores


30.

Calcium level decreases in the blood due to hyposecretion of

  • parathyroid hormone

  • calcitonin

  • thyroxine

  • adrenaline


Advertisement