Photosensitive compound in human eye is made up of from Biology

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

1.

Microtubules are the constituent of

  • spindle fibres, centrioles and cilia

  • centrioles, spindle fibres and chromatin

  • centrosome, nucleosomes and centrioles

  • centrosome, nucleosomes and centrioles

10482 Views

2.

Mitochondria and choloroplast are :
I. semi-autonomous organelles.
II. formed by division of pre-existing  organelles and they contain DNA but lack protein synthesizing machinery. 

  • II is true but I is false

  • I is true but II is false

  • Both I and II are false

  • Both I and II are false

2617 Views

Advertisement

3.

Photosensitive compound in human eye is made up of

  • opsin and Retinal

  • opsin ans Retinol

  • transducin and Retinene

  • transducin and Retinene


A.

opsin and Retinal

The photosensitive pigment Rhodopsin of the human eye is made up of opsin and Retinal ( the aldehyde form of vitamin-A/ Retinol). 

2998 Views

Advertisement
4.

Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom

  • Protista

  • Fungi

  • Animalia

  • Animalia

2220 Views

Advertisement
5.

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the 

  • thermoacidophiles

  • methanogens

  • eubacteria

  • eubacteria

1842 Views

6.

Which of the following characteristic features always holds true for the corresponding group of animals?

  • Viviparous Mamalia
  • Posess a mouth with an upper and lower jaw Chordata
  • 3-chmbered heart with one incompletely divided ventricle Reptilia
  • Cartiliginous- endoskeleton Chondrichthyes
2555 Views

7.

Tricarpellary, syncarpous gynoecium is found in flowers of

  • Solanaceae

  • Fabaceae

  • Poaceae

  • Poaceae

2093 Views

8.

In which of the following, all three are macronutrients

  • Iron, copper, molybdenum

  • Molybdenum, magnesium, manganese

  • Nitrogen, nickel, phosphorous

  • Nitrogen, nickel, phosphorous

2473 Views

Advertisement
9.

Reduction in pH of blood will

  • reduce the blood supply to the brain

  • decrease the affinity of haemoglobin with oxygen

  • release bicarbonate ions by the liver

  • release bicarbonate ions by the liver

2760 Views

10.

Lack of relaxation between successive stimuli in sustained muscle contraction is known as

  • fatigue

  • tetanus

  • tonus

  • tonus

3705 Views

Advertisement