Home
Class 11
BIOLOGY
Good vision depends on adequate intake o...

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements.
(a) Vitamin A derivatives are formed from carotene
(b) The photopigments are embedded in the membrane discs of the inner segment
(c) Retinal is a derivative of Vitamin A.
(d) Retinal is a light absorbing part of all the visual photopigments

A

a, c and d

B

a and c

C

b, c and d

D

a and b

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS

    CENGAGE BIOLOGY ENGLISH|Exercise Archives|41 Videos

  • NEET 2018 PAPER

    CENGAGE BIOLOGY ENGLISH|Exercise MCQ|48 Videos

Similar Questions

Explore conceptually related problems

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Mechanism of vision includes following steps in random order A. Generates action potential in ganglionic cells through the bipolar cells. B. Membrane permeabilities of rods and cones change. C. Light induces dissociation of retinal from opsin. D. Activation of photopigment of rods and cones. E. Light rays focussed on the retina. F. Potential differences generated in photoreceptor cells. G. Image formed on retina is recognized by the brain. H. Action potentials are transmitted by optic nerve to the visual cortex of brain. The correct sequence is

The steps involved in the mechanism of vision are given below. Arrange them in proper sequence and select the correct option. A. Dissociation of retinal from opsin and generation of potential difference in photoreceptor cells. B. Focusing of the light rays in visible wavelength on the corner through the lens. C. Generation of the action potential in ganglion cells through bipolar cells. D. Analysis of neural impulse and formation of aa image on the retina. E. Transmission of the action potential by the optic nerve to the visual cortex.

In the first biological applicativon of bucky ball , chemists at the University of Califorminaat San F Francisoc and Santa Barbra made a discovery in 1993 that could help I designing drugs to rtreat AIDS . The human immunodeficienrcy virus (HIV) that causes AIES reproduces by syntheising a long protein chain , which is cut into smaller segments by an enzymecalled HiV-proteases . ONe way to stop AIDS , then might be to inacivate the enzyme. when the chemists reacted a water-soluble derivative of bucky ball with HIV-protease , they found that itbinds to the portion of th enzyme that would ordinarily clareve the repreouctive protein , preventing the HIV virus from reproducing . Consequently the virus could no bnolgre infect the human cells they had frown in the laboratory . The buycky ball compound itself is not a suitable drug for use against AIDS because of potential side effects and delivery difficaultes , but it does provide a model for the development of such drugs Consider following statements about bucky ball : A , It is also called fullerene B: It is also called Buckminster fullerene C: Bucky tubes (made of fullerenes ) are several times stronger than steel wires D: Bucky ball is a plastic polymer Select correct statement (s) :

The diagram shows the structure of a fungal cell with different parts labelled as A,B,C and D. Which of the following statements are true with regard to the fungal cell structive? (i) A contains mucopolysaccharides which are also present in exoskeleton of insects and crustaceans. (ii) D are usually more than one in number in case of aseptate hyphae. (iii) Carotenes and xanthophylls are present in C, which harvest light energy for photosynthesis. (iv) B is the reverse food material, usually stored in the form of starch and oil.

A list of steps involved in mechanism of vision is given below in a random order. (i)Neural impulses are analysed and image formed on retina is recognised by visual cortex. (ii)Membrane permeability changes (iii)Ganglion cells are excited (iv)Bipolar cells are depolarised (v)Action potentials (impulse) are transmitted by optic nerves to visual cortex. (vi)Potential differences are generated in the photoreceptor cells. (vii)Light energy causes a change in shape of rhodopsin, leading to the dissociation of retina (an aldehyde of vitamin A ) from opsin (a protein) (viii)Structure of opsin is changed. Which of the following options represents these events in a correct order ?

Consider the following four statemets (A - D) related to organic farming and select the correct option stating which ones are true (T) and which ones are false (F). The statements: (A) Produces food crops rich in lipids, vitamins and iron (B) Users biofertilisers which increases soil fertility (C ) There is more use of chemical fertilisers and pesticides (D) Raising unpolluted crops throuth the use of bacteria, fungi and cyanobacteria

Consider the following four statements (a-d) and select the option which includes the correct ones only ? (a) Floral or reproductive characters are less conservative as compared to vegetative characters. (b) Gross morphology is not considered in natural nonphylogenetic classification. (c) Tautonyms are valid in plant nomenclature. (d) Scientific names should be derived from Latin or Greek language.

CENGAGE BIOLOGY ENGLISH-NEET 2017 PAPER-MCQ
  1. The water potential of pure water is

    Text Solution

    |

  2. Select the mismatch

    Text Solution

    |

  3. With reference to factors affecting the rate of photosynthesis, which ...

    Text Solution

    |

  4. PEP is primary CO2 acceptor in

    Text Solution

    |

  5. Which statement is wrong for Krebs' cycle?

    Text Solution

    |

  6. Fruit and leaf drop at early stages can be prevented by the applicatio...

    Text Solution

    |

  7. Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

    Text Solution

    |

  8. Which of the following option best represents the enzyme composition o...

    Text Solution

    |

  9. The primary dentition in human differs from permanent dentition in not...

    Text Solution

    |

  10. Lungs are made up of air filled sacs the alveloi they do not collase ...

    Text Solution

    |

  11. The hepatic portal vein drains blood to liver from

    Text Solution

    |

  12. Frog's heart when taken out of the body continues to beat for sometime...

    Text Solution

    |

  13. A decrease in blood pressure/volume will not cause the release of

    Text Solution

    |

  14. Which of the following statements is correct?

    Text Solution

    |

  15. The pivot joint between atlas and axis is a type of

    Text Solution

    |

  16. Out of 'X' pairs of ribs in humans only 'Y' pairs are true ribs. Selec...

    Text Solution

    |

  17. Receptor sites for neurotransmitters are present on

    Text Solution

    |

  18. Good vision depends on adequate intake of carotene rich food. Select t...

    Text Solution

    |

  19. Myelin sheath is produced by

    Text Solution

    |

  20. Hypersecretion of Growth Hormone in adults does not cause further incr...

    Text Solution

    |