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NEET biology

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Question
CBSEENBI11002727
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Match the items given in Column I with those in Column II and select the correct option given below:

column i column ii
a Tricuspid valve i Between left atrium and left ventricle
b Bicuspid valve ii Between right ventricle and pulmonary artery
c Semilunar valve iii Between right atrium and right ventricle

  •  

    a b c
    iii i ii
  • a b c
    i iii ii
  • a b c
    ii i iii
  • a b c
    i ii iii

Solution

A.

 

a b c
iii i ii

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Question
CBSEENBI11002728
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Match the items given in Column I with those in Column II and select the correct option given below:

Column i Column ii
a Tidal volume i 2500 – 3000 mL
b Inspiratory Reserve volume ii 1100 – 1200 mL
c Expiratory Reserve volume iii 500 – 550 mL
d Residual volume iv 1000 – 1100 mL

  •  

    a b c d
    iii ii i iv
  • a b c d
    iii i iv ii
  • a b c d
    iv iii ii i
  • a b c d
    i iv ii iii

Solution

B.

a b c d
iii i iv ii
  1. Tidal volume is the volume of air inspired or expired during normal respiration. It is approximately 500 mL.
  2. Inspiratory reserve volume is an additional volume of air a person can inspire by a forceful inspiration. It is around 2500 – 3000 mL.
  3. Expiratory reserve volume is the additional volume of air a person can be expired by a forceful expiration. This averages 1000 – 1100 mL.
  4. Residual volume is the volume of air remaining in lungs even after forceful expiration. This averages 1100 – 1200 mL.

Question
CBSEENBI11002729
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Which of the following is an amino acid derived hormone?

  • Epinephrine

  • Ecdysone

  • Estriol

  • Estradiol

Solution

A.

Epinephrine

Epinephrine is derived from tyrosine amino acid by the removal of the carboxyl group. It is a catecholamine.

Question
CBSEENBI11002730
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Which of the following structures or regions is incorrectly paired with its functions?

  • Medulla oblongata : Controls respiration and cardiovascular reflexes

  • Limbic system: consists of fibre tracts that interconnect different regions of brain; controls movement.

  • Corpus callosum: band of fibres connecting system: left and right cerebral hemispheres.

  • Hypothalamus: production of releasing hormones and regulation of temperature,the hunger and thirst.

Solution

B.

Limbic system: consists of fibre tracts that interconnect different regions of brain; controls movement.

Limbic system (emotional motor system) is emotional brain. It controls all emotions in our body but not movements. It is located in the core of the brain and includes the amygadla, hippocampus and hypothalamus.

Question
CBSEENBI11002731
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The transparent lens in the human eye is held in its place by

  • ligaments attached to the ciliary body

  • ligaments attached to the iris

  • smooth muscles attached to the ciliary body

  • smooth muscles attached to the iris

Solution

A.

ligaments attached to the ciliary body

Lens in the human eye is held in its place by suspensory ligaments attached to the ciliary body.

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