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NEET Test 85

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NEET Test 85
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Weekly Quiz Competition
  • Question 1
    4 / -1

    Which among the following is not an exact differential?

    Solution

    Heat ′Q′ is a path-dependent function, hence its exact differentiation is not possible, however, internal energy, entropy, and Gibbs free energy are state functions, hence can be differentiated exactly.

    Hence, the correct option is (A).

     

  • Question 2
    4 / -1

    The phase difference between displacement and acceleration of a particle in a simple harmonic motion is :

  • Question 3
    4 / -1

    In small intestine, active absorption occurs in case of ______.

    Solution

    In small intestine, active absorption occurs in case of glucose, amino acids and Na+.

    The small intestine is a narrow tube about seven meters long in adults. The maximum absorption takes place in the small intestine. Amino acids, Na+, glucose, galactose are absorbed by active transport. Water and lipids are absorbed by passive diffusion throughout the small intestine.

    Hence, the correct option is (D).

     

  • Question 4
    4 / -1

    An ideal gas is expanding such that pT2= constant. The coefficient of volume expansion of the gas is:

    Solution

     

     

  • Question 5
    4 / -1

    Biosynthesis of cytokinin takes place via:

    Solution

    Biosynthesis of cytokinin takes place via the mevalonic acid cycle.

    It also results in the synthesis of gibberellic acid and abscisic acid. Mevalonic acid is first converted into isopentenyl pyrophosphate. It is then converted to isopentenyl AMP which is then converted to isopentenyl adenosine. This is finally converted to cytokinin. 

    Hence, the correct option is (A).

     

  • Question 6
    4 / -1

    A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally from the opposite surface. If the refractive index of the material of the prism is μ, then the angle of incidence is nearly equal to

  • Question 7
    4 / -1

    Plasmids that can integrate in the bacterial DNA are:

    Solution

    The integrative plasmids may be replicated and stably maintained in a cell through multiple generations, but at some stage, they will exist as an independent plasmid molecule.

    A few types of plasmids can also insert into the host chromosome, and these integrative plasmids are sometimes referred to as episomes in prokaryotes. Plasmids almost always carry at least one gene.

    Hence, the correct option is (D).

     

  • Question 8
    4 / -1

    If λvx, and λm represent the wavelengths of visible light, X - rays and microwaves respectively, then:

    Solution

     

  • Question 9
    4 / -1

    Inulin found in plant cell is a:

    Solution

    Plant hormones, also known as phytohormones, are chemicals that regulate plant growth. Plant hormones are signaling molecules and are produced in plants in very small quantities. Hormones regulate cellular processes in locally targeted cells and when they reach other places in the plant, they regulate cellular processes. Inulin is an unusual polysaccharide and polymer of fructose. It is used as a fructose, particularly in roots and tubers of the family Compositae (e.g. Dahlia tubers).

    Hence, the correct option is (C).

     

  • Question 10
    4 / -1

    Which of the following statements is correct?

    Solution

    The photocurrent increases linearly with the intensity of the light but is independent of its frequency.

    The stopping potential increases linearly with the frequency of the incident light but is independent of its intensity.

    Hence, the correct option is (A).

     

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