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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 9

Find out the incorrect statement.

A Osmosis is a slow process, occurs down the concentration gradient and does not expend energy.
B Electron microscope uses very high voltage electricity. It uses electromagnets instead of glass lenses and beam of electrons instead of light.
C A semipermeable membrane does not allow both solvent and solute molecules to pass through it.
D Active transport of materials is rapid and usually occurs against the concentration gradient involving carrier proteins and energy in the form of ATP.


We've to find an incorrect statement....The answer given i.e. C is a correct statement.....So it is not the right answer....Please give a correct answer...Thank you

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Subject :NSO    Class : Class 4

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Class : Class 5
i did (D)

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

When an ideal simple pendulum oscillates between the extreme points P and Q, there is continuous (i) of potential energy and kinetic energy. The potential energy depends on the choice of (ii) . Force acting on the bob of the pendulum is maximum at (iii), and minimum at (iv).

(i) (ii) (iii) (iv)
A Dissipation reference level mid point extremes
B Dissipation mass mid point extremes
C Exchange reference level extremes mid point
D Exchange velocity extremes mid point


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Subject :NSO    Class : Class 6

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Class : Class 6

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Subject :NSO    Class : Class 7

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Class : Class 7
you stink

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 8

Consider the following statements (a - d) each with one or two blanks.
I. In our body, _(1)_ is the longest cell while _(2)_ is the smallest cell.
II. Cell membrane in animal cells is _(3)_
III. Mitochondria is absent in _(4)_
IV. _(5)_ are membraneless organelles of cell and are involved in synthesis of _(6)_
Select the correct option to fill any three or four blanks.

A1 - Neuron, 2 - PPLO , 4 - bacteria
B3 - Permeable , 5 - Ribosomes, 6 - proteins
C3 - Selectively permeable , 1 - Neuron, 2 - RBC
D3 - Impermeable , 4 - human RBCs , 6 - lipids


Ans 1:

Class : Class 6

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Class : Class 3
C

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Class : Class 3
C

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