Consider the following statements (a-d) each with one or two blanks.a. Numerically ___(i)___ is equivalent to the osmotic potential but the sign is opposite.b. The water potential of ___(ii)___ at standard temperatures, which is not under any pressure, is taken to be zero.c. Minerals are present in the soil as charged particles which ___(iii)___ move across cell membranes.d. The movement of water through the root layers is ultimately ___(iv)___ in the endodermis.Which one of the following options, gives the correct fill ups for the respective blank numbers from (i) to (iv) in the statement?
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a
(i) water potential(ii) solution
b
(ii) pure water(iv) symplastic
c
(i) osmotic pressure(iii) can
d
(iii) cannot(iv) apoplastic
answer is B.
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Detailed Solution
Numerically osmotic potential is equal to osmotic pressure but has opposite sign. The water potential of pure water at standard temperature and no pressure is working over it is zero. Minerals present in the soil move across the cell membrane in active manner and some passively.Movement of water is ultimately symplastic in root endodermis.