All mineral donot enter by passive absorbtion  | Filo
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Class 11

Biology

Cell: Structure and Functions

Cell: The Unit of Life

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All mineral donot enter by passive absorbtion 

  1. Minerals are as charged particles that can't cross cell membranes
  2. minerals transport is downhill
  3. both 1 and 2
  4. none of these
Correct Answer: Option(a)
Solution: Mineral salts are absorbed from the soil solution in the form of ions. They are chiefly absorbed through the meristematic regions of the roots near the tips. However, some mineral salts may also be absorbed in other locations on the root surface or over the entire root surface including the zone of elongation and root hairs that depends upon the high availability of such minerals around them and/or strong tissue demand at such locations. 
So, the correct option is Minerals are as charged particles that can't cross cell membranes.
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