NEET Biology question
Not in NEET syllabus
Read the following statements carefully and choose the correct answer from the options given below.
I. Diffusion is a slow process and does not depend upon a living system. II. Usually the process of diffusion does not need energy. III. Diffusion can occur from one part of a cell to another part of the same cell, or from one cell to another cell, and from one tissue to another tissue. IV. Diffusion is a rapid process over short distances, but extremely slow over long distances.
Solution
All four statements are correct descriptions of diffusion: it is slow and physical/non-living in nature (I), needs no metabolic energy (II), occurs at several levels from intracellular to intercellular to intertissue
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