#Question id: 19633
#XL - P Chemistry
#Question id: 11380
#XL - R Botany
Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness?
#Question id: 10570
#XL - R Botany
The diffusion coefficient (Ds ) is a characteristic of the substance
a) diffusion in liquid is much faster than diffusion in air
b) larger molecules have smaller diffusion coefficients
c) diffusion in air is much faster than diffusion in a liquid
d) Larger molecules have larger diffusion coefficient
Which of the following combination is correct?
#Question id: 11146
#XL - T Zoology
If you experimentally increase the concentration of Na+ outside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential?
#Question id: 2196
#XL - Q Biochemistry
Substance X is a charged molecule of small molecular weight. It is found at higher concentrations outside of cells than inside. How might substance X enter cells?