(c) The diagram shows the permeability of cell membranes to some chemicals. sodium and chloride ions
(Na+ and Cl-)
glucose, steroid ,water

increasing permeability
The sodium and chloride ions, glucose and water are polar chemicals.
A steroid is a non-polar chemical.
(i) Describe the dipolar nature of water.
(2)

Abanana plant produces rhizomes, which are involved in

Which type of bacterial reproduction is depicted in the diagram?

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?