How would a cell be affected if it lost the ability to be selectively permeable?

If there's no selective permeability, the cell would be able to allow all substances into the cell, in other words, the cell will be "permeable".

Normally, the biological membranes have a selective permeability, that is to say, they let themselves through some substances more easily than others, quickly pass through the membrane, because they dissolve in the lipid bilayer.

*Hydrophobic substances rapidly cross the membrane because they dissolve in the lipid bilayer.

*The small polar molecules (like H2O and CO2) thanks to their small size, these polar molecules also cross the double lipid layer.

*Large molecules and ions pass through the membrane through specific transport proteins, such as uniport, symport or antiport.

answer: all : )

explanation:

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.