AP BIO YOU GOT THIS

One benefit of a signaling cascade…

a relatively few number of signaling molecules and result in a large change

Water moves from…

Higher water potential (osmotic potential) to lower water potential

Aquaporins

channel proteins that allow larger amounts of water to move over a shorter period of time

Cells specialize for certain functions which…

involves activating different sets of genes

As ratio of product to substrate increases (more product)…

reaction rate decreases (active site are saturated)

Can organisms of different species produce hybrid offspring that are capable of reproducing?

No, according to the biological species concept

Can individuals of the same species have differences between their RNA sequences?

Yes they can

Every animo acid has…

an amine (NH2) group and a carboxyl (COOH) group

Amino Acid Elements

C,O,N,H, few S

Lipid Elements

C,H,O, some N and P

No reactions are…

100% efficient

Do prokaryotes remove introns?

No, only eukaryotes do