Answers. Sodium/potassium pumps (Na/K ATPase) pump 3 Na out of the cell and 2 K into the cell. Without that, there would be relatively more ions in the cell. Therefore, the cell would swell up from osmosis. However, there is a basal efflux of K, (resting membrane potential), that would eventually equilibrate with the extracellular concentration.
The two processes that occur before the two strands of a DNA
molecule can separate during separate during the DNA replication is that their
hydrogen bonds should be broken in between of the molecule and bases and that
the molecule and the bases of it must be also unwind.
Answer:
Water and Wind
Explanation:
Erosion is caused by water wind and ice.
Answer: Competitive inhibition
Explanation:
Competitive inhibition is a form of enzyme control in which an inhibitor molecule, very similar in structure to the normal substrate of an enzyme, becomes reversibly bound to the active site.
A good example is malonate (an inhibitor) depriving succinate from binding to the active site of the enzyme, succinic acid dehydrogenase
The correct option is D. There are four different nitrogenous bases in DNA molecules; these bases are joined together by different forces including hydrogen bonds. In DNA molecules, there are two hydrogen bonds between adenine and thymine while there are three hydrogen bonds between cytosine and guanine. Thus, the hydrogen bonds between cytosine and guanine is the stronger.
