Answer:Although protons resemble other positive ions such as Na+ and K+ in their movement across membranes, in some respects they are unique. Hydrogen atoms are by far the most abundant type of atom in living organisms; they are plentiful not only in all carbon-containing biological molecules, but also in the water molecules that surround them. The protons in water are highly mobile, flickering through the hydrogen-bonded network of water molecules by rapidly
It is true that once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.
Absorptive cells are also known as enterocytes. These cells line the lumen of the small intestine and the colon. They are meant to absorb the nutrients from the digested food inside the lumen of intestine. Apart from absorption, they also transport the nutrients across the membrane.
Portal vein is the blood vessel that transports blood from the GI tract, pancreas, gall bladder and spleen into the liver. This blood vessels belongs to the portal venous system. Its location is the upper right quadrant of the abdomen.
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Answer: I think it may be chemical energy
Explanation:
Plant and animal cells are very similar because they are both eukaryotic cells.
Answer:
B. gelisols
Explanation:
tundra soils are formed at high latitudes
