Answer:
Small and lipid soluble cortisol can pass through nonpolar core of the plasma membrane.
Explanation:
Cortisol is a lipid-soluble steroid hormone with a compact structure. The plasma membrane is a bilayer of phospholipids.
The phospholipids are amphipathic molecules with a polar head and nonpolar tails. The nonpolar tails of the two layers of phospholipids are packed away from the watery medium and make the core of the plasma membrane.
Being a lipid-soluble hormone with a small structure, cortisol can pass through the nonpolar core of the plasma membrane easily to activate its receptors and alter the gene expression.
Answer:
La fecha de inicio del otoño varía según el clima, la tradición y la cultura, pero cuando es otoño en el hemisferio norte, es primavera en el hemisferio sur, y viceversa.
Explanation:
B
The net result of excretion of H+ in the urine is the __conversion of CO₂ to H₂CO₃__ within the blood.
Explanation:
Excretion of H+ ions from the blood via urine means decreasing the H+ content in the blood. This consequently means the blood pH rises ad becomes more basic (remember H+ ions are responsible for acidity for a solution). For the body to maintain the homeostatic pH of between 7.35 and 7.45, the carbonic anhydrase activity will increase hence dissolving more CO₂ into the blood plasma to form carbonic acid (H₂CO₃). Carbonic acid dissociated fast into H⁺ and HCO₃⁻. The H+ from the dissociation replenishes the H⁺ to the right concentration.
Learn More;
For more on blood pH check out;
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The part of the plant cell that gives it the green color is an organelle called the chloroplast. Inside the chloroplast there are pigment molecules called chlorophyll, which is the substance that gives the plant the green color.
Answer:
A. A= or RNA, B= cell fuel and support, C= galactose and glycogen,
D= nucleic acids and fatty acids.DNA
