Answer:
Alpha-1
Explanation:
Adrenergic receptors are the integral proteins present in the postsynaptic plasma membranes. These receptors are activated when the neurotransmitter norepinephrine and the hormones norepinephrine and epinephrine bind to them. The alpha 1 adrenergic receptors are found in the smooth muscle fibers of blood vessels that serve the salivary glands, skin, and kidneys. These receptors are also found in the radial muscle of iris of the eye as well as in the sphincter muscles of the stomach and urinary bladder.
They exert excitatory effect and lead to contraction of smooth muscles of the blood vessels, dilation of pupil, and closure of sphincters of the bladder.
<span>Water has positive and negatively charged bonds.
Sugar easily dissolves in water because of water's </span>polarity.
I hope this helps!
Answer:
Cancer causes tumors to grow. A cell that has become cancerous will multiply rapidly and create a tumor.
Explanation:
Plant cells are bigger because they have bigger/larger Vacuoles.
These vacuoles hold water and food for the cell its like a storage for the cell.
This is true. Urea carries the bloodstream to your kidneys which then transport waste along with water to form urine.
