<h2>Urea </h2>
Explanation:
Urea is a small nitrogenous compound which is the main end product of protein catabolism in mammals
- Urea is a nitrogen-containing substance normally cleared from the blood by the kidney into the urine
- It is made predominantly in the liver from ammonia and bicarbonate and is one of the main components of urine
- The rate of synthesis varies from 300 to 600 mmol/day depending on the protein intake
- All of this urea eventually finds its way into the urine
- Because urea makes up a large part of the obligatory solute excretion, its osmotic pressure requires significant volumes of water to carry the urea
- Urea passively crosses biological membranes, but its permeability is low because of its low solubility in the lipid bilayer
- Some cells speed up this process through urea transporters, which move urea by facilitated diffusion
- Urea is passively reabsorbed in the proximal tubule, but its route of transport is not clear
- Urea transporters have not yet been identified for the proximal tubule
Answer:
a neurotransmitter binds to its receptor on a receiving cell
Explanation:
Pepsi actually contains more sugar than Coke, which clocks in at 39 grams of sugar. This Pepsi offshoot contains 160 calories and 42 grams of sugar. Orange soda generally contains a lot more sugar than regular cola; Orange Fanta contains 160 calories and 44 grams of sugar per can
Total→$120×80=$9600__suppose all 80 is girls
extra→$9600-$9210=$390
difference→$120-$105=$15
opposite→$390÷$15=26boys
girls→80-26=54
