Answer:
It tells us the polarity of the water.
The correct answer is the collecting duct.
The term neprhon refers to the cellular structures of the mammalian kidney which filtrate the blood and create the urine.
The collecting duct is a structural component of the nephron, which collects the urine formed by the nephrons and sends it to the renal pelvis and ureters. The anti-diuretic hormone increases the collecting duct's permeability to water, by increasing the transcytosis of water.
Answer:
A and F are phosphate groups.
B and E are sugars.
C and D are nitrogenous bases.
Explanation:
Nucleotides are the molecules responsible for composing DNA and RNA. They are formed by three units: a phosphate group, a sugar molecule and a nitrogenous base.
The sugar molecule is a pentose, which means that it is a molecule formed by 5 carbons. These collections are represented by geometrical figures such as the letters "B" and "E" shown in the figure above, where each tip represents a carbon.
The nitrogenous bases are molecules that are named adenine (A) and guanine (G) and the pyrimidine bases cytosine (C), uracil (U) and thymine (T).
The phosphate group, in turn, is a molecule derived from phosphoric acid and is the only one that does not vary in each nucleotide.
Answer is b. Decreasing ; increasing
Neuropeptides are a class of messenger molecules present in central nervous system of many mammalian brain. About 100 different neuropeptides made and release from the hypothalamus of mammalian brain. A neuropeptide, after release may diffuse in the blood to exert its action on sleep, alertness, anxiety. Thus, neuropeptides play key roles in modulating neuronal activity.