The Two Strands of a DNA Molecule Contain Nitrogen Bases

question 33

Multiple Choice

The two strands of a DNA molecule contain nitrogen bases which are

• A)identical.
• B)parallel.
• C)complementary.
• D)proportionate.

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Definitions:

Urine Concentration

The process by which the kidneys regulate the water content and solute composition of the urine.

Urea

Urea is a nitrogenous compound produced in the liver as a waste product of protein metabolism, excreted in urine.

Collecting Ducts

Channels within the kidneys responsible for gathering urine from the nephrons and moving it towards the renal pelvis.

Distal Convoluted Tubule

A portion of kidney nephron between the loop of Henle and the collecting duct system where selective reabsorption and secretion occur, influencing body's electrolyte and fluid balance.