Liam is a body builder and frequently consumes protein powder as part of his fitness regimen. He consumes more protein than his body actually uses. What happens to the excess protein?
A)It is filtered through the glomerular capillary into the glomerular capsule and into the nephron, where it is finally excreted in the urine.
B)It is broken down into urea by the liver, which is then filtered into the glomerular capsule and also secreted elsewhere in the nephron.
C)The large proteins are secreted into the distal convoluted tubule by tubular secretion.
D)It is stored in adipocytes after being converted into fats.

Question

Quizplus · Accepted Answer

Excess protein is broken down into urea by the liver, which is then filtered into the glomerular capsule and also secreted elsewhere in the nephron. This process is known as urea recycling and helps conserve water and nutrients in the body. Option A is incorrect as proteins are too large to be filtered through the glomerular capillary into the glomerular capsule, except in cases of disease or injury to the kidneys. Option C is incorrect as only small molecules are able to be secreted into the distal convoluted tubule. Option D is incorrect as excess protein cannot be stored as fat, as the conversion of protein to fat requires significant energy and is not an efficient metabolic process in the body.

Liam Is a Body Builder and Frequently Consumes Protein Powder