12 Questions
What high-energy compound is created through phosphorylation in various organs, muscles, and the brain?
Creatine phosphate
What can cause an increase in daily creatinine excretion?
Increased dietary intake of creatinine
Which organ primarily removes creatinine from the blood?
Kidneys
Why do men tend to have higher concentrations of creatinine than women?
Lower muscle mass in men
What is the main role of creatine kinase (CK-MB) in blood plasma?
Indicating tissue damage
Which compound acts as a high-energy reserve in a coupled reaction involving the regeneration of ATP?
Phosphocreatine
What is the primary biological source for the production of creatinine?
Glycocyamine
In tissues with high, fluctuating energy demands like muscle and brain, which molecule plays an important role due to its ability to quickly regenerate ATP?
Phosphocreatine
What is the function of creatine phosphate in the body?
Acting as a reserve of high-energy phosphates in muscles and the brain
Which enzyme catalyzes the conversion of arginine and glycine into guanidinoacetate in the kidneys?
AGAT
Where is nonphosphorylated creatine released into after it is formed?
Blood by the liver
What is the role of creatine phosphate in recycling ATP?
Serving as a reserve of high-energy phosphates for ATP production
Test your knowledge on the physiology of creatinine and creatine phosphate, their functions in the body, and the renal mechanisms involved in their regulation.
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