Physiology and Biochemistry Quiz

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Which hormone is responsible for converting inactive Vitamin D to Vitamin D3 and is important in calcium metabolism?

Epinephrine

Thyroxine

Calcitonin

Parathyroid hormone (correct)

What is the normal value of fasting blood sugar?

70-99 mg/dl (correct)

100-120 mg/dl

140-160 mg/dl

120-140 mg/dl

What is the purpose of an ampholyte in isoelectric focusing?

Maintain pH of buffer

Keep proteins in charged state

Establish pH gradient (correct)

Establish current flow

Which of the following does not affect serum BUN levels?

Muscle mass Signup and view all the answers

What is the enzyme that catalyzes the hydrolysis of urea to ammonium ion and bicarbonate?

Urease Signup and view all the answers

How much sodium chloride must be dissolved to prepare 500ml of 5 molar solution, given MW = 58.44 g?

584.4 g Signup and view all the answers

Which of the following hormones is regulated by the renin-angiotensin-aldosterone system?

Aldosterone Signup and view all the answers

What is the primary function of aldosterone in the body?

Regulating electrolyte balance and blood pressure Signup and view all the answers

Which of the following is a stimulus for aldosterone secretion?

Increased serum potassium Signup and view all the answers

What is the main reason why blood samples require ice for storage?

To prevent oxygen consumption leading to acid formation Signup and view all the answers

Which of the following is NOT a parathyroid hormone?

Prolactin Signup and view all the answers

What is the name of the hormone produced by the pituitary gland that regulates thyroid function?

TSH Signup and view all the answers

What is the formula to calculate the electrolyte balance?

2Na + (glucose/18) + (BUN/2.8) + 9 Signup and view all the answers

What is the characteristic of primary hypothyroidism?

Low T4/T3, normal TSH Signup and view all the answers

What is the name of the protein that increases the risk of Alzheimer's disease?

Apolipoprotein Signup and view all the answers

Which of the following is an example of a glycoprotein?

FSH Signup and view all the answers

Which gland is responsible for producing active vitamin D3?

Kidney Signup and view all the answers

Which of the following is a product of tyrosine?

Epinephrine Signup and view all the answers