TLS Online TPP Program

#Question id: 576


The hydrophobic cleft in globular proteins which bind substrate molecules is called the ________.

#Unit 1. Structure and Function of Biomolecules
  1. substrate pocket

  2. modulator site

  3. active site

  4. activity site

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TLS Online TPP Program

#Question id: 11787

#Unit 7. System Physiology – Animal

Giving prostaglandin E2 (PGE2) to a pregnant woman may result in an abortion. What is the best explanation for this finding?

TLS Online TPP Program

#Question id: 11788

#Unit 7. System Physiology – Animal

During the first few years after menopause, follicle-stimulating hormone (FSH) levels are normally extremely high. A 56-year-old woman completed menopause 3 years ago. However, she is found to have low levels of FSH in her blood. Which of the following is the best explanation for this finding?

TLS Online TPP Program

#Question id: 11796

#Unit 7. System Physiology – Animal

Which of the following hormones is largely unbound to plasma proteins?

TLS Online TPP Program

#Question id: 11946

#Unit 7. System Physiology – Animal

A 3-week-old infant is brought to the emergency room in a comatose condition. The history reveals that her parents have been feeding her concentrated, undiluted formula for 5 days. (Infant formula preparations are often sold in concentrated forms that must be properly diluted with water before feeding.) The infant’s plasma osmolality is 352 mOsm/L (normal is 280 to 300 mOsm/L), and the osmolality of the urine is 497 mOsm/L. What is the explanation for the hyperosmotic condition of the plasma?

TLS Online TPP Program

#Question id: 11947

#Unit 7. System Physiology – Animal

Why is milk produced only after delivery, not before?

TLS Online TPP Program

#Question id: 11948

#Unit 7. System Physiology – Animal

Which of the following increases the rate of excretion of calcium ions by the kidney?