Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 8426
TLS Online TPP Program

#Question id: 11644

Seven days after ovulation, pituitary secretion of luteinizing hormone (LH) decreases rapidly. What is the cause of this decrease in secretion?

#Unit 7. System Physiology – Animal
  1. The anterior pituitary gland becomes unresponsive to the stimulatory effect of gonadotropin releasing hormone (GnRH)
  2. Estrogen from the developing follicles exerts a feedback inhibition on the hypothalamus
  3. The rise in body temperature inhibits hypothalamic release of GnRH
  4. Secretion of estrogen and progesterone by the corpus luteum suppresses hypothalamic secretion of GnRH and pituitary secretion of LH
More Questions
TLS Online TPP Program

#Question id: 14830

#Unit 2. Cellular Organization

Proton motive force
TLS Online TPP Program

#Question id: 14831

#Unit 2. Cellular Organization

A spirochete is a member of the phylum Spirochaetota, which contains distinctive diderm gram-negative bacteria, most of which have long, helically coiled cells. Movement of spirochetes occurs by means of structures called 
TLS Online TPP Program

#Question id: 14832

#Unit 2. Cellular Organization

The characteristic virulence factor of S. pneumoniae is
TLS Online TPP Program

#Question id: 14833

#Unit 2. Cellular Organization

The pneumococcal vaccine is directed against the
TLS Online TPP Program

#Question id: 14834

#Unit 5. Developmental Biology

Process by which a spatial and temporal pattern of cell activities is organized within the embryo so that a well-ordered structure develops:
TLS Online TPP Program

#Question id: 14835

#Unit 5. Developmental Biology

There are three main ways in which inducing signals may be passed between cells EXCEPT