In females at puberty, what cells begin to secrete the major female sex hormone estradiol?
A. oocyte cells
B. granulosa cells
C. corpus luteum
D. follicle cells
Answer: B
You might also like to view...
Communication between cells always involves four components, including a signaling cell, a signaling molecule, a receptor, and a target responding cell. Mark each of the following statements about cell communication true or false
____ Signaling molecules are always secreted from the signaling cell. ____ The distance travelled by the signaling molecule to the responding cell varies tremendously depending on the signal. ____ A specific signaling molecule may bind to receptors on more than one kind of cell. ____ Receptors for signaling molecules are always integral membrane proteins on the surface of responding cells. ____ Signaling molecules involved in endocrine signaling are always hydrophobic hormones like testosterone. ____ Peptide signaling molecules are only involved in paracrine or autocrine signaling. What will be an ideal response?
Regardless of its shape, a given orbital may contain no more than:
A. 1 electron. B. 4 electrons. C. 8 electrons. D. 2 electrons.
Answer the following questions true (T) or false (F)
1. If an Rh-positive woman marries an Rh-negative man, their children are at risk for hemolytic disease of the newborn. 2. Infection with certain viruses may lead to the development of type I diabetes. 3. Depletion of the helper T cell population by HIV results in the development of AIDS.
Plants are photosynthetic autotrophs. What does this mean?
A. The make their own food from organic materials. B. They require pre-formed organic compounds. C. They use light energy to drive the synthesis of organic molecules. D. They are considered to be the consumers of the biosphere.