Lactose is a component of milk that is made in the _____ cells and secreted by _____.
a. secretory; transporter proteins
b. myoepithelial; transporter proteins
c. secretory; exocytosis
d. myoepithelial; exocytosis
e. secretory; diffusion
Q. 2The first signs of vitamin C deficiency appear in the:
a. blood vessels.
b. bones.
c. hair.
d. fingernails.
Q. 3Prolactin is a hormone that _____.
a. stimulates the breast tissue to release oxytocin
b. causes milk to be secreted from the mammary gland ducts
c. decreases estrogen production
d. stimulates milk production
e. stimulates development of breast tissue
Q. 4What hormone is produced during letdown and causes the ejection of milk from the milk glands into the milk ducts?
a. oxytocin
b. prolactin
c. estrogen
d. progesterone
e. lactogen
Q. 5Many of the symptoms of vitamin C deficiency, such as dry scaly skin and failure of wounds to heal, are related to the role of vitamin C in the synthesis of:
a. calcium and iron.
b. thyroxin.
c. collagen.
d. adrenal hormones.
Q. 6The formation of collagen requires an adequate intake of:
a. vitamin K.
b. vitamin E.
c. vitamin C.
d. folate.
Quick Reply
