58.chylomicrons, a. are aggregations of triglycerides formed within intestinal e

Question

58.chylomicrons,

a. are aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein, which renders the water-soluble

b. are aggregations of bile salts, monoglycerides, and free fatty acids

c. are small fat globules held apart by the action of the bile salts

d. are secreted in the succus enteric

e. are digested by bacteria in the colon

63.which of the following concerning implantation is correct?

a. implantation is accomplished by enzymatic activity of the trophoblastic layer of the blastocyst

b. the endometrium at the site of implantation is converted into the nutrient-rich decidua

c. implantation occurs within 24 hours after fertilization

d. both a and b are correct

e. all of the above

69.Exposed collagen in a damaged vessel,

a. activates factor XII to initiate blood clotting.

b. initiates platelet aggregation

c. secretes ADP, which causes platelets to become sticky

d. both a and b are correct

e. all of the above

73.The acrosome of the spermatozoon,

A. contains the sperm’s genetic information

b. contains mitochondria for energy production

c. is a fructose-filled vesicle that provides energy for the spermatozoa

d. contains enzymes that enable the sperm to penetrate the ovum

e. contains microtubules that slide past each other to provide the sperm with motility

74.tissue thromboplastin?

a. It is released from traumatized tissue and triggers the extrinsic clotting pathway.

b. It converts fibrinogen to fibrin

. c.forms the meshwork the clot

d. activates factor XII (hangman factor)

e. more than one of the love is correct

Explanation / Answer

58-.chylomicrons,

a. are aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein, which renders the water-soluble

63-d both a abd B are correct.

69-e-All of the above

73-d contains enzymes that enable the sperm to penetrate the ovum

74-6

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