Exam 3 Clicker Questions Flashcards
Carnivores tend to have longer guts than herbivores because the food is more difficult to digest.
A. True
B. False
B. False
A blockage of the ducts from the parotid or sublingual glands would:
A. interfere with the release of gastrin
B. interfere with mechanical digestion
C. interfere with carbohydrate digestion
D. interfere with lipid digestion
E. interfere with chylomicron formation
C. interfere with carbohydrate digestion
Rugae, plicae (circular folds), and villi are all features that accomplish
A) secretion of enzymes
B) secretion of hormones
C) an increase in surface area
D) immune function
E) mechanical digestion
C) an increase in surface area
Which of the following statements regarding protein digestion and absorption is true?
A) Only the stomach and exocrine pancreas produce enzymes that digest protein
B) The products of protein digestion are carried by blood directly to the liver
C) Pepsin digests protein in the small intestine
D) The enzymes that digest protein are secreted in active form
E) Products of protein digestion first go to the lymph system, and then to the veins leading to the heart
B) The products of protein digestion are carried by blood directly to the liver
Cholecystokynin (CCK)
A) Relaxes the sphincter of Oddi (hepatopancreatic sphincter)
B) Stimulates pancreatic enzyme secretion
C) Stimulates gallbladder contraction
D) Both B and C
E) all of the choices are correct
E) all of the choices are correct
An inflammatory response is triggered when
A) red blood cells release pyrogens
B) T lymphocytes release interferon
C) mast cells release granules containing histamine
D) neutrophils phagocytize bacteria
E) blood flow to an area increases
C) mast cells release granules containing histamine
Helper T cells bind to antigen complexes with class II MHC proteins, with cytotoxic (killler) T cells bind to antigen complexes with class I MHC proteins
A) True
B) False
A) True
Which of the following are typically necessary to stimulate a B-lymphocyte to divide and differentiate?
A) a plasma cell and an antibody
B) a helper T-lymphocyte and an antigen
C) a cytokine and an immunoglobin
D) a cytotoxic (killer) T-lymphocyte and a cytokine
E) all of the above
B) a helper T-lymphocyte and an antigen
HIV destroys CD4 cells, which are a type of
A) Eosinophil
B) Basophil
C) T lymphocyte
D) B lymphocyte
E) Neutrophil
C) T lymphocyte
- In Mammals, during the life cycle of red blood cells (RBCs) which of the following is TRUE:
A) red blood cells are unable to synthesize proteins, grow, or undergo mitotic division
B) old red blood cells are destroyed by the macrophages in the kidneys
C) red blood cells have a life span of about 70-80 days
D) the heme portion of hemoglobin is broken down to amino acids
E) the globin portion of hemoglobin is degraded to bilirubin by the liver
A) red blood cells are unable to synthesize proteins, grow, or undergo mitotic division
- The primary organ where erythropoietin is produced is the
A) liver.
B) kidney.
C) spleen.
D) bone marrow.
E) endothelial cells throughout the
B) kidney.
- This type of leukocyte is rare in the blood, unless you are infected by parasitic worms!
A.Neutrophil
B.Eosinophil
C.Monocyte
D.Lymphocyte
E.Macrophage
B.Eosinophil
4.All of the following would cause an increase in blood pressure EXCEPT
A) an increase in arterial resistance.
B) a decrease in arterial diameter.
C) a decrease in cardiac output.
D) sympathetic stimulation.
C) a decrease in cardiac output.
- The lymphatic system
A) has heart-like pumps called lymph nodes.
B) stores blood when circulatory demand is low.
C) empties the lymph vessels into the veins near the collar bones (clavicles).
D) can be removed without health consequences.
E) All of the answers are correct.
C) empties the lymph vessels into the veins near the collar bones (clavicles).
