chapter 18 test A&P 2
Protein is a chain of ______ twisted and folded into a 3D shape? A. amino acids B. glycerol C. nucleic acids D. polymers
A. amino acids
Which are characteristic of type A blood? a: has anti-A antibodies b: has anti-B antibodies c: has surface antigen A on its erythrocytes d: has surface antigen b on its erythrocytes e: has neither surface surface antigen A nor B on its erythrocytes f: will agglutinate with blood type B A. b ,c ,f B. a, c, d, f C. a, d, f D. b, c, d, f E. a, c, f
A. b, c, f
oxygen-poor blood is _______ in color? A. dark red B. light blue C. dark blue D. bright red
A. dark red
The main function of leukocytes is to A. defend against pathogens B. form clots C. carry carbon dioxide through the blood D. trigger allergies E. carry oxygen through the blood.
A. defend against pathogens
Compared to the nervous system, the endocrine system has? A. more widespread and long-lasting effects B. more widespread and short-term effects C. more localized and short-term effects D. more localized and long-lasting effects
A. more widespread and long-lasting effects
Which hormone stimulates osteoclasts and what do they do? A. parathyroid hormone, dissolve bone B. growth hormone, make bones longer C. calcitriol, store calcium D. calcitonin, build bone
A. parathyroid hormone, dissolve bone
Which term best describes the function of blood when considering the presence of leukocytes and antibodies? A. protection B. regulation C. prevention D. transportation
A. protection
When over 10% of the body's blood has been lost, a survival response occurs involving activation of the ______ nervous system? A. sympathetic B. somatic C. parasympathetic
A. sympathetic
The pancreas has both endocrine and exocrine functions? A. true B. false
A. true
What color is deoxygenated blood? A. violet B. dark red C. bright red D. blue
B. dark red
If a patient becomes dehydrated, the percentage of plasma in a centrifuged sample of his or her blood would likely? A. not change B. decrease C. increase
B. decrease
One of the unhealthy effects of blood doping is to? A. increase the oxygen-carrying capacity of the blood B. increase the viscosity of the blood C. increase the carbon dioxide carrying capacity of the blood D. decrease the blood pressure in the arteries E. decrease the oxygen-carrying capacity of the blood
B. increase the viscosity of the blood
Which leukocyte is the most abundant? A. basophil B. neutrophil C. lymphocyte D. monocyte
B. neutrophil
osmosis occurs when water moves to? A. the area with the most water B. the area with higher solute concentration C. the nucleus of the cell D. arteries
B. the area with higher solute concentration
The term down-regulation refers to the process by which? A. a carrier protein increases the rate of degradation for a hormone and thereby decreases its blood concentration B. a glandular cell decreases the amount of hormone it secretes C. a cell decreases the number of receptors it has for a hormone D. a carrier protein decreases the rate of degradation of the protein it ferries E. a large amount of hormone shuts down all metabolic activity in a target cell
C. a cell decreases the number of receptors it has for a hormone
Glucagon and insulin work ______ on blood glucose levels? A. synergistically B. permissively C. antagonistically
C. antagonistically
The clinical definition of the hematocrit refers to the percentage of? A. platelets in the blood B. all formed elements in the blood C. erythrocytes in the blood D. leukocytes in the blood E. plasma in the blood
C. erythrocytes in the blood
Leukocytes are the ________ of the formed elements, and leukocytes have _________? A. smallest, prominent nuclei B. smallest, no nucleus C. largest, prominent nuclei D. largest, no nucleus
C. largest, prominent nuclei
If agglutination occurs after a blood transfusion, it may indicate? A. the donor had type O blood B. the recipient had type AB blood C. the wrong blood type was used D. there was no agglutinins (antibodies) in the recipient blood
C. the wrong blood type was used
Which term best describes the function of blood when considering the presence of carbon dioxide and endocrine hormones? A. protection B. prevention C. transportation D. regulation
C. transportation
To compensate for significant blood loss, the autonomic nervous system triggers? A. vasodilation and an increase in heart rate B. vasoconstriction and a decrease in heart rate C. vasoconstriction and an increase in heart rate D. vasodilation and a decrease in heart rate
C. vasoconstriction and an increase in heart rate
The carbon dioxide molecules that bind to the hemoglobin molecule are attached to the ______ units? A. iron B. heme C. calcium D. globin
D. globin
Which organ makes most of the plasma proteins? A. kidney B. red bone marrow C. small intestine D. liver
D. liver
The liquid portion of blood is? A. buffy coat B. hematocrit C. erythrocytes D. plasma
D. plasma
How many globins (protein building blocks) are found in a single hemoglobin molecule? A. 8 B. 1 C. 2 D. 6 E. 4
E. 4
steroid hormones are lipid, derived from? A. polypeptides B. glycerol C. amines D. nucleic acids E. cholesterol
E. cholesterol
Which hormone is secreted by the pineal gland? A. melanin B. cortisol C. melatonin D. insulin E. oxytocin
IT IS NOT A. MELANIN
Thyroid hormone is somewhat unique in that is a? A. protein hormone that is water-soluble B. steroid hormone that is lipid-soluble C. monoamine that is water-soluble D. biogenic amine that is lipid-soluble
IT IS NOT B. steroid hormone that is lipid-soluble
Parathyroid hormone release depends on blood levels of calcium. Such an endocrine reflex is said to be initiated by? A. hormonal stimulation B. positive feedback stimulation C. neural stimulation D. humoral stimulation
It is not A. hormonal stimulation
The most numerous of the formed elements are the? A. basophils B. neutrophils C. erythrocytes D. platelets E. albumins
The answer is NOT B. neutrophils
