Regulation and Reproduction Exam
Regulation and Reproduction Exam
1.
(06.01 MC)
Which of the following would you expect to find in the urine of a dehydrated person? (2 points)
Diluted urine and high ADH concentrations in the blood
Concentrated urine and high ADH concentrations in the blood
Diluted urine and low ADH concentrations in the blood
Concentrated urine and low ADH concentrations in the blood
2.
(06.01 MC)
© Image Courtesy of 3DScience.com 2013
In the nephron depicted above, what will happen if part B malfunctions so that substances can no longer diffuse in and out? (2 points)
Water will not be reabsorbed through the collecting ducts
ADH will not be released into the bloodstream
Fluid from the blood will not enter the nephron
Useful substances will not be reabsorbed from the urine
3.
(06.02 MC)
As a child, you contracted hand, foot, and mouth disease, which is caused by a virus. Several years later, your sibling also contracted the same virus. Why don’t you get sick a second time? (2 points)
You have antibodies that already recognize the virus.
White blood cells released histamines and killed the virus.
Your skin prevented the virus from entering your body.
Stomach acid inactivated the virus, preventing its spread.
4.
(06.02 MC)
Although you consume millions of bacteria every day when ingesting food and drink, you rarely get sick. This is partially due to which of the following defenses of the digestive system? (2 points)
Antibacterial enzymes; stomach acid
Histamines; antibacterial enzymes
Stomach acid; cytokines
Cytokines; histamines
5.
(06.02 LC)
Which of the following components of the immune system form memory cells after you receive a vaccine? (2 points)
Skin and saliva
Monocytes and macrophages
Neutrophils and histamines
B and T cells
6.
(06.03 MC)
Which disorder is properly matched with the lymphatic organ that would prevent the disorder? (2 points)
Tonsils; harmful pathogens in the digestive system
Peyer’s patches; respiratory infection and sore throat
Spleen; damaged red blood cells present in blood
Thymus; low red blood cell count in the blood
7.
(06.03 MC)
A student’s tonsils become infected and she has them removed. What condition does she need to be careful of in the future? (2 points)
She will have a reduced ability to fight blood-borne pathogens.
She will have a reduced ability to fight waterborne pathogens.
She will have a reduced ability to fight food-borne pathogens.
She will have a reduced ability to fight airborne pathogens.
8.
(06.03 MC)
Leukemia is a form of cancer in which lymphocytes divide uncontrollably, often crowding out red blood cells in the blood vessels. Which of the following correctly describes where cancerous lymphocytes could develop and how they would enter the bloodstream? (2 points)
They develop in the lymph nodes and are deposited in the heart.
They develop in the lymph nodes and are deposited in the subclavian veins.
They develop in the lymph and are deposited in the capillary beds.
They develop in the lymph and are deposited in the subclavian artery.
9.
(06.03 MC)
A person had an infection of his Peyer’s patches and developed intestinal cancer. How could these two events be related? (2 points)
Peyer’s patches filter lymph in the intestine and would have removed the cancer cells.
Peyer’s patches contain lymphocytes that may have killed the cancer cells.
Peyer’s patches remove abnormal red blood cells, including cancer cells.
Peyer’s patches secrete hormones that suppresses the reproduction of cancer cells.
10.
(06.04 MC)
© Image Courtesy of 3DScience.com 2013
Based on the cross sections above, which of the following correctly matches the structure with its function? (2 points)
A-transports egg cells
B-transports sperm cells
C-transports sperm cells
D-transports egg cells
11.
(06.04 MC)
Which of the following correctly describes events occurring in female reproductive organs in their proper order? (2 points)
Uterus-produces eggs; ovary-zygote implants; oviduct-fertilization occurs
Uterus-produces eggs; oviduct-fertilization occurs; ovary-zygote implants
Ovary-produces eggs; uterus-zygote implants; oviduct-fertilization occurs
Ovary-produces eggs; oviduct-fertilization occurs; uterus-zygote implants
12.
(06.04 MC)
A man with testicular cancer loses both testes. Which of the following describes one possible effect of this procedure? (2 points)
He will no longer be able to produce sperm and will have to take supplemental progesterone.
He will no longer be able to produce sperm and will have to take supplemental testosterone.
He will no longer be able to ejaculate and will have to take supplemental progesterone.
He will no longer be able to ejaculate and will have to take supplemental testosterone.
13.
(06.05 MC)
A baby’s first breath initiates a series of changes that includes which of the following? (2 points)
The ductus venosus and ductus arteriosus both open.
The ductus venosus and ductus arteriosus both close.
The ductus venosus opens, and the ductus arteriosus closes.
The ductus venosus closes, and the ductus arteriosus opens.
14.
(06.05 MC)
Which of the following describes vessels critical to fetal circulation but does not play a role in adult circulation? (2 points)
Aorta
Pulmonary artery
Inferior vena cava
Ductus arteriosus
15.
(06.02 HC)
As you walk down the hall on the way to class, several students sneeze. You unknowingly inhale some of the droplets that were expelled when they sneezed, allowing the flu virus to enter your body. Explain the nonspecific immune defenses that the virus must bypass in order to infect a body cell.
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