AnswersBiology - SC3209 B-ICUnit Test

Unit Test — Unit test Answers

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The student body president is launching a campaign to fight the spread of flu in his school. Which of the following should he encourage students to do?

A
shower twice a day
B
drink plenty of fluids
C
eat healthy snacks
D
wash their hands regularly
2
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Staphylococcus aureus, or staph, is a bacteria that is commonly found in the nose and on the skin of humans. While it is typically not harmful to humans, it is sometimes able to enter the body through an injury or broken skin, and get into the bloodstream. When this happens, it can cause a serious infection called sepsis. Sepsis can cause an individual to go into shock and bodily organs to stop functioning. Symptoms of sepsis include inflammation, fever or hypothermia, increased heart rate, and rapid breathing.Which immune system component initially results in the inflammation and responds quickly when Staphylococcus aureus enters the bloodstream?

Question illustration
A
complement system
B
phagocytes
C
Langerhans cells
D
B lymphocytes
3

While a home was undergoing a renovation, workers discovered that there was asbestos in the walls. Before any further work could be attempted, the family that owned the house had to evacuate, and specialists were brought in to remove the asbestos. Why would the house contain a substance that forced the family to be evacuated?

A
Asbestos is not harmful, and the family was evacuated due to routine construction protocol.
B
Asbestos was once thought to be very useful, but now it is linked to lung cancer so the family was evacuated.
C
Asbestos is not harmful, but the family was evacuated so that the asbestos could be recycled for another building.
D
Asbestos was thought to be useful and is no longer used due to increasing costs to manufacture it.
4

Which is the functional unit of the kidney where blood is filtered, water and other dissolved substances are reabsorbed, and waste is sent out to be excreted?

A
ureter
B
alveolus
C
urethra
D
nephron
5

In order to assemble the organic compounds that are necessary for life, enzymes must break down food into their building blocks. What would happen if someone was not able to produce enough amylase?

A
Simple sugars would not be obtained from carbohydrates.
B
Amino acids would not be obtained from proteins.
C
Fatty acids would not be obtained from lipids.
D
Nucleotides would not be obtained from nucleic acids.
6

Samuel ate some vegetable soup. What process is at work to allow Samuel to break down the soup so that his body will be able to produce energy?

A
growth
B
absorption
C
excretion
D
digestion
7

Along with Louis Pasteur, what other scientist helped to disprove spontaneous generation?

A
Eli Germ
B
John Snow
C
Francesco Redi
D
Robert Koch
8

The Heimlich maneuver is a series of pushing motions on the area just under the diaphragm that helps a person whose airway is blocked. Which best explains how this maneuver helps unblock a person's airway?

A
Pushing the diaphragm causes air to flow out of the lungs, which pushes the blockage out.
B
Pushing the diaphragm causes blood to rush to the area that pushes the blockage out.
C
Pushing the diaphragm allows the brain to produce hormones that push the blockage out.
D
Pushing the diaphragm causes a person's ribs to contract, which pushes the blockage out.
9

Which of the following would most likely help scientists conclude that kidney disease can result from not drinking enough water?

A
inventing a new machine that helps maintain excretory function when a patient is in the hospital
B
comparing the rates of kidney disease reoccurrence in recovering patients who increased their daily water intake vs. those who did not increase their daily water intake
C
asking whether the climate of a kidney-disease patient affects the likelihood of contracting a bacteria that enters the kidneys
D
reading studies about how dehydration affects the functions of the circulatory system and comparing them to studies about dehydration and the respiratory system
10

Alzheimer's disease has some lifestyle factors because

A
everyone can contract it in their lifetime.
B
it can be influenced by nutritional choices.
C
up until now there is no known cure for it.
D
it can be contracted through germs.
11

Scientists use information about digestion to help design new cleaning products because they break down materials. What enzymes should be included in cleaners that are aimed at removing stains from a greasy hamburger patty?

A
protease and amylase
B
nuclease and amylase
C
protease and lipase
D
nuclease and lipase

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