Question

Help! Multiple Choice Questions! (:

Answer 1

Janelle is preparing to audition for a position in her community dance company. She has been practicing a series of dance steps from a performance she did the previous year. What two major parts of her brain will be most active as she practices?

Thalamus and pituitary gland

Hypothalamus and brain stem

Cerebellum and the temporal lobe

Medulla oblongata and pons


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Question 4 (Multiple Choice Worth 1 points)

(07.02 LC)

Which of the following are narrow blood vessels that restrict blood flow and have thin walls that allow gas exchange?

Alveoli

Veins

Arteries

Capillaries


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Question 5 (Multiple Choice Worth 1 points)

(07.02 MC)

Which of the following best compares the factors affecting blood flow that directly cause heart attack and stroke?

Both are caused by muscle damage in the heart that reduces blood flow to the brain.

Both are caused by accumulation of plaque in blood vessels that restricts blood flow to the heart.

Both are caused by a dislodged blood clot that clogs small vessels in the brain

Both are caused by blockage of blood flow in blood vessels that deprives cells of oxygen.


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Question 6 (Multiple Choice Worth 1 points)

(07.02 MC)

What would happen if the valves separating the chambers in a person's heart did not close?

The volume of blood pumped from the atria to the body would be reduced because blood would backflow into the ventricles.

The volume of blood pumped from the ventricles to the body would increase because blood would flow without restriction from the atria.

The volume of blood pumped from the ventricles to the body would be reduced because blood would backflow into the atria.

The volume of blood pumped from the atria to the body would increase because blood would flow without restriction from the ventricles.


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Question 7 (Multiple Choice Worth 1 points)

(07.02 HC)

A medical student is studying how the volume of blood in the circulatory system affects blood pressure. He measures the blood volume and pressure of two classmates, a man and a woman. He finds that the man has a higher blood volume but a lower blood pressure than the woman. He concludes that a person with low blood volume would tend to have high blood pressure. What additional factors should the student consider that would most likely affect blood pressure?

Differences in overall outlook on life

Differences in size and gender

Differences in the day's food intake

Differences in the amount of recent exercise


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Question 8 (Multiple Choice Worth 1 points)

(07.03 MC)

A man came to his doctor complaining of constipation. The doctor asked him if his urine was concentrated and dark yellow in color. The man replied that it was. Why did the doctor ask him about his urine?

Dark yellow, concentrated urine would indicate the man was dehydrated, which could cause constipation.

Dark yellow, concentrated urine could indicate a blockage in the intestine.

Dark yellow, concentrated urine could indicate poor circulation, which can cause constipation.

Dark yellow, concentrated urine could indicate the man's food intake was causing constipation.


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Question 9 (Multiple Choice Worth 1 points)

(07.03 HC)

A researcher did an experiment in which he had one group of people drink a liter of coffee in an hour and a control group of people drink a liter of water within the same amount of time. He then measured their urine output over the course of the next two hours. Both groups produced an average of 250 ml of urine per hour over that time period. He concluded that the coffee itself had no effect on urine output. Given his results, what else should he measure to identify the effects of coffee drinking?

He should also measure the concentration of caffeine in the coffee that the test subjects drink to find a correlation between urine output and caffeine.

He should also measure the size of the kidneys to see if any water not excreted as urine by his test subjects is being stored by the kidneys.

He should also measure the amount of water vapor exhaled by the test subjects to capture any water lost through the lungs.

He should also measure the amount of sweat and water in bowel movements produced by the test subjects to see if coffee contributes to water loss through other excretory channels.


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Question 10 (Multiple Choice Worth 1 points)

(07.03 MC)

When people have their gallbladders removed, their bodies no longer have a place to store bile, and the bile flows from the liver continuously. What effect might this have on their ability to digest fats?

There will be very little change since bile will still be present to emulsify fats.

Fats will be emulsified more efficiently with the constant flow of digestive enzymes.

It will be unlikely that they will be able to emulsify and digest fats.

Only small amounts of fats will get digested since high concentrations of bile enzymes are needed for efficient digestion.


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Question 11 (Multiple Choice Worth 1 points)

(07.03 MC)

When people are enduring a period of starvation, their bodies begin to remove villi from their small intestines. Once they have access to food again, their small intestines would

not be able to remove waste from their bodies

have more stomach acid than they could neutralize

have difficulty absorbing enough nutrients

not have enough enzymes to digest the food


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Question 12 (Multiple Choice Worth 1 points)

(07.05 LC)

Where are sperm cells stored after production?

Penis

Vas deferens

Epididymis

Urethra


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Question 13 (Multiple Choice Worth 1 points)

(07.05 MC)

Which of the following best describes the difference between the functions of the ovaries and the fallopian tubes?

Eggs are fertilized in the ovaries and form zygotes in the fallopian tubes.

Eggs are produced in the ovaries and fertilized in the fallopian tubes.

Eggs are produced in the ovaries and travel through the fallopian tubes to be fertilized in the uterus.

Eggs are fertilized in the ovaries and travel through the fallopian tubes to implant in the uterus.


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Question 14 (Multiple Choice Worth 1 points)

(07.05 MC)

Which of the following would be the latest in the development of a human fetus?

Bone starts to replace cartilage to form the beginnings of a skeleton.

The fetus grows to reach approximately eight centimeters in length.

Cells divide into the endoderm, mesoderm, and ectoderm.

The nervous system begins to develop and can control basic body functions.


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Question 15 (Multiple Choice Worth 1 points)

(07.05 MC)

In which of the following ways might the effects of a mutation in a skin cell be different from those of a mutation in a sperm cell?

Sperm cell mutations are more likely to get corrected since meiosis has two phases, while skin cell mutations have only the single phase of mitosis in which to be corrected.

A mutated sperm cell will always be destroyed during meiosis before it leaves the testes, while skin mutations remain within the skin.

There is little chance that a sperm mutation will affect the testes, while skin mutations almost always develop into cancer.

The mutation in the sperm cell could be passed on to offspring, while the skin cell mutation could only affect the individual.


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Question 16 (Multiple Choice Worth 1 points)

(07.06 MC)

Which of the following best describes an example of a specific immune response to infectious agents?

Antibodies bind to antigens on the infectious agents, which are then destroyed by lymphocytes.

Phagocytes surround the infectious agents, and then engulf and destroy them.

The infectious agents cause the body to release histamine, which causes inflammation and swelling.

Sweat creates an acidic environment, which prevents reproduction of the infectious agents.


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Question 17 (Multiple Choice Worth 1 points)

(07.06 MC)

Which of the following best describes steps that take place during a cell-mediated immune response?

Helper T cells recognize infected cells and divide, producing memory T cells and activating cytotoxic T cells.

B lymphocytes bind to antigens and divide to form plasma cells and memory B cells.

Memory B cells recognize antigens on a pathogen’s surface and produce plasma cells to destroy the pathogen.

Memory T cells recognize pathogens and divide to produce helper T cells that destroy foreign antigens.


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Question 18 (Multiple Choice Worth 1 points)

(07.06 HC)

Two colleagues that share the same office are exposed to the flu virus one week in January. Janet just recovered from the same flu virus two weeks earlier, while Mark has not been sick yet this winter. Which person do you expect would be more likely to become sick with this flu virus and why?

Janet: since she already had the flu, her immune system is weaker than Mark’s.

Janet: she will most likely get the flu again, and a more severe case of it.

Mark: he has not acquired any active immunity to the flu, and Janet has.

Mark: he has only passive immunity to the flu which will not benefit him in this case.


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Question 19 (Multiple Choice Worth 1 points)

(07.06 MC)

A nurse rubs alcohol like ethanol and isopropanol on a patient's skin before administering an injection. What could be a medical consequence of neglecting to clean the skin before puncturing it with the needle?

The nurse could contract a disease from the patient's skin.

The patient could develop an infection at the injection site.

The patient could have an allergic reaction to the needle.

The injection site may bleed more profusely than if it was cleaned.


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Question 20 (Multiple Choice Worth 1 points)

(07.06 MC)

Which of the following best describes the impact that infectious agents in one’s surroundings can have on the health of an individual?

They can bind with T cells and cause swelling and inflammation.

They can attack within cells and elicit a cell-mediated immune response.

They can destroy the body’s ability to fight infection after repeated exposure.

They can produce histamine and prevent body cells from reproducing

Answer 2

@ganeshie8

Answer 3

not good wid these friend :|

Answer 4

gurrr! okay-_-

Answer 5

nincompoop is very good at these, but hez offline

Answer 6

You shouldnt drop your entire homework here btw :P
If you're having trouble with every single question i'd say go see your teacher.

Answer 7

You wont have any luck when posting more than one question.

Answer 8

its a pretest.. nd thank you(: