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Homeostatic Processes Answers

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1
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Which of the following individuals is maintaining homeostasis?

A
Karen’s heart rate is faster than the normal range.
B
Bruce is vomiting uncontrollably and losing large amounts of water.
C
Samantha is sweating while out for a jog.
D
Evelyn cannot catch her breath because her respiration rate is racing.
2
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Which statement best describes why the body tries to maintain homeostasis?

A
The body must maintain homeostasis so that the internal environment matches the outside environment
B
The body must maintain homeostasis so that the internal environment stays the same if the outside environment changes.
C
The body must maintain homeostasis to make sure that a person’s heart and respiration rates are the same.
3

Question text not available

Answers:
may not produce enough insulin.:pancreas
.:hypothalamus
raises your risk for heart disease.:high blood pressure
4

Use the drop-down tool to select the best answers.In order for the body to know what is happening on the outside, there is a control centereffector✔ sensor that helps gather information and detect changes.

Answers:
that helps gather information and detect changes.:sensor
that processes the information and determines a response.:control center
.:effector
5

The information about the changes is sent to a effector sensor✔ control center that processes the information and determines a response.

A
effector
B
sensor
C
✔ control center
6

The part of the body that carries out that response is the ✔ effectorcontrol center sensor.

A
✔ effector
B
control center
C
sensor
7

Which of the following are true about negative feedback mechanisms? Check all that apply.

A
They control the muscular contractions during childbirth.
B
They make internal changes to achieve a set point.
C
They let you know you need to put on a jacket in cold weather.
D
They help adjust the external environment.
8

Which of the following are true about positive feedback mechanisms? Check all that apply.

A
They help to form blood clots in response to an open wound.
B
They respond to changes by pushing back in the opposite direction.
C
They cause the body to sweat when the outside temperature is too warm.
D
They accelerate a process that has already started.
9

Use the drop-down tool to select the best answers.Positive✔ Negative feedback mechanisms try to adjust internal conditions until they match a set point.

Answers:
feedback mechanisms try to adjust internal conditions until they match a set point.:Negative
feedback mechanism so it can continue to form the clot.:positive
10

Blood clotting relies on a ✔ positivenegative feedback mechanism so it can continue to form the clot.

A
✔ positive
B
negative
11

Which of the following are accurate facts about chemical processes? Check all that apply.

A
Chemical processes are used to regulate glucose.
B
Chemical processes involve harmful substances.
C
Chemical processes monitor external conditions only.
D
Chemical processes help people maintain a balanced pH.
12

The pH levels of the body can be regulated through

A
sweating
B
buffers.
C
temperature changes.
D
insulin secretion.
13

Glucose that circulates in the bloodstream is kept within a normal range by

A
being used up for energy or being stored in the form of glycogen.
B
the hypothalamus raising or lowering internal body temperature.
C
a positive feedback mechanism controlled by the hormone insulin.
D
the enlarging of blood vessels when body temperature goes beyond the set point.
14

Use the drop-down tool to select the best answers.If you wanted to test the measure of someone inhaling and exhaling, you would need to find out their ✔ respiration rateheart rateblood pressure.

Answers:
.:respiration rate
.:blood pressure
.:physical conditioning
15

If you wanted to find out a measure related to the arteries, you would test someone’s respiration rate✔ blood pressureheart rate.

A
respiration rate
B
✔ blood pressure
C
heart rate
16

Some of the factors that impact heart rate include gender, age, and ✔ physical conditioningappetitepersonality.

A
✔ physical conditioning
B
appetite
C
personality
17

If a person has hypothermia, which of the following is true?

A
The person was exposed to really hot temperatures.
B
The person has a hard time staying hydrated.
C
The person is losing heat faster than the body can produce it.
D
The person’s pancreas is not making enough insulin.
18

Use the drop-down tool to select the best answers.In a person with diabetes, the heartkidneysintestines✔ pancreas may not produce enough insulin.

Answers:
may not produce enough insulin.:pancreas
.:hypothalamus
raises your risk for heart disease.:high blood pressure
19

A person who is unable to regulate body temperature might have a defect in the lungsmusclespancreas✔ hypothalamus.

A
lungs
B
muscles
C
pancreas
D
✔ hypothalamus
20

Increased low heart rateinsulin resistancehigh water intake✔ high blood pressure raises your risk for heart disease.

A
low heart rate
B
insulin resistance
C
high water intake
D
✔ high blood pressure

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