QUESTIONS
Question 1
The body’s response to blood loss is an example of ____________.
Question 2
The maintenance of an organism’s constant internal environment is known as ____________.
Question 3
Match the characteristics of a variable below to the correct variable 9Regulated or Controlled).
Regulated Variable
Controlled Variable.
Question 4
Changes in the external environment will alter the ___________, which is detected by the ____________, and this information is sent to the control center.
Question 5
Which of the following statements about homeostasis is FALSE?
- Illness can result if homeostasis is disrupted
- The control center orchestrates appropriate responses to deviations from the set point.
- The primary mechanism to maintain homeostasis.
- The organ systems work together to maintain homeostasis.
- Homeostasis is the maintenance of the internal environment.
Question 6
Match the variable to the proper homeostatic regulatory mechanism.
Negative feedback
Positive feedback.
Question 7
Arrange the parts of a typical homeostatic mechanism in the correct order (top to bottom) below.
Response
Receptors
Effectors (muscle or glands)
Control center (set point)
Question 8
Which of the following is NOT an example of a negative feedback mechanism in the human body?
- When the body is deprived of food, metabolism slows down to conserve energy.
- Secreting insulin after a meal to return blood glucose levels back towards normal
- Retention is fluid leading to retention of more fluid.
- Increasing heart rate and force of contraction when blood pressure falls.
- Shivering when body temperature falls below normal.
Question 9
Which of the following is required in order for the body to maintain homeostasis? (NOTE: Choose all that apply, as more than one answer may be correct).
- Taking a multivitamin every day
- Organ system integration
- A daily intake of 1 to 2 liters of water per day.
- Any input to the body equals the amount of output by the body
- Eating a well-balanced meal.
ANSWERS
Question 1
The body’s response to blood loss is an example of ____________.
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