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Homeostasis
Heart Health
Blood and Body
Misc
100
A high respiratory rate usually indicates that a person’s body needs more ...?
Oxygen
100
In cells, aerobic respiration (cellular respiration in the presence of oxygen) produces more of which of the following substances? ATP or Glucose
ATP
100
Identify the process in body cells that directly requires oxygen. C_______ R_________
Cellular respiration
100
Which of the following most likely occurs in the body if the kidneys do not function properly? A. Nervous system functioning increases. B. Nitrogenous waste builds up in the blood. C. Other body organs do the work of the kidneys. D. Hormones are transported by the muscular system.
B. Nitrogenous waste builds up in the blood.
200
During exercise, a person’s muscles need a constant supply of ATP. To meet this need, the rate of which of the following processes increases? A. cellular respiration B. mitosis C. protein synthesis D. transcription
A. cellular respiration
200
Describe how a healthy person’s blood glucose level most likely changes after 45 minutes of intense exercise. Explain.
Blood glucose level drops because the glucose is used up by body cells to make ATP.
200
This structure in the circulatory system directly transports oxygen to body cells.
What is a capillary?
200
Laboratory tests can be used to evaluate how well a person’s liver is working. One test measures how well the liver removes a substance called bilirubin from the blood. Based on this information, which of the following describes bilirubin? A. Antibody B. Energy source C. Vitamin D. Waste product
D. Waste product
300
Which is an example of the human body maintaining homeostasis? The heart beats using cardiac muscle OR The breathing rate increases during exercise.
The breathing rate increases during exercise.
300
Atherosclerosis is a condition where arteries become narrow and lose flexibility as these cholesterol layers build up and harden. What is one way you can decrease the risk of atherosclerosis?
Eat more HDL (healthy fats) or exercise.
300
This type of cell is directly responsible for transporting oxygen to body cells.
Red Blood Cells
300
Besides producing cholesterol and bile, what is another function of the liver?
Remove toxins from blood
400
Provide an example of how exercise disrupts homeostasis in the body and how the body responds to restore homeostasis.
Temp increases --> Sweat --> Cool down Oxygen used up --> increase breaking and HR --> restore oxygen
400
What is the function of the heart?
To pump blood throughout the body.
400
Why must a heart connect to the superior vena cava and inferior vena cava (large veins)?
To remove carbon dioxide from blood stream.
400
Why must a heart be able to function at different speeds when a person is exercising and is at rest?
To maintain homeostasis. Your body needs more oxygen during exercise, so your heart needs to pump at a higher speed.
500
Why does the heart need to be connected to the pulmonary artery (artery connected to the lungs)?
To receive oxygen