OTC Exam 1 BCS 205 questions and
answers already passed
Define hemostasis - correct answer ✔✔When the body systems work together to maintain a
stable internal environment
Compare and contrast negative feedback with positive feedback. - correct answer ✔✔A
negative feedback loop opposes the change, and brings system back to normal.
A positive feedback loop is where the change is enhanced, bringing the system further from
normal.
Examples of Negative feedback loops - correct answer ✔✔Temperature, blood glucose, and
calcium levels.
Examples of positive feedback loops - correct answer ✔✔Child birth, blood clotting
·What are the 3 components of a feedback loop? - correct answer ✔✔receptor, control center,
effector
What does a receptor do? - correct answer ✔✔Senses change in the body
What does the control center do? - correct answer ✔✔Determines how the body needs to react
How does an effector work? - correct answer ✔✔Responds to signals and returns system to
normal range
· pH is a measure of the number of _________ in solution. - correct answer ✔✔H+ ions
, · A pH <7 is described as ________________. A pH >7 is described as _______________. -
correct answer ✔✔Acidic, basic
· If a patient's pH is 7.25, that patient would be in a state of __________________. - correct
answer ✔✔Acidosis
· A hydrogen acceptor in a solution is called a: - correct answer ✔✔Base
· What is the purpose of the bicarbonate, phosphorus, and protein buffer systems? - correct
answer ✔✔These systems resist changes in pH and prevent the systems from becoming to
acidic or basic.
· Which 2 systems of the body maintain the chemical buffer systems? - correct answer ✔✔Renal
and Respiratory systems
· What happens to the proteins of the body if you lose control of pH? Why is this dangerous?
What are the 4 major types of organic compounds in the human body? - correct answer ✔✔If
you lose control of the pH of the body, denaturation occurs, and can be lethal if not taken care
of immediately.
· What are the 4 major types of organic compounds in the human body? - correct answer ✔✔o
Carbohydrates
o Lipids
o Proteins
o Nucleic acids
· Amino acids are the monomers for...? - correct answer ✔✔Proteins
answers already passed
Define hemostasis - correct answer ✔✔When the body systems work together to maintain a
stable internal environment
Compare and contrast negative feedback with positive feedback. - correct answer ✔✔A
negative feedback loop opposes the change, and brings system back to normal.
A positive feedback loop is where the change is enhanced, bringing the system further from
normal.
Examples of Negative feedback loops - correct answer ✔✔Temperature, blood glucose, and
calcium levels.
Examples of positive feedback loops - correct answer ✔✔Child birth, blood clotting
·What are the 3 components of a feedback loop? - correct answer ✔✔receptor, control center,
effector
What does a receptor do? - correct answer ✔✔Senses change in the body
What does the control center do? - correct answer ✔✔Determines how the body needs to react
How does an effector work? - correct answer ✔✔Responds to signals and returns system to
normal range
· pH is a measure of the number of _________ in solution. - correct answer ✔✔H+ ions
, · A pH <7 is described as ________________. A pH >7 is described as _______________. -
correct answer ✔✔Acidic, basic
· If a patient's pH is 7.25, that patient would be in a state of __________________. - correct
answer ✔✔Acidosis
· A hydrogen acceptor in a solution is called a: - correct answer ✔✔Base
· What is the purpose of the bicarbonate, phosphorus, and protein buffer systems? - correct
answer ✔✔These systems resist changes in pH and prevent the systems from becoming to
acidic or basic.
· Which 2 systems of the body maintain the chemical buffer systems? - correct answer ✔✔Renal
and Respiratory systems
· What happens to the proteins of the body if you lose control of pH? Why is this dangerous?
What are the 4 major types of organic compounds in the human body? - correct answer ✔✔If
you lose control of the pH of the body, denaturation occurs, and can be lethal if not taken care
of immediately.
· What are the 4 major types of organic compounds in the human body? - correct answer ✔✔o
Carbohydrates
o Lipids
o Proteins
o Nucleic acids
· Amino acids are the monomers for...? - correct answer ✔✔Proteins
