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BMSC 230 Midterm 1 questions with correct answers 2024/2025
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BMSC 230 Midterm 1 questions with correct answers 2024/2025
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BMSC 230 Midterm 1How is the ECG generated?
what does each component of the ECG represent?
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what are some of the pathophysiological conditions associated with the onset of ECG
abnormality?
What is an ECG?
recording of the biopotentials generated by myocardium during cardiac cycle
why is ECG a vector?
has magnitude and direction
what does ECG record?
reflection of rhythmic electrical depolarization and repolarization wave (action potential) that
initiates contraction (atria) and relaxations (ventricles)
what is depolarization?
contraction, + recording
, What is repolarization?
downward deflection, relaxations -> - recording
anabolism
units make macromolecules, requires energy
catabolism
breaking down molecules, produces energy
functions of metabolism
1. make ATP
2. convert food into necessary building block molecules
3. assemble into macromolecules
4. synthesize and degrade biomolecules that have specialized function in cells
glycolysis produces
2 pyruvate, 2 ATP, 2 NADH
types of metabolic pathways
linear, branched, circular
metabolic pathways can be interconnected. t/f
t
1st committed step is often the _______ rxn in pathway, usually a point of ________ for that
pathway
first, regulation
reactions that are regulated are often ___________ steps
rate-limiting
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