STUDENTS SUCCESS
Revision Examination Tests
“Come all for this Greatness”
... 100% Correct Ans ...
BIO 256 EXAM 3 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS 2024- 2025
what is the major function of the sarcoplasmic reticulum in muscle contraction?
Ans: regulates intracellular calcium levels
Quiz an elaborate network of membranes in skeletal muscle cells that functions in
calcium storage is the?
Ans: sarcoplasmic reticulum
Quiz a motor neuron and the myofibers it innervates is known as a(n)?
Ans: motor unit
Quiz the first thing that stops a muscle contraction after a motor neuron stops
releasing acetylcholine is?
Ans: acetocholinesterase destroys the acetylcholine as it is removed from the
membrane receptors
Quiz the role of calcium ions in muscle contraction is to
Ans: bind to regulatory sites on troponin, changing the configuration and contraction
Quiz the number of muscle fibers in a contracted state in an otherwise relaxed
muscle is known as its?
Ans: muscle tone
Quiz in an isotonic contraction the muscle...
Ans: changes in length and moves the load
Quiz when stimuli bring about more and more fibers in a contracted state, this is
called
, Ans: recruitment
Quiz oxygen is stored in myofibers on/in
Ans: myoglobin
Quiz the blood vessel type removing carbon dioxide and wastes from the tissues is
Ans: vein
Quiz the mechanism of contraction in smooth muscle parallels that of skeletal
muscle in the following ways EXCEPT
Ans: the calcium-mediated regulation of contraction differs
Quiz which blood protein carries blood from the lungs to tissue
Ans: hemoglobin
Quiz oxygen is transported by red blood cells, it is carried by
Ans: attaching to the iron ion heme
Quiz which of the following is NOT required for erythropoiesis
Ans: production of vacuoles
Quiz which would be associated with prematurely ruptured erythrocytes
Ans: hemolytic anemia
Quiz acute leukemia is more common in ____ people; chronic leukemia is more
common in _____ people
Ans: younger, older
Quiz which is the correct sequence of events in a cardiac myocardium action
potential
Ans: na+ inward flux --> ca++ inward flux --> k+ outward flux
Quiz the normal neutrophil percentage of white blood cells is
Ans: above 50%
Quiz cardiac ischemia can result in
Ans: a myocardial infarction
Revision Examination Tests
“Come all for this Greatness”
... 100% Correct Ans ...
BIO 256 EXAM 3 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS 2024- 2025
what is the major function of the sarcoplasmic reticulum in muscle contraction?
Ans: regulates intracellular calcium levels
Quiz an elaborate network of membranes in skeletal muscle cells that functions in
calcium storage is the?
Ans: sarcoplasmic reticulum
Quiz a motor neuron and the myofibers it innervates is known as a(n)?
Ans: motor unit
Quiz the first thing that stops a muscle contraction after a motor neuron stops
releasing acetylcholine is?
Ans: acetocholinesterase destroys the acetylcholine as it is removed from the
membrane receptors
Quiz the role of calcium ions in muscle contraction is to
Ans: bind to regulatory sites on troponin, changing the configuration and contraction
Quiz the number of muscle fibers in a contracted state in an otherwise relaxed
muscle is known as its?
Ans: muscle tone
Quiz in an isotonic contraction the muscle...
Ans: changes in length and moves the load
Quiz when stimuli bring about more and more fibers in a contracted state, this is
called
, Ans: recruitment
Quiz oxygen is stored in myofibers on/in
Ans: myoglobin
Quiz the blood vessel type removing carbon dioxide and wastes from the tissues is
Ans: vein
Quiz the mechanism of contraction in smooth muscle parallels that of skeletal
muscle in the following ways EXCEPT
Ans: the calcium-mediated regulation of contraction differs
Quiz which blood protein carries blood from the lungs to tissue
Ans: hemoglobin
Quiz oxygen is transported by red blood cells, it is carried by
Ans: attaching to the iron ion heme
Quiz which of the following is NOT required for erythropoiesis
Ans: production of vacuoles
Quiz which would be associated with prematurely ruptured erythrocytes
Ans: hemolytic anemia
Quiz acute leukemia is more common in ____ people; chronic leukemia is more
common in _____ people
Ans: younger, older
Quiz which is the correct sequence of events in a cardiac myocardium action
potential
Ans: na+ inward flux --> ca++ inward flux --> k+ outward flux
Quiz the normal neutrophil percentage of white blood cells is
Ans: above 50%
Quiz cardiac ischemia can result in
Ans: a myocardial infarction
