WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
1. Each myosin head has a binding site for: One ATP and One Actin
2. The contraction
cycle is initiated by the rise in released from
the sacroplasmic reticulum (SR).: Ca2+
3. The hydrolysis of ATP causes myosin to immediately: rotate into a position
(cocked) to bind to actin
4. Put these events in the correct chronological sequence
1. Net influx of sodium into muscle cell.
2. Transverse tubules bring action potentials into the interior of the
cell
3. Acetylcholine binds to receptors on the muscle cell
4. Ca2+ is released from the sarcoplasmic reticulum: 3, 1, 2, 4
5. When a skeletal muscle genereates enough force during
contraction to short- en: the sarcomere and I band will shorten
6. The I band contains: Thin filaments only
7. The function of transverse tubules is to: Rapidly conduct action potentials to the
interior of the muscle cell
8. The molecular event that occures immediately after the power
stroke is the: Release of the ADP from the myosin
9. One of the treatment methods for Myasthenia Gravis is to
increase the concentration of the neurotransmitter in the
neuromuscular junctions. Which of the following neurotransmitter
will the medicine increase?: Acetylcholine
10. The binding of acetylcholine to its receptor at the
neuromuscular junction causes the opening of a: Channel for both Na+
and K+
11. The action potential traveling along the t-tubule changes the
conformation of the: DHP receptor
12. the
relaxation of skeletal muscle relies on the activity of the ,
which decreases cytoplasmic calcium concentration.: Ca2+ -
ATPase
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
13. A student was studying her notes on muscle concentration
which reads "power stroke" what else would her notes say about this
topic?: Myosin heads pulls actin filaments towards the M line
14. After death rigor mortis sets in where body is stiff. This occurs
because thick and thin filaments can't detach. Which of the following is
the cause?: Cross-bridge form but can't release (needs ATP)
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
15. The H zone contains: Thick filaments only
16. What does "calcium induce calcium release" mean?: The process by
which extracellular Ca2+ triggers the release of stored Ca2+ from the sarcoplasmic reticulum
17. In MG, auto antibodies destroy the acetylcholine receptors on
muscle cell, which of the following is destroyed by the disease?: The binding of
ACH to its receptor activates the muscle and causes a muscle contraction. So, it blocks/destroys
ACH receptors. No binding, no contraction
18. In order for high-force crossbridges to form in contracting
skeletal muscle, calcium must: bind to troponin which moves the tropomyosin.
19. Which of the following hormones and their functions is
mismatched: FSH - stimulates the hypothalamus
20. Dy
sfunction / lack of Glucuronyl bilirubin transferase would result in :
The skin can take on a yellow color (jaundice)
21. Which of the following enzyme is matched incorrectly to it's
function?: DNA polymerase III- adds nucleotides to the lagging strand
22. Jim got in a 5-car accident, damage to which of the following
will cause an issue with Vit D activation?: Kidneys and liver
23. A patient has a pancreatic cancer which requires total
reaction (removal of the pancreas), which of the following would the
patient not be able to do as a consequence?: Produce inslin to regulate blood
sugar
24. Lack or
dysfunction of Heme Oxygenase would result in : negative
hemolytic anemia, low bilirubin, and hyperinflammation
25. A anorexic girl would have difficulty absorbing
vitamins because these vitamins are all soluble vitamins.:
Zinc, vitamin D, copper, selenium, and vitamin B1 (A, D, E, & K fat soluble vitamins)
26. Which is NOT a characteristic of adaptive immunity?: nonspecific
immunity
27. Cells of the mononuclear phagocyte system include: Both a
and b ( monocyes & promonoctes- monocytes ¯ophage)
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
28. Opsonins function by: marking or tagging pathogens so phagocytes can find and
ingest them
29. Stem cells that will form B lymphocytes are found in the: Bone
marrow
30. The initial cellular defense against pathogens are the: Phagocyte
31. Chemical signals that attract immunce cells are known as:
Chemotaxins
32. The cells responsible for cell-mediated immunity are the: T
lymphocytes
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
1. Each myosin head has a binding site for: One ATP and One Actin
2. The contraction
cycle is initiated by the rise in released from
the sacroplasmic reticulum (SR).: Ca2+
3. The hydrolysis of ATP causes myosin to immediately: rotate into a position
(cocked) to bind to actin
4. Put these events in the correct chronological sequence
1. Net influx of sodium into muscle cell.
2. Transverse tubules bring action potentials into the interior of the
cell
3. Acetylcholine binds to receptors on the muscle cell
4. Ca2+ is released from the sarcoplasmic reticulum: 3, 1, 2, 4
5. When a skeletal muscle genereates enough force during
contraction to short- en: the sarcomere and I band will shorten
6. The I band contains: Thin filaments only
7. The function of transverse tubules is to: Rapidly conduct action potentials to the
interior of the muscle cell
8. The molecular event that occures immediately after the power
stroke is the: Release of the ADP from the myosin
9. One of the treatment methods for Myasthenia Gravis is to
increase the concentration of the neurotransmitter in the
neuromuscular junctions. Which of the following neurotransmitter
will the medicine increase?: Acetylcholine
10. The binding of acetylcholine to its receptor at the
neuromuscular junction causes the opening of a: Channel for both Na+
and K+
11. The action potential traveling along the t-tubule changes the
conformation of the: DHP receptor
12. the
relaxation of skeletal muscle relies on the activity of the ,
which decreases cytoplasmic calcium concentration.: Ca2+ -
ATPase
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
13. A student was studying her notes on muscle concentration
which reads "power stroke" what else would her notes say about this
topic?: Myosin heads pulls actin filaments towards the M line
14. After death rigor mortis sets in where body is stiff. This occurs
because thick and thin filaments can't detach. Which of the following is
the cause?: Cross-bridge form but can't release (needs ATP)
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
15. The H zone contains: Thick filaments only
16. What does "calcium induce calcium release" mean?: The process by
which extracellular Ca2+ triggers the release of stored Ca2+ from the sarcoplasmic reticulum
17. In MG, auto antibodies destroy the acetylcholine receptors on
muscle cell, which of the following is destroyed by the disease?: The binding of
ACH to its receptor activates the muscle and causes a muscle contraction. So, it blocks/destroys
ACH receptors. No binding, no contraction
18. In order for high-force crossbridges to form in contracting
skeletal muscle, calcium must: bind to troponin which moves the tropomyosin.
19. Which of the following hormones and their functions is
mismatched: FSH - stimulates the hypothalamus
20. Dy
sfunction / lack of Glucuronyl bilirubin transferase would result in :
The skin can take on a yellow color (jaundice)
21. Which of the following enzyme is matched incorrectly to it's
function?: DNA polymerase III- adds nucleotides to the lagging strand
22. Jim got in a 5-car accident, damage to which of the following
will cause an issue with Vit D activation?: Kidneys and liver
23. A patient has a pancreatic cancer which requires total
reaction (removal of the pancreas), which of the following would the
patient not be able to do as a consequence?: Produce inslin to regulate blood
sugar
24. Lack or
dysfunction of Heme Oxygenase would result in : negative
hemolytic anemia, low bilirubin, and hyperinflammation
25. A anorexic girl would have difficulty absorbing
vitamins because these vitamins are all soluble vitamins.:
Zinc, vitamin D, copper, selenium, and vitamin B1 (A, D, E, & K fat soluble vitamins)
26. Which is NOT a characteristic of adaptive immunity?: nonspecific
immunity
27. Cells of the mononuclear phagocyte system include: Both a
and b ( monocyes & promonoctes- monocytes ¯ophage)
, WCU PHSY 261 FINAL REVIEW QUESTIONS WITH ALL
UPGRADED CORRECT SOLUTIONS.ALREADY GRADE A+
28. Opsonins function by: marking or tagging pathogens so phagocytes can find and
ingest them
29. Stem cells that will form B lymphocytes are found in the: Bone
marrow
30. The initial cellular defense against pathogens are the: Phagocyte
31. Chemical signals that attract immunce cells are known as:
Chemotaxins
32. The cells responsible for cell-mediated immunity are the: T
lymphocytes
