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CQ: During cross-bridge cycling, the energy released from ATP dephosphorylation is used for specific process? a. the power stroke, or pulling together of the actin filaments when myosin is bound to actin b. the release of the myosin head from actin c. the cocking back of the myosin head when it is not bound to actin d. holding the myosin head in a tight binding position to actin correct answers c. the cocking back of the myosin head when it is not bound to actin CQ: which of the following...

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18 pages

Written in 2022/2023

Grade A+

ProPerfomer

Which of the following are involved in normal transmission of a neuronal signal from the brain to the skeletal muscles? a. Voltage-gated sodium ion channels. b. Ligand-gated ion channels. c. Nicotinic cholinergic channels. d. All of the above. e. Only A and C. correct answers d. All of the above. Which of the following are examples of active transport. a. Na+ moving across the cell membrane due to the Na+/K+ ATPase pump. b. Cl- moving across the cell membrane through a ligand-gated ch...

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18 pages

Written in 2022/2023

Grade A+

ProPerfomer

HPHY 322 Physiology Exam Questions And Answers 100% Verified ...

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15 pages

Written in 2025/2026

Grade A+

Zayla

HPHY 322 Quiz 1 Questions And Complete Answers 100% Pass ...

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2 pages

Written in 2025/2026

Grade A+

Zayla

HPHY 322 Quiz 7 Questions And Accurate Answers 100% Pass ...

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4 pages

Written in 2025/2026

Grade A+

Zayla

Hphy 322 Exam 2 Questions And Accurate Answers 100% Pass ...

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10 pages

Written in 2025/2026

Grade A+

Zayla

HPHY 322 Physiology Midterm 1 (CORRECTLY ANSWERED) HPHY 322 Midterm 1 (Questions with complete answers)

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6 items

ProPerfomer

oppose, concentration correct answers the Nernst equation calculates the electrical membrane potential required to ____ a single ion's ____ gradient relative refractory period correct answers the period shortly after the firing of a nerve fiber when partial repolarization has occurred and a stimulus can stimulate a second response absolute refractory period correct answers the period immediately following the firing of a nerve fiber when it cannot be stimulated no matter how positive a st...

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3 pages

Written in 2022/2023

Grade A+

ProPerfomer

What is simple diffusion? correct answers Ion movement across the membrane (lipid soluble or a protein channel with varying levels of specificity) What is facilitated diffusion? correct answers Ion movement that requires interaction with protein to move across membrane What is active transport? correct answers Ion movement across membrane that requires interaction with a protein and energy What circumstance requires active transport? correct answers Movement against a gradient What d...

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6 pages

Written in 2022/2023

Grade A+

ProPerfomer

Explain the importance of the cell membrane correct answers selective permeability -conducts ions and nutrients -hydrophilic and hydrophobic parts' -transmembrane proteins allow for molecules to be carried across fine vs. crude touch correct answers fineable to localize and feel where you are being touched crude: feels the sensation Simple vs. facilitated diffusion correct answers Simple: doesn't require a carrier because the ions are not moving against the concentration gradient Fa...

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20 pages

Written in 2022/2023

Grade A+

ProPerfomer

Cell membrane correct answers Lipid bilayer that is selectively permeable to small lipid soluble molecules, creates barrier between intracellular and extracellular spaces Ion channel proteins correct answers proteins in the cell membrane that allow water and ions to pass through diffusion correct answers movement of ions across membrane with no extra energy required Simple diffusion correct answers ion movement across the membrane (directly through the bilayer for lipid soluble molecule...

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7 pages

Written in 2022/2023

Grade A+

ProPerfomer