HPEX 375 Exam 1
What factors can affect performance correct
answersDiet CNS function
Strength/
skill
Environme
nt
Energy Production Anaerobic
sources Aerobic sources
The higher the intensity the
the duration correct
answersshorter
AV Hill importance correct
answersheat production during
muscle contraction
Meyerhof importance correct answersrelationship of O2 consumption and
lactic acid in the muscle
Krogh correct answersfunction of capillary circulation
Douglas correct answersrole of O2 and lactic acid in control of breathing
during exercise Haldane correct answersCO2 in control of breathing
Bohr correct answersO2 binding to hemoglobin
Homeostasis vs steady state correct answershomeostasis- constant
and normal maintenance of internal environment
steady state- unchanging but not normal
Intracellular control systems correct answersprotein breakdown and
synthesis energy production
maintenance of store nutrients
Organ systems correct answerspulmonary and circulatory systems
components of a biological control system correct
answerssensor/receptor control center
effector
Negative feedback correct answersresponse reverses the initial
disturbance in homeostasis
positive feedback correct answersresponse increases the original
stimulus
, System with large gain... correct answersmore capable of maintaining
homeostasis (pulmonary and cardiovascular)
Example of control system resulting in disease correct answersType 1
diabetes: damage to beta cells in the pancreas
insulin no longer released into the
blood results in hyperglycemia
How does exercise disrupt homeostasis correct answerschanges in pH, O2,
CO2, and temp
Adaptation correct answerschange in structure or function of cell or
system, improving ability to maintain homeostasis
Acclimatization correct answersadaptation to environmental stresses (heat
stress in hot environment
Cell signaling correct answerscommunication between cells using chemical
messengers Intracrine signaling correct answerschem msgnr in cell triggers
response
juxtacrine signaling correct answerschem msngr passed between 2
connected cells autocrine signaling correct answerschemical messenger
acts on the same cell paracrine signaling correct answerschem msngr
acts on nearby cells
endocrine signaling correct answerschem msngr released into the
blood and only affects cells with specific receptors
stress proteins correct answerscells synthesize these when homeostasis is
disrupted (heat shock proteins in the cell)
Cellular protein synthesis correct answersexercise induced protein
synthesis improves ability of cells to maintain homeostasis
How are cell signaling pathways affected by exercise correct
answersresistance and endurance exercise promote different pathways
Metabolism correct answerssum of all chemical reactions that occur
in the body Anabolic correct answerssynthesis of molecules
Catabolic correct answersbreakdown of molecules
What factors can affect performance correct
answersDiet CNS function
Strength/
skill
Environme
nt
Energy Production Anaerobic
sources Aerobic sources
The higher the intensity the
the duration correct
answersshorter
AV Hill importance correct
answersheat production during
muscle contraction
Meyerhof importance correct answersrelationship of O2 consumption and
lactic acid in the muscle
Krogh correct answersfunction of capillary circulation
Douglas correct answersrole of O2 and lactic acid in control of breathing
during exercise Haldane correct answersCO2 in control of breathing
Bohr correct answersO2 binding to hemoglobin
Homeostasis vs steady state correct answershomeostasis- constant
and normal maintenance of internal environment
steady state- unchanging but not normal
Intracellular control systems correct answersprotein breakdown and
synthesis energy production
maintenance of store nutrients
Organ systems correct answerspulmonary and circulatory systems
components of a biological control system correct
answerssensor/receptor control center
effector
Negative feedback correct answersresponse reverses the initial
disturbance in homeostasis
positive feedback correct answersresponse increases the original
stimulus
, System with large gain... correct answersmore capable of maintaining
homeostasis (pulmonary and cardiovascular)
Example of control system resulting in disease correct answersType 1
diabetes: damage to beta cells in the pancreas
insulin no longer released into the
blood results in hyperglycemia
How does exercise disrupt homeostasis correct answerschanges in pH, O2,
CO2, and temp
Adaptation correct answerschange in structure or function of cell or
system, improving ability to maintain homeostasis
Acclimatization correct answersadaptation to environmental stresses (heat
stress in hot environment
Cell signaling correct answerscommunication between cells using chemical
messengers Intracrine signaling correct answerschem msgnr in cell triggers
response
juxtacrine signaling correct answerschem msngr passed between 2
connected cells autocrine signaling correct answerschemical messenger
acts on the same cell paracrine signaling correct answerschem msngr
acts on nearby cells
endocrine signaling correct answerschem msngr released into the
blood and only affects cells with specific receptors
stress proteins correct answerscells synthesize these when homeostasis is
disrupted (heat shock proteins in the cell)
Cellular protein synthesis correct answersexercise induced protein
synthesis improves ability of cells to maintain homeostasis
How are cell signaling pathways affected by exercise correct
answersresistance and endurance exercise promote different pathways
Metabolism correct answerssum of all chemical reactions that occur
in the body Anabolic correct answerssynthesis of molecules
Catabolic correct answersbreakdown of molecules
