Physiology Questions

respiratory rate _____tidal volume ______ during change from aerobic respiration to anaerobic respiration

what determines ceiling of exercise capacity?

during aerobic exercise what substrate is broken down for energy

at rest what substrate is broken down for energy

Tubular reabsorption: Substances transported to interstitial fluid and reabsorbed into peritubular capillaries (found near the tubules) include:

What are the types of fat-soluble vitamins?

during low to moderate intensity aerobic exercise, there is an increase in ventilation associated with

at higher work intensity, aerobic metabolism is not sufficient to keep up with the formation of lactic acid, then

respiratory passages are not useful for gas exchange and can be called

during low to moderate intensity exercises, lactic acid does not accumulate because

that blood being pumped to the lungs has a lower pressure of oxygen. Why will that cause an increase in oxygen consumption if the venous blood has a lower pressure of oxygen (bc more oxygen has been extracted by the muscle)?

What happens to the ATP supply by oxidative phosphorylation when we begin exercise? Is there an immediate or delayed increase?

What happens to the ATP demand when we begin exercise? Is there an immediate or delayed increase?

Extracellular signalling molecules are synthesized andreleased by signalling cells. Signalling molecules operateover what distances:

What produces a specific response only intarget cells with receptors specific to the signallingmolecules?

During low/moderate intensity exercise, VCO2 is ____________ than VO2

Tidal volume and respiratory rate _____________ with exercise

What does decreasing values of PCO2 (in blood) at the end of exercise suggest?

Phosphocreatine: ___________ power and __________ capacity

Breathing Reserve equals _________% in normal lungs, and is reduced in lung disease