During exercise, skeletal muscles increase their metabolic activity, and capillary blood flow increases. This would filtration in these capillaries. The reason for this is a hydrostatic pressure would occur in the capillaries during exercise which would push substances out into the tissues by filtration.

increase

an elevated

Explanation:

During heavy exercise, the blood flow in the arteries increases, which eventually creates a net increase in the hydro static pressure of the capillaries. this dilates the blood vessels more mainly at the pre-capillary region than the post capillary region. the capillary hydro-static pressure governs the force that helps to filter blood and  moves out fluid from the capillaries to the tissues.  

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.