How do enzymes speed up chemical reactions 3 ways
also one of them is lower activation energy and idk what else

Enzymes lower the activation energy of a reaction by...

Explanation:

Enzymes are complex, folded protein structures - in biological processes they facilitate chemical reactions.

Molecules usually collide at random, and specific chemical reactions (breaking and forming bonds) require the correct molecular orientation and energy to react. Enzymes..

Time and large amounts of energy, are needed to arrive at these orientations to allow the reactions to occur- this is a barrier called activation energy.

Thus, enzymes help by lowering the activation energy needed for the reaction (e.g. hydrolyzing a bond) to progress, and they increase the rate of chemical reactions.

i love you and i play fortnite add me rod0107

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.