Answer:
False
Explanation:
Myocardium's oxygen and nutrients are provided by coronary arteries. Coronary arteries are outside the heart and they wrap the whole heart to provide oxygen and nutrients.
Heart needs the continuous oxygen and nutrient supply for proper functioning like any other tissue of body. Any problem in coronary artery will lead to heart problem such as myocardial infarction.
The blood present inside the heart chambers does not provide any oxygen or nutrients to heart.
Answer:No se Explanation: Dicelo a tu corazon
Enzymes are affected by changes in pH. The most favorable pH value - the point where the enzyme is most active - is known as the optimum pH