D. 30 minutes per day, 5 days a week :)
Aveoli are the small sacks in the lungs, where gases such as oxygen and carbon dioxide are transferred into/out of the blood stream. Blood would be the answer, as blood is not transferred through alveoli; it stays in blood vessels and is oxygenated at the alveoli.
Smoking is the action or habit of inhaling and exhaling the smoke of tobacco by sucking on the end of a lit cigarette, cigar, pipe, etc.
Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease
Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis.
Answer:
(3) results in the production of more ATP in muscle cells
Explanation:
When exercising, Oxygen is introduced to the muscle cells via the Red Blood Cells. Hemoglobin which is carried by the Red Blood Cells binds with these oxygen to to supply the muscle cells with oxyenated blood. Thus, as blood flows into the muscle cell during exercise, there is increase in the rate at which oxygen is carried to the muscle cells.
On the otherhand, Carbondioxide is not carried to the muscles cells but it is diffused out of the bloodstream as bicarbonate ion (HCO⁻₃).
The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that: results in the production of more ATP in muscle cells. Thi s is becuase, Adenosine triphosphate (ATP) is a compound with high potential energy. The synthesize ATP molecules in the muscle cells is gotten from complex molecules such as carbohydrate, proteins and fats. So during exercise, there are more production of more ATP in the muscle cells to assist in the degradation of carbohydrate, proteins and fats that give rise to pyruvate, amino acids and fatty acids respectively.
DNA contains the genetic code used to make proteins
