The respiratory system in anatomy and phsycology, are organs and deliver oxygen to the circulatory system to be transported to all body cells. the resporatory and circulatory system work together to deliver oxygen to cells and remove carbon dioxide in a two-phase process called respiration.
the first phase of respiration begins with breathing in, or imalation.Inhalation brings air from outside the body into the lungs. Oxygen in the air moves from the lungs through blood vessels to the heart, which pumps the oxygen-rich blood to all the body. Oxygen then moves from the bloodstream into cells, which completes the first phase of respiration. In the cells, oxygen is used a separate energy-producing process called cellular respiration, which produces carbon dioxide as a by product.
the second phase of respiration begins with the movemnet of carbon dioxide from the cells to the bloodstream. The bloodstream cerries carbon dioxide to the heart, which pumps the carbon dioxide-laden blood to the lungs. In the lungs, breathing out, or exhalation, removes carbon dioxide from the body, thus completingthe respiration cycle.
oxygen changes to carbon dioxide
the air goes from the lungs to the heart
carbon dioxide moves to the bloodstream
oxygen moves from bloodstream to the heart
oxygen moves from the bloodstream into cells
Mahasiswa/Alumni Universitas Sebelas Maret
Berdasarkan kalimat “Oxygen then moves from the bloodstream into cells, which completes the first phase of respiration” yang terdapat pada kalimat ke-4 di paragraf ke-2, dapat diketahui bahwa saat oksigen berpindah dari aliran darah ke dalam sel adalah saat berakhirnya fase pertama pernafasan sehingga pilihan jawaban (E) adalah yang paling tepat.
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