what is an oxygenated blood?where does it come from?
Answers
Answer:
Oxygenated blood can be simply defined as a blood cell with large percentage of oxygen and low in carbon dioxide. It appears bright red in colour and travels away from the heart to different parts of the body.
Explanation:
The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium.
When hemoglobin picks up an oxygen molecule, its shape changes to hold the oxygen. This conformation of the protein absorbs and reflects certain wavelengths of light to look bright red. When hemoglobin releases oxygen, its shape is modified and appears darker red. Oxygenated or not, your blood is always red.
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Answer:
Answer:It's called two way street because the stem transfers water and minerals to the leaves in upward direction for the photosynthesis to take place by xylem.At the same time it transfers the food (glucose) from the leaves to other parts of the plant in downward direction by phloem. That's why it is called a two way street
Explanation: