Why is blood that flows from the lungs to the heart bright red rather than dark red?

Oxygen makes it red.

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Carbon dioxide makes it red.

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Gastric juices produce the red colour of the blood.

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The lungs add a pigment (dye) to blood as it flows through them.

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Solution

The correct option is
B

Oxygen makes it red.

1.The blood that flows from the lungs to the heart is oxygenated blood.
2.Inside lungs when deoxygenated blood (darker than oxygenated) reaches ,it gets oxygenated ,through exchange of gases which takes place through Alveoli present inside the lungs.

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Similar questions

Blood is red in colour. Oxygen-rich blood is bright red as it leaves the heart. When it returns to veins without oxygen, it turns blue. Does it mean that the haemoglobin is turned off in the absence of oxygen?

Which of the following is correct about the pulmonary artery?

I : It contains oxygen rich blood

II : It contains carbon dioxide rich blood

III : It carries blood pumped from the heart to lungs

IV : It carries blood from the lungs to the heart

Q. Oxygen and carbon dioxide are taken up by the red blood cells in the blood.
Red blood cells contain a pigment called Haemoglobin
what is the haemoglobin made up of?

Why does blood turn dark red as it circulates through the body?

Why does bright red colour blood turn dark once circulation begins?

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Why is blood that flows from the lungs to the heart bright red rather than dark red?

The correct option is B Oxygen makes it red.1.The blood that flows from the lungs to the heart is oxygenated blood.2.Inside lungs when deoxygenated blood (darker than oxygenated) reaches ,it gets oxygenated ,through exchange of gases which takes place through Alveoli present inside the lungs.

The correct option is
B

Oxygen makes it red.

1.The blood that flows from the lungs to the heart is oxygenated blood.
2.Inside lungs when deoxygenated blood (darker than oxygenated) reaches ,it gets oxygenated ,through exchange of gases which takes place through Alveoli present inside the lungs.