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Science · 2023 · 2 marks
CBSE 2023 · Region 1 · Set 1 · Q23
(a) Name the type of blood (oxygenated / deoxygenated) transported by each of the following mentioning the path (i.e. from one organ (which place) to…
(a)
Name the type of blood (oxygenated / deoxygenated) transported by each of the following mentioning the path (i.e. from one organ (which place) to another (which place)).
(i)
Vena cava
(ii)
Pulmonary artery
OR
(b)
With the help of a schematic flow chart, show the breakdown of glucose in a cell to provide energy -
(i)
in the presence of oxygen
(ii)
in lack of oxygen
Marking-scheme solution
(a)(i)
Vena cava - deoxygenated blood from body to heart.
(ii) Pulmonary artery - deoxygenated blood from heart to lungs. OR
(b) (i)
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CBSE Class 10 Science past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.