Assertion : Both oxygen and carbon dioxide have to be transported by the blood.Reason : The heart pumps blood to the lungs for oxygenation and to the rest of the body to deliver oxygen.Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.Assertion is true, but Reason is false.Assertion is false, but Reason is true.

Assertion : Both oxygen and carbon dioxide have to be transported by the blood.Reason : The heart pumps blood to the lungs for oxygenation and to the rest of the body to deliver oxygen.Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.Assertion is true, but Reason is false.Assertion is false, but Reason is true.       What happens to carbon dioxide in the lungs?It is absorbed into the bloodstreamIt is exchanged for oxygen in the alveoliIt is converted into bicarbonate ionsIt is stored in the lung tissue

What percentage of blood is composed of plasma?45%55%65%75%       Assertion: Plasma transports carbon dioxide dissolved in blood.Reason: Carbon dioxide is a waste product transported from tissues to the lungs for exhalation.Options:Both assertion and reason are correct, and the reason correctly explains the assertion.Both assertion and reason are correct, but the reason does not correctly explain the assertion.Assertion is correct, but the reason is incorrect.Assertion is incorrect.       Why does the heart have different chambers?To regulate blood pressureTo prevent oxygen-rich blood from mixing with carbon dioxide-rich bloodTo filter waste products from the bloodTo produce red blood cells       Label the parts numbered 1 and 2 in the diagram,1) Aorta 2) Vena Cava1) Vena Cava 2) Pulmonary Veins1) Pulmonary arteries, 2) Pulmonary veins1) Aorta, 2) Lung capillaries       When the muscular left ventricle contracts, what happens to the blood?It is pumped out to the bodyIt is transferred to the right atriumIt is collected in the left atriumIt is oxygenated in the lungs       One-cell thick walled, smallest blood vessels are called?ArteriesVeinsCapillariesVenules       Where does the breakdown of glucose into pyruvate take place?MitochondriaNucleusCytoplasmEndoplasmic reticulum       What type of reactions in the cell are driven by the energy released from ATP breakdown?Exothermic reactionsEndothermic reactionsSpontaneous reactionsNeutral reactions       What is the primary molecule synthesized using the energy released during cellular respiration?GlucoseOxygenATPBoth A and C       How do plants primarily exchange gases with their environment?Through their rootsThrough their flowersThrough stomataThrough their seeds

Assertion: Carbon monoxide when inhaled for longer duration causes death.Reasoning: Carbon monoxide combines with haemoglobin.Both Assertion (A) and reasoning (R) are correct and R is the correct explanation of A.Both Assertion (A) and reasoning (R) are correct and but R is not the correct explanation of A.Assertion (A) is true but Reasoning (R) is not correct.Assertion (A) is not true but Reasoning (R) is correct.

Assertion: Fatty acid would be broken down to acetyl CoA before entering the respiratory pathway when it is used as substrate.Reason: When the organism need to synthesize fatty acid, acetyl CoA would be withdrawn from the respiratory pathway for it.Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.Assertion is True but the Reason is False.Both Assertion & Reason are False.

The following statements summarise the passage of blood through the heart. Determine whether each one is true or false.StatementTrue or false? (T/F)1. Blood arriving at the right atrium is de-oxygenated.2. From the right atrium, blood is pumped to the rest of the body.3. The left side of the heart only pumps oxygenated blood.4. Blood arrives from the lungs at the left atrium.5. The left ventricle pumps blood to the rest of the body through a large vein.