Guide questions:
1. Where does the final digestion of food take place? _______________________________
2. When it is converted into energy and nutrients, how does it reach the different parts of the body?___________________________
3. How does oxygen get into our body? ______ _____________________________________
4. How does oxygen reach the different parts of our body? ___________________________ Which blood component particularly carries it? _____________________________________
5. How do we release carbon dioxide? ______ _____________________________________
1. Where does the final digestion of food take place? _______________________________
2. When it is converted into energy and nutrients, how does it reach the different parts of the body?___________________________
3. How does oxygen get into our body? ______ _____________________________________
4. How does oxygen reach the different parts of our body? ___________________________ Which blood component particularly carries it? _____________________________________
5. How do we release carbon dioxide? ______ _____________________________________
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Answer:
1.Where does the final digestion of food take place?
❃It begins in the mouth and ends in the small intestine. The final products of digestion are absorbed from the digestive tract, primarily in the small intestine.
2.When it is converted into energy and nutrients, how does it reach the different parts of the body?
❃Points to Remember.4 As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.
3. How does oxygen get into our body?
❃Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
4.How does oxygen reach the different parts of our body?
❃Oxygen enters the lungs, then passes through the alveoli and into the blood. The oxygen is carried around the body in blood vessels. Carbon dioxide moves into the blood capillaries and is brought to the lungs to be released into the air during exhalation.
Which blood component particularly carries it?
❃Whole Blood. Whole blood contains red cells, white cells, and platelets (~45% of volume) suspended in blood plasma (~55% of volume). ...
❃Red Cells. Red blood cells (RBCs), or erythrocytes, give blood its distinctive color. ...
❃Platelets. ...
❃Plasma. ...
❃Cryo. ...
5.How do we release carbon dioxide?
❃Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.
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