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Concept explainers
A.
To calculate: The number of ATP molecules generated from one glucose molecule.
Introduction:
During
A.
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Explanation of Solution
Given,
Hence, a maximum of 57 molecules are generated from one molecule of glucose.
B.
To calculate: The overall efficiency of ATP production from glucose as compared to the answer in part (A).
Introduction:
During cellular respiration, nutrients converted into biochemical energy in the form of ATP. This process leads to the breakdown of large molecules into smaller molecules. This process releases energy and leads to the formation of stronger bonds in the products. Glucose breaks down into simpler molecules and produces energy in the form of ATP.
B.
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Explanation of Solution
Refer to the Table 14-1, “products yields from glucose oxidation”, in the text book.
Given,
Respiration produces 30 moles of ATP from 1 mole of glucose.
Hence, an overall efficiency of ATP production would be about 53%.
C.
To calculate: The increase amount of energy that heats the body.
Introduction:
During cellular respiration, nutrients converted into biochemical energy in the form of ATP. This process leads to the breakdown of large molecules into smaller molecules. This process releases energy and leads to the formation of stronger bonds in the products. Glucose breaks down into simpler molecules and produces energy in the form of ATP.
C.
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Explanation of Solution
Given,
Hence, the temperature of the body increases by 4.3°C, if the heat is not dissipated into the environment.
D.
To explain: The effect on the body when body converts the energy in food substances with 20% efficiency.
Introduction:
During cellular respiration, nutrients converted into biochemical energy in the form of ATP. This process leads to the breakdown of large molecules into smaller molecules. This process releases energy and leads to the formation of stronger bonds in the products. Glucose breaks down into simpler molecules and produces energy in the form of ATP.
D.
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Explanation of Solution
If body converts the energy in food substances with 20% efficiency, then 80% of available energy would be released as heat.
The heat production would be higher than the normal. Hence the body would certainly overheat.
E.
To calculate: The amount of glucose from oxidation to produce energy.
Introduction:
During cellular respiration, nutrients converted into biochemical energy in the form of ATP. This process leads to the breakdown of large molecules into smaller molecules. This process releases energy and leads to the formation of stronger bonds in the products. Glucose breaks down into simpler molecules and produces energy in the form of ATP.
E.
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Explanation of Solution
Given,
A resting body hydrolyzes about 40 kg of ATP in every 24 hours.
Refer to the Fig. 2-24, “Adenosine triphosphate (ATP) is a crucially important energy carrier in cells”, in the text book. The molecular formula of ATP is C10H12O13N5P3.
Hence, 1000 kcal chemical energy could be produced by the oxidation of 480 g glucose.
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Chapter 3 Solutions
Essential Cell Biology
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