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Biology
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22 Feb 2019

Consider the following :

1.Oxidised carbohydrates are utilized for different life processes in living cells of the body.

2.Maximum amount of carbohydrate is required for proper utilization of fat in the body.

Which one of the above statements is true?

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Related questions

Please help me check this answers, the ones in bold are the ones I choose as my answers.

A food containing 20g of carbohydrates would have a kilocaoric value of
40
80
120
200
Excess carbohydrates beyond the body's need is converted in the body to.
Fat
Glycogen
Glucose
Protein
Which of the following terms would be identified as the most complex carbohydrate?
Monosaccharides
Disaccharides
Trisaccharides
Polysaccharide
Which example of carbohydrate is table sugar?
Sucrose
Fructose
Glucose
Galactose
Which of the following carbohydrate foods provide the quickest energy?
Slice of bread
Chocolate candy bar
Corn on the cob
Glass of apple juice
An energy source stored in the liver is
Glycerol
Glycogen
Glycine
Glycerude
Cellulose which is classified as a polysaccharide, has no caloric value. It is important in the body because it:
Starts enzyme activation
Aids in mineral absorption
Stimulates intestinal movement
Protects vital organs
The refined fuel glucose is delivered to the cells by the blood for production of energy. The hormone for controlling use of glucose by the cells is:
Thyroxin
Growth hormone
Adrenal steroid
Insulin





In this week’s forum article, Nutrient Utilization in Humans: Metabolism Pathways,(http://www.nature.com/scitable/topicpage/nutrient-utilization-in-humans-metabolism-pathways-14234029) the types of molecules and the mechanisms by which the potential chemical energy in those molecules is transformed into the type of energy capable of powering cellular work is discussed. After reading the article, answer the questions listed below. ( Read the article and answer the following questions)

1. What was Antoine Lavoisier’s major contribution to our understanding of energy metabolism in living organisms?

2. Max Rubner showed that carbohydrates and proteins produce approximately 4 Kcal/g of energy when oxidized, whereas lipids generate up to 9 Kcal/g. How can this difference be explained?

3. This article points out that a major misconception, especially for many undergraduates, is that human cells only use glucose as a fuel source. In fact, all three major absorbed end products of the digestion of carbohydrates, lipids and proteins can be utilized by most cells for the generation of ATP. What serves as the major entry point (mechanism) for these different classes of molecules that makes it possible for them to serve as fuel for ATP production? Why does this mechanism not work in the absence of oxygen? Hint: consider glycolysis and fermentation.

4. Although many of the approximately 200 cell types in the human body can utilize all three major classes of food molecules for energy, not all can. Why? Provide an example.

Use the following article to answer these questions:

http://www.nature.com/scitable/topicpage/nutrient-utilization-in-humans-metabolism-pathways-14234029

1)This article points out that a major misconception, especially for many undergraduates, is that human cells only use glucose as a fuel source. In fact, all three major absorbed end products of the digestion of carbohydrates, lipids and proteins can be utilized by most cells for the generation of ATP. What serves as the major entry point (mechanism) for these different classes of molecules that makes it possible for them to serve as fuel for ATP production? Why does this mechanism not work in the absence of oxygen? Hint: consider glycolysis and fermentation.

2)Although many of the approximately 200 cell types in the human body can utilize all three major classes of food molecules for energy, not all can. Why? Provide an example.

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