Bomb calorimeter, Biology

Assignment Help:

Bomb Calorimeter

Energy intake is the chemical energy content of ingested food over a given period. Energy loss is the chemical energy that remains in faeces and urine produced by the animal over the same period. The energy content of food and wastes is found out by burning them in a bomb calorimeter. The material to be tested is placed and burned with the aid of oxygen in a chamber surrounded by jacket of water. The heat produced is determined by the rise in temperature of the surrounding water. Table provides the caloric value of the common food stuffs estimated in bomb calorimeter and in the body.

 

623_Bomb Calorimeter.png

Figure:Bomb Calorimeter

These values are essentially average values. During oxidative degradation in animal body, carbohydrates and lipids are fully oxidised to carbon dioxide and water just as in a bomb calorimeter but proteins are not degraded because the major end-product of protein metabolism, is urea which still possess some energy. Accordingly, the value is lower in the body (4.1 kcal/g) as you can see from Table. Energy derived from one gram of fat is much more than that derived from 1 gram of protein or of carbohydrate.

Table:  Fuel Content of Food Materials

16_Bomb Calorimeter 1.png


Related Discussions:- Bomb calorimeter

Describe the neuropsychological assessment of infants, Describe the Neurops...

Describe the Neuropsychological Assessment of Infants Neuropsychological Assessment of Infants and Young Children followed by the developmental Concepts Unique to Infants and

How does the male gamete penetrate the egg cell, Q. How does the male gamet...

Q. How does the male gamete penetrate the egg cell? How does the female gamete protect itself from the entrance of more gametes after the entrance of the first sperm cell? The

Why the pancreas is considered a mixed gland, Q. What is a mixed gland? Why...

Q. What is a mixed gland? Why the pancreas is considered a mixed gland? Mixed gland is a gland that produces exocrine and endocrine secretions. The pancreas is an example of

Toxic agents present in which food, Toxic agents present in food which inte...

Toxic agents present in food which interfere with thyroxine synthesis lead to the development of: 1. toxic goitre 2. cretinism 3. simple goitre 4. thyrotoxicosis si

The best absorbed in an acidic environment, Why is a weekly acidic drug bes...

Why is a weekly acidic drug best absorbed in an acidic environment?

Tree, what is a seed?

what is a seed?

Economically important fermentation products-rice beer, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Define malnutrition - effects on milk and effects on mothers, Define Malnut...

Define Malnutrition - Effects on Milk and Effects on Mothers? Milk is the sole source of nourishment for many infants for upto 6 months or a year or even more. Therefore, the r

Diabetic with hypertension, Kidney Disease   The target BP in chronic k...

Kidney Disease   The target BP in chronic kidney disease is set at 130/80.  This will retard the progression of renal function. The drugs recommended are the ACEI/ARBs. These c

Reproduction on land, Describe the evolution of egg structures and embryolo...

Describe the evolution of egg structures and embryological development for animals that have become adapted to terrestrial existence.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd