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

Change in structure of a protein, Q. Is it expected that a change in the pr...

Q. Is it expected that a change in the primary, in the secondary or in the tertiary structure of a protein will produce furthermore functional consequences? Any change of the p

Show the symptoms and treatments of hepatitis b, Q. What are the modes of t...

Q. What are the modes of transmission, main signs and symptoms and treatments of hepatitis B? The Hepatitis B is a disease caused by a DNA virus. The transmission is by blood (

Explain how a human eye is working for the body, Explain how a human eye is...

Explain how a human eye is working for the body. Every tissue in the body requires basic components which are either derived from the body itself or we acquire them from extern

What is stage 2 implant surgery, Stage 2 implant surgery After evaluati...

Stage 2 implant surgery After evaluating the status of the implant, stage two procedure is carried out to bring forth a communication of the implant to the oral cavity by surgi

Explain the cost benefit analysis, Explain the Cost Benefit Analysis? C...

Explain the Cost Benefit Analysis? Cost-benefit analysis: Cost benefit analysis is a useful tool to establish the priority of a particular health service action. In this, both

Can you explain pus, Q. What is pus? Pus is a residual of the inflammat...

Q. What is pus? Pus is a residual of the inflammatory reaction and it contains a mixture of fragments of dead infectious agents (generally bacteria), leukocytes and tissues.

What is the incubation period of an infection, Q. What is the incubation pe...

Q. What is the incubation period of an infection? The Incubation period is the time interval between the infection by an agent that causes disease and the first signs or sympto

Nutrion, what are the different modes of nutrition

what are the different modes of nutrition

Describe how micrornas are able to influence gene expression, 1. Transcript...

1. Transcriptional analyses of eukaryotic cells reveal widespread production of RNA. Using specific examples describe how: a) microRNAs are able to influence gene expression.

What is ancient gondwanaland, What is Ancient Gondwanaland? Did you kno...

What is Ancient Gondwanaland? Did you know that the land surface of the earth was once comprised of two super continents called Gondwana and Laurasia? Click on the Multimedia b

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