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

Lungs, what is the lungs structure in relation to the excretory system?

what is the lungs structure in relation to the excretory system?

Bone growth and development calcification of osteoid tissue, Define Bone gr...

Define Bone growth and development calcification of osteoid tissue? Vitamin D participates in metabolic processes associated with bone growth and development. It is involved i

Fowl cholera, F o wl cholera Fowl cholera, a highly contagious diseas...

F o wl cholera Fowl cholera, a highly contagious disease of poultry caused by Pasteurella multocida, was one of the first infectious diseases to be recognized by Louis Past

Explain animal fats, Animal Fats This group consists of depot fats from...

Animal Fats This group consists of depot fats from domestic land animals (e.g., lard and tallow), all containing large amounts of C16 and C18 fatty acids, medium amounts of uns

State the atp-sensitive potassium channel, Which of the following is true f...

Which of the following is true for the ATP-sensitive potassium channel? A. The channel is a spanning protein with a receptor site for ATP located on an extracellular region of

An a=t mispairing leads to an a=c substitution, An A=T mispairing leads to ...

An A=T mispairing leads to an A=C substitution. The other DNA helix will contain a(n) __ pair. a. A=C b. A=T c. G=C d. B=Q e. T=T Can you also explain it please so if I'm ask

Slromal swelling pressure for corneal hydration, How is the responsible slr...

How is the responsible slromal swelling pressure for corneal hydration? Slromal Swelling Pressure Stromal Swelling Pressure (SSP) is the pressure exerted by GAG (Glycosa

What is the etiological agent of amebiasis, Q. What is the etiological agen...

Q. What is the etiological agent of amebiasis? How it transmitted and what are the typical manifestations of the disease? The Amebiasis is caused by the protozoan Entamoeba his

Buffers in foods, Some foods are better able to resist changes in pH than...

Some foods are better able to resist changes in pH than others. These tend to resist changes in pH since these are buffered and the ability to resist changes in pH is known as bu

Exogenous pathway, In the typical Western diet approximately 80-140 G trigl...

In the typical Western diet approximately 80-140 G triglyceride and 0.5-1.5 G cholesterol are eaten daily. Following digestion, absorption and reesterification, triglyceride and c

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