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

Define fluid and electrolytes requirements in elderly, Define Fluid and Ele...

Define Fluid and Electrolytes requirements in elderly? Care lo be taken that adequate fluid be given to the elderly. If patient is unable to take the required daily needs, then

Properties of transparency factors in corneal hydration, What are special p...

What are special properties of transparency factors in corneal hydration of cornea? The factors affecting the transparency include special properties of the corneal epitheliu

Requirements and recommended dietary allowances (rda), Define Requirements ...

Define Requirements and Recommended Dietary Allowances (RDA)? What do we mean by requirements and RDA? The requirement level is the amount of nutrient needed to be absorbed to

Basic principles involved ark, Q. Basic principles involved ark? The ba...

Q. Basic principles involved ark? The basic principles involved ark: The individual must be treated as such and for that careful initial history - daily living situation, a

Systematics, How do we define an living organism

How do we define an living organism

Osmoregulation, explain osmoregulation in crustacean ?

explain osmoregulation in crustacean ?

Conclusions from the monohybrid crosses, Conclusions drawn from the Monohyb...

Conclusions drawn from the Monohybrid Crosses From the results of his monohybrid crosses, following conclusions were obtained :- 1 .       Law of Unit or Paired Factors (Po

Marchantia , why vegetative reproduction use in marchantia

why vegetative reproduction use in marchantia

Bacterial artificial chromosome (bac), Bacterial artificial chromosome (BAC...

Bacterial artificial chromosome (BAC) is a chromosome-like structure, made by genetic engineering. BAC is a cloning vector able to carrying between 100 and 300 kilo bases of targe

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