Explain the steps of converting food into energy, Biology

Assignment Help:

Explain the steps of converting food into energy.

There are four steps to convert food into energy:

a) Ingestion, mastication and swallowing : Ingestion or taking in of food and mastication are done by mouth and teeth with the help of the tongue. The pharynx and oesophagus help in swallowing.

b) Digestion : Takes place in the stomach and upper part of the small intestine.

c) Absorption : Food is absorbed in small intestine. Water is absorbed in the large intestine.

d) Excretion : Large intestine helps in excretion of residue in the form of faeces or stool.

Additional organs help in the process of digestion : Salivary glands supply saliva. Liver supplies bile. Bile salts play important role in fat digestion. Pancreas secretes insulin from islets of langerhans. Insulin helps the tissues to use sugar for energy.

 


Related Discussions:- Explain the steps of converting food into energy

Determine the bioavailability of minerals, Bioavailability of Minerals ...

Bioavailability of Minerals It is well known that the concentration of a nutrient in a food is not a reliable indicator of its nutritional value. In other words, the entire qua

Explain kingdom animalia, Kingdom Animalia Multicellular, heterotrophic, ...

Kingdom Animalia Multicellular, heterotrophic, eukaryotes, tissues are specialised and most of them have organs, mostly highly responsive. Only gametes are haploid, fertilisation

Enumerate about the visual field examination, Visual Field Examination ...

Visual Field Examination Russel et. al include a formal visual field examination using a parameter as part of their assessment procedure. Tests in the expanded version include

Do platyhelminthes have an excretory system, Q. Cnidarians and Poriferans d...

Q. Cnidarians and Poriferans do not have excretory systems. Do platyhelminthes have an excretory system? Platyhelminthes have a primitive excretory system made of flame cells

How light reaction effects cell metabolism, How light reaction effects Cell...

How light reaction effects Cell Metabolism ? Light reactions :  The light reactions are carried out by two separate assemblies of several hundred chlorophyll molecules, acces

Human reproduction, Describe the events which lead to the formation of (a) ...

Describe the events which lead to the formation of (a) identical twins, (b) fraternal twins in detail

Is neuron b in the frog central nervous system, IS Neuron B in the frog cen...

IS Neuron B in the frog central nervous system Consider Neuron B in the frog central nervous system whose plasma membrane has a previously unknown channel that is selectly cond

Explain the integumentary system in human biology, Explain the Integumentar...

Explain the Integumentary System in human biology? The skin, its glands, and outgrowths form the Integumentary system. This system provides protection, sensory perception, tem

How many atp molecules are made after glycolysis, How many ATP molecules ar...

How many ATP molecules are made after glycolysis? Glycolysis is a process same to glucose degradation in fermentation. It forms (final balance) two molecules of ATP for each br

Traditional meat products, Tr aditional Meat Products The rich heritag...

Tr aditional Meat Products The rich heritage of India contributes to wide range of traditional foods and has a role to play in health foods. Indigenous meat products are uniqu

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