Energy storage, Biology

Assignment Help:

Energy Storage

As we said above, food intake and energy expenditure for animals is approximately equal. If energy expenditure exceeds food intake, then the excess energy is taken up by utilisation of body fat. However, if food intake is excess, then the surplus is stored as fat irrespective of the kind of food eaten. Excess carbohydrates are changed to fats and accordingly RQ exceeds 1. This is because fats contain relatively less oxygen and the excess oxygen of carbohydrates is used in the metabolism. This reduces the oxygen uptake and the respiratory carbon dioxide, oxygen ratio is increased. For this reason fat is ideal storage material for energy. It is much lighter and yields twice as much energy as carbohydrates.

Migratory birds that may have to fly more than 1000 km non-stop, carry fat as 40% to 50% of their body weight. Nonetheless, some carbohydrates are important in energy storage. Glycogen a starch-like carbohydrate polymer is stored as granules in the skeletal muscles and liver of vertebrates. During heavy muscular exercise when blood does not deliver sufficient oxygen to meet demands, glycogen provides the energy. It is broken down directly into glucose-6-phosphate, providing fuel for carbohydrate metabolism more directly than does fat, On the other hand, many animals that do not move about, also store glycogen as excess energy source. For example, clams, oysters and many intestinal parasites like Ascaris use glycogen as the storage material. These animals have to face anaerobic conditions and in such situations glycogen breaks down to acetic acid to yield energy.


Related Discussions:- Energy storage

Sunshine recorder, Sunshine recorder Sunshine recorder (Figure shown be...

Sunshine recorder Sunshine recorder (Figure shown below) measures the duration of sunshine. The recorder consists essentially of a glass sphere of about 10 cm in diameter mount

Excretion in roundworm, EXCRETIO N IN ROUNDWORM - In ascaris 4 coelomo...

EXCRETIO N IN ROUNDWORM - In ascaris 4 coelomoducts present, attached to each other by canaliculli in front of controling cell i.e. Rennete cell. Excretion materials are gi

Different blood groups in man, Different blood groups in man 1.Blood Gr...

Different blood groups in man 1.Blood Group "A": Persons having this blood group will have antigen "A' on their red blood cells and antibody "B" in their plasma. 2. Blood Gr

Define about the paper electrophoresis, Define about the Paper electrophore...

Define about the Paper electrophoresis? In paper electrophoresis the sample is applied to a point on a strip of filter paper or cellulose acetate moistened with buffer solution

How is light from the sun transformed into chemical energy, How is light fr...

How is light from the sun transformed into chemical energy to be used by the living beings on earth? Light from the sun is transmitted into chemical energy contained in organic

Legal level -pollution control, Legal level -Pollution control Polluti...

Legal level -Pollution control Pollution must be controlled by effective legislation also. Like USA, Japan, Germany and many other countries a comprehensive legislation for pr

In how many parts hydrocolloids be classified, In how many parts Classifica...

In how many parts Classification of Hydrocolloids Hydrocolloids, based on their solubility, thickening and gelling properties in water, are categorized into two main classes.

Cholesterol question, If an infant had a cholesterol level of 800 you may s...

If an infant had a cholesterol level of 800 you may suspect (blank)? How could this happen?d

Principles of darwinism, PRINCIPLES OF DARWINISM - 1 .       OVERPROD...

PRINCIPLES OF DARWINISM - 1 .       OVERPRODUCTION (PRODIGALITY) - All organisms have enormous fertility and they multiply in geometric ratio. Examples of over product

Respiratory gases -respiration, Respiratory Gases -Respiration Physio...

Respiratory Gases -Respiration Physiologically the most important gases are oxygen, carbon dioxide and nitrogen. Molecular oxygen comprises 21% of the atmosphere; carbon diox

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