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What is the role of red blood cells in our body?

Red blood cells are vital for us to stay alive as they carry out an extremely important role in our body - oxygen transport. Red blood cells are the carrier of oxygen around our body in the blood stream, and...
CC
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If a person has a very poor diet they may have a very low concentration of proteins in the blood. This may cause oedema. Explain Why

Proteins are important to maintain the osmotic pressure within the blood vessels. Hence a person who has a poor diet that lacks protein will end up with swelling in their bodies this is called as oedema. Thi...
BZ
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People get vitamins mainly from the foods they eat or from vitamin tablets. Give a different way in which people get some vitamin K.

Vitamin K is a fat-soluble vitamin which helps prevent bleeding and it is synthesized by the bacterias which reside in the human intestines. Hence it is important to give this particular vitamin to a prematu...
BZ
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What is a Vitamin?

Vitamins are dietary components which are required in small amounts to maintain our health. To help the concept stick let's try to understand first where the name "Vitamin" comes from. It is derive...
BZ
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What are the major parts of a neuron? What are the three types of nerve cells?

1) The nerve cell , also referred to as a neuron , has several parts that are important for its function in the nervous system. These parts are: Soma - or a nerve cell body, contains nucleus and other organe...
ZB
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