- Join over 1.2 million students every month
- Accelerate your learning by 29%
- Unlimited access from just £6.99 per month
Blood structure and function in the body.
Are you in the right place?
Jump to Biology and see how teachers think you should prepare in:
Teacher essay summary
Marked by teacher kerry jackson 19/02/2012
The first 200 words of this essay...
Blood can be defined as: the circulating fluid (plasma) and suspended formed elements, such as red blood cells, white blood cells and platelets in the vascular system of humans and other vertebrates. This essay will mention about structure of the blood and the functions of the blood.
Structure of blood has four major parts these are: plasma, red blood cells, white blood cells, and platelets. Plasma is mainly made up from water; nearly %90-%92 is water. This is a straw coloured fluid. Plasma contains dissolved substances including electrolytes for example: sodium, chlorine and potassium. Albumin, globulin and fibrinogen are the protein of blood plasma. Hormones are also in the blood plasma. Red blood cells also named as erythrocytes. Red blood cells sometimes may be immature and they do have nucleus but in general, the mature ones do not have any nucleus. This gives them ability to carry more oxygen. They only exist for 120 days in body and there are approximately 4.5 - 5.8 million erythrocytes per micro-litre of healthy blood. This quantity depends on gender and age. White blood cells also named as leucocytes. There are different types of leucocytes. These can be defined
Found what you're looking for?
- Start learning 29% faster today
- Over 150,000 essays available
- Just £6.99 a month
Not the one? We have 100's more
Exchange, Transport & Reproduction (view all)
- The Effect Of Temperature On The Permeability Of The Cell Me...
- Describe the molecular structure of starch (amylase), glycog...
- Osmosis in potatoes experiment.
- An investigation on the effect of temperature on beetroot me...
- Biology Coursework - Osmosis - To Investigate concentration ...
- Describe the Structures of the Human Respiratory System
- Transpiration in Leaves Experiment
- The Process of Osmosis and its Importance to Living Organism...
- Hypothesis: To investigate the effect of different concentra...
- Excretion and the functioning of the kidneys
""Waseem Hussain. Biology, Maths, Chemistry, ICT A Level Student.
""John Plowright. Teacher. Repton School. Derbyshire.
MbT essay summary