• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Digestion coursework

Extracts from this document...

Introduction

Biology Test on Nutrients and Digestion Nutrients Carbohydrates * Contain: carbon, oxygen, hydrogen * Found in pasta, potatoes, bread, rice and sugars * Needed for energy-movement, digestion and warmth * Excess stored as glycogen in liver and muscles * Made from: Monosaccharide- single sugar unit e.g. glucose, fructose, galactose - Soluble - Small (not digested, pass directly in blood stream) ...read more.

Middle

- Glycogen- animal storage Too much carb causes obesity Too much sugar can rot teeth Fats * Contain: carbon, hydrogen, oxygen * Found in: butter, oil, margarine, peanuts, fatty meat * Needed for a) energy b) Insulation c) Storage of vit A and D * Excess stored under skin and around body organs * Made from fatty acids and glycerol Too much cholesterol blocks arteries Too much fat causes obesity Proteins * Contain: carbon, hydrogen, oxygen, ...read more.

Conclusion

iron, calcium...needed in small quantities * Iron found in meat, liver, kidney, spinach, brocolli Needed to make haemoglobin Lack causes anaemia and tiredness * Calcium found in milk, dairy products Needed to strengthen teeth, bones Lack causes rickets Vitamins e.g. vitamin C, D...needed in small amounts * Vitamin C water soluble & not stored in body Found in citrus fruits, blackcurrants, tomatoes Needed to heal wounds Lack causes scurvy, reduced resistance to disease * Vitamin D ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Exchange, Transport & Reproduction section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Exchange, Transport & Reproduction essays

  1. Marked by a teacher

    Sand Dune Succession Coursework

    5 star(s)

    I also predict that the pH of the soil will decrease in value as you travel way from the see. Factors to take into account: Factor to take account of How these will affect succession Water content Insufficient water content will lead to a decrease in plant growth.

  2. Marked by a teacher

    Biology coursework planning - the effect of lead chloride on the growth of cress ...

    5 star(s)

    they have adequate space to grow and will not compete intraspecifically for room. The lead chloride concentrations used in the preliminary experiment will also be used in the final experiment because measurable results are obtained when using these concentrations and there are significant differences in the growth of the cress seeds when immersed in the different concentrations.

  1. AS biology coursework on enzymes

    If I see the cross, then I can stop the watch and record my readings in a table. After finally working out my average readings, I will be able to work out the rate of reaction by using the following formula: Rate of reaction = 1/t (t equals time taken in seconds)

  2. Potato coursework

    The cell membrane will shrink and pull away from the cell wall. This process is called plasmolysis and the cell is said to be plamolysed. The equation for water potential is Water potential of a cell = solute potential of ions inside cell + pressure potential of cell wall ?

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work