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

Mammalian Nutrition - Explain the role of longitudinal and circular muscle in the stomach and small intestines.(

Extracts from this document...

Introduction

Biology - Mammalian Nutrition Explain the role of longitudinal and circular muscle in the stomach and small intestines.(6) In the stomach the muscle tissue helps to churn the foods and acids up. This helps move the food get digested quicker as it moves it around, exposing more of the food to acids and enzymes. Sphincter muscles are required both at the bottom of the stomach to stop food proceeding onto the next part of the journey, and also at the top so that acid (or, less importantly, food) ...read more.

Middle

The circular and longitudinal muscles contact behind a package of food which then squeezes that bit into the next little bit of the intestine. Describe the role of the nervous system and hormones in controlling the secretion of saliva, gastric juice and pancreatic juice.(12) Nervous System Hormone (endocrine system) Saliva Stimulus both to the smell and taste receptors stimulates a reflex controlled by the medulla oblongata which directly affects the increased production of saliva by the goblet cells. ...read more.

Conclusion

This allows there to be a lot of gastric juice ready in the stomach when the food gets there so it can be broken down fast. Pancreatic Juice Pancreatic juice is produced, of course, in the pancreas by exocrine cells. These cells are stimulated to produce by the hormone secretin. The secretin is produced by the lining of the duodenum when the pH of the lining changes. The secretin, once produced is then taken away in the blood where it eventually meets its target audience, the pancreas. Make a diagram to summarise what happens to cellulose in a cow's rumen and reticulum.(6) ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Food Technology 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 GCSE Food Technology essays

  1. Food and Nutrition Coursework : Diary for a Sportsman

    foods but it will also show how difficult it is to keep to a certain meal rageme. Sport: Skeleton Height: 5' 5" Date of Birth: July 25, 1970 Hometown: Park City, Utah School: University of Utah Notable: Former Marketing Director at Jack Johnson Company Find Nutritional Balance in Training: Tip

  2. Explain the need for nutrition by living organisms.

    VITAMINS Vitamins are chemical compounds found in food. Animals get vitamins, needed in small quantities from fresh vegetables. A disease caused by lack of vitamins is called a deficiency disease. Vitamins are named by letters A, B, C, D etc. Vitamins are important because they help increase the body's resistance to infections.

  1. Chocolate: Behind its bad rap

    by the liver and is important as a constituent of cell membranes and a precursor to steroid hormones. Its level in the bloodstream can influence the pathogenesis of certain conditions, such as the development of atherosclerotic plaque and coronary artery disease. Conching- a flavor developing process that kneads the chocolate.

  2. Food + Nutrition - Individual task.

    LE1 5WW I have only received information from one of the addresses that I sent letters to so far. The Nutrition and Dietetic Service at the Leicester Royal Infirmary sent me 7 pages of detailed information. This information was very useful for my study as it focussed on my particular area of adolescents.

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