Planning and carrying out a scientific investigation
Mr Miller
In this unit you will learn about:
•
The stages involved in planning a practical investigation;
• How to conduct a practical investigation;
•
How to record, process, evaluate and draw conclusions from the data obtained from the practical investigation;
• Presenting your practical investigation to a client.
Your investigation
• You will be investigating the effects of bile , a substance formed in the liver and stored in the gall bladder. Bile plays an important role in the digestion of fats.
• Your client is Mrs Lock a LSA at the Palmer catholic academy. She has been informed by her doctor that it may be necessary to remove her
Gall bladder. You will be tasked to find out what the impact of removing this organ will have on her lifestyle.
Background research
• To start your report you will need to research the role of the gall bladder and more specifically bile in digestion.
• You will need to research the liver ( where bile is made), bile itself, and its role in digestion.
• The next few slides will give a brief description of the role bile plays in the digestion of fats. You must research this further before your practical investigations can begin.
Enzymes
• You must also research the action of enzymes in general. Things to include are:
• The different types of enzymes and what types of food groups they act on.
• Information including graphs of the following :
• Optimum pH for enzyme action.
• Optimum temperature for enzyme action.
• The effect of enzyme concentration.
• The effect of substrate concentration.
The liver, fats and bile.
• Bile is made in the liver by cells called hepatocytes. Some of the bile is goes into the bile duct and then on to the duodenum
(part of the intestine where some digestion takes place).
• Most is carried into the gall bladder where it is stored and concentrated prior to being released into the bile duct when needed.
What part