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Title: Structure and function of the digestive system
Description: Structure and function of the digestive system, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.
Description: Structure and function of the digestive system, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.
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IGCSE Curriculum:
2
...
28
understand how food is moved through the gut by peristalsis
2
...
They also produce enzymes(pancreas)
...
Muscle contraction pushes the food through the system
...
Making a Model Gut Practical:
Starch is broken down by amylase, which then turns starch into maltose
...
The starch is not small enough to go through the microscopic holes of the Visking
tubing
...
What effect does amylase have on starch solution?
Amylase breaks down the starch into sugar
...
What do your results from this experiment tell you about the size of molecule that
can pass through Visking tubing
e size of molecule must be small
...
What part of the apparatus was like:
• The food in your gut?
• Starch solution
• Your gut wall?
• Visking Tubing
• The blood around your gut?
• Water in boiling tube
...
This allows some nutrients to go through to the
blood, but not others
...
Title: Structure and function of the digestive system
Description: Structure and function of the digestive system, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.
Description: Structure and function of the digestive system, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.