Graded
The purpose of the unit is to develop students’ understanding of the role of the digestive system in digestion and absorption of the main macro and micro molecules. The unit builds from cells through to tissues and organs and explores how the main micro and macromolecules used in the human body.
Know the main micro and macromolecules used in the human body.
Structure and function of the following macronutrients: - proteins, carbohydrates (mono,
di and polysaccharides) and lipids, and the functions of micronutrients; minerals,
vitamins plus water and dietary fibre. Practical work such as food tests and molymodal
activities.
Describe the structure of the main micro and macromolecules used in the human body.
Explain the function of the main micro and macromolecules used in the human body.
Understand the process of digestion.
Main structures in the digestive system: mouth, teeth, salivary glands, oesophagus,
stomach, small intestine, pancreas, liver, gallbladder, large intestine, rectum, anus.
More detailed structure can be included where it relates to detail the digestion and
absorption of the macro and micro nutrients. It is important for students to demonstrate
an understanding of these digestive processes related to the structure of the molecules.
Outline the main structures of the digestive system.
Explain how the digestive system digests and absorbs those molecules explained in Learning Outcome 1.
Understand the process of absorption.
Absorption should include concepts related to osmosis, diffusion, active and facilitated
transport. Practical work investigating transport across membranes and /or enzyme
practicals.
Outline how molecules can move across membranes.
Explain how the digestive system absorbs those molecules explained in Learning Outcome 1.