Flashcards
Digestive System Flash Cards
Cards in this deck (18)
- 16 Basic Activities of the Digestive SystemIngestion
Mechanical Digestion
Chemical Digestion
Movement Along The Alimentary Canal
Absorption Into Bloodstream
Elimination - 23 Types of NutrientsLipids
Proteins
Carbohydrates - 3What do lipids break down into?Glycerol and Fatty Acids
- 4What do carbohydrates break down into?< Starch, Simple Sugars >
> Monosaccharides and Disaccharides < - 5What do proteins break down into?Amino Acids, Polypeptides, Dipeptides and Peptides
- 6What is the purpose of lipids?Lipids are converted into fat as stored energy
- 7What is the purpose of carbohydrates?Carbohydrates serve as a quick source of energy for the body
- 8What is the purpose of proteins?Building cells and enzymes
Can also be converted into carbohydrates and fat. - 9What is the purpose of enzymes?Enzymes are catalysts - they speed up the breaking down of nutrients, substrates, and lower the activation energy required to start this process.
- 10What is the part of an enzyme that bonds to a substrate called?An active site
- 11What are some factors that impact enzyme activity?Temperature
pH
Concentration - 12How does temperature impact enzyme activity?The higher the temperature of the enzymes' environment, the more efficiently they function.
When the environment's temperature rises above 40℃, the enzymes begin to denature. - 13How does pH impact enzyme activity?Different enzymes function better in different acidities.
Mouth (saliva) - 7
Stomach - 2
Liver - 7-9 - 14How does the concentration of enzymes impact enzyme activity?The more enzymes there are, the faster the process of breaking down nutrients is
- 15What doesn't provide energy but the body needs to function?Minerals and vitamins (and water)
- 16What are the 6 main parts of the Alimentary CanalMouth
Oesophagus
Stomach
Small Intestine
Large Intestine
Anus - 17What are examples of Mechanical DigestionTeeth - crushing and grinding the food
Muscle Contractions - the stomach crushes the food - 18What are examples of Chemical Digestion?Saliva (amylase) - makes the food pieces into bolus
Stomach Acids
Enzymes - speeds up the breakdown of nutrients
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- Covering the topics of: The 6 Basic Activities of Digestion Enzymes Nutrients Vitamins and Minerals Alimentary Canal
- Created by
- Tahlia Lam
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