Human body ETT Flashcards
Name the two nutrients that provide energy
Carbohydrates and lipids (fats)
Name the nutrient that’s needed for growth and repair
Protein
Name the two nutrients that are needed in small amounts to maintain health
Vitamins and minerals
What is fibre needed for?
To help food move through the gut
Suggest some foods that are a good source of carbohydrates
Examples include:
potatoes, rice, bread, pasta
Suggest some foods that are a good source of protein
Examples include:
Meat, fish and eggs
Suggest some foods that are a good source of vitamins and minerals
Examples include:
Fruit and Vegetables
Suggest some foods that are a good source of lipids (fat)
Examples include:
Milk, Cheese, Cream, Nuts
Describe the food test for starch
Test: Add iodine
Positive result: Turns black
Describe the food test for protein
Test: Add biuret solution
Positive Result: Turns light purple
Describe the food test for glucose (sugar)
Test: Add Benedict’s reagent and put in water bath
Positive result: Turns orange
Describe the food test for lipids (fats)
Test: Rub food on filter paper
Positive result: Paper goes translucent
What does obese mean?
Extremely overweight.
When you don’t have enough vitamins or minerals, what are you said to have?
A deficiency
What happens when you take in more energy in food than you use up in daily activities?
You gain weight
What are the folds in the small intestine called?
Villi
List the organs that food moves through in the digestive system (in order)
Mouth
Oesophagus (gullet)
Stomach
Small intestine
Large intestine
Rectum
Anus
In what part of the digestive system are nutrients absorbed into the bloodstream?
Small intestine
In what part of the digestive system is the excess water absorbed?
Large intestine
How are the villi adapted to aid digestion?
- They provide a large surface area
- They have a close network of capillaries to take away the nutrients
Name the enzyme that breaks down carbohydrates
Carbohydrase
Name the enzyme that breaks down protein
Protease
Name the enzyme that breaks down lipids (fats)
Lipase
What does carbohydrase break down carbohydrates into?
Sugar
What does protease break down protein into?
Amino acids
What does lipase break down lipids into?
Fatty acids and glycerol
Which type of enzyme starts to work in the mouth?
Carbohydrase
Which type of enzyme works in the stomach?
Protease
Which types of enzymes work in the small intestine?
All three:
- Carbohydrase
- Protease
- Lipase
What happens to enzymes at high temperatures?
They denature
Name the part of the digestive system labelled A
Mouth
Name the part of the digestive system labelled B
Oesophagus
Name the part of the digestive system labelled C
Stomach
Name the part of the digestive system labelled D
Small intestine