Food tests Flashcards
Explain what role vitamins and minerals play in the body 🌳🥛🧂
Maintain health ❤️
Which food groups give energy? ⚡️
Carbohydrates and fats
Which food group:
- prevents constipation
- growth and repair
Fibre
Protein
What foods can u find minerals in?
Salt and milk
Which enzyme are carbohydrates broken down by?
Amylase
What is the substrate for amylase
Glucose and starch
What are the products of Amylase and starch/glucose?
Sugar
What colour does iodine turn to when starch is present?
What colour does Benedict’s test turn when sugar is present?
Orange -> blue/black
Blue -> green, orange, brick red
Which organs produce amylase and where does it act?
Salivary glands
Small intestine
Pancreas
Small intestine
Salivary glands
What PH is
Amylase
Protease
Lipase
7
2
10
What enzyme breaks down proteins?
Protease
What products comes from the protease enzyme and proteins
Amino acids
What colour does biurets solution turn when protein is present?
Blue -> purple
Where is protease produced and where does it act?
Stomach
Small intestine
Pancreas
Stomach
Small intestine
What is the enzyme for lipids?
Lipase
What are the products of lipase and lipids?
Fatty acids
Glucose
What colour does ethanol turn when lipids are present
Clear -> cloudy
Where is lipase produced and where does it act?
Small intestine
Pancreas
Small intestine
Enzymes are catalysts
What does this mean
Speed up chemical reactions without being used up in the process
They help break down _____/__________ molecules into _____/________ ones
Substrate has a _____________ shape so it can fit in the enzymes active site. Different enzymes are needed to break down different __________
Large insoluable
Small insoluable
Complementary
Substrates
What factors affect enzymes?
What is it called when an an enzymes active site is changed so the substrate can no longer fit?
Temp + ph
Denatured
Describe why bile is important for chemical reactions within the small intestine
💜⚪️🫓
- makes conditions alkaline
- Neutralises stomach acids
- emulsifies fats
