What macromolecules are found in the McMush?
Background Information:
| Biological Macromolecule | Food Sources |
|---|---|
| Carbohydrates | |
| Proteins | |
| Nucleic Acids | None |
| Lipids |
Which biomolecule is detected by lugol’s reagent?
starch
Carbohydrates such as starch are detected by mixing a sample with 2–4 drops of iodine or Lugol’s solution. The solution will turn from a yellow-brown color to a dark purple if starch is present.
Which biomolecules did we test for in the lab?
This experiment tests for the presence of the following biomolecules: Complex Carbohydrates, Simple Carbohydrates, Proteins and Lipids. In each test four substances and distilled water are used.
What is the purpose of the McMush lab?
The purpose of this lab is to determine the presence of the major macromolecules in our food and to relate these organic compounds to life processes.
What is McMush?
McMush. Introduction: Carbohydrates, proteins, fats, vitamins, and other nutrients provide your body with energy necessary to carry on life activities. These compounds are present in the plants and animals you use as food.
What macromolecule does Benedict’s solution test for?
Benedict’s Test is used to test for simple carbohydrates. The Benedict’s test identifies reducing sugars (monosaccharide’s and some disaccharides), which have free ketone or aldehyde functional groups.
What are the tests for biomolecules?
Chemical Tests for Biomolecules
| Sugar type | Test performed |
|---|---|
| Glucose | Green precipitate at the bottom and light purple ring formed |
| Sucrose | Green precipitate at the bottom and purple ring formed |
| Starch | Iodine test |
| Lactose | Remains brown colour, no colour change |
What is the lugol’s test?
Lugol’s solution is an aqueous solution of iodine and potassium iodide. Lugol’s solution is used in cytology for detecting abnormal squamous cells of the vaginal epithelium and cervix epithelium by using the Schiller’s test (used during colposcopy).
What are indicators in biomolecules?
**INDICATORS are chemicals that react or change color in the presence of another compound…we use them to test for the presence (or absence!) of particular compounds. Indicator / test: Tests for presence of: Original Color/Characteristic.
What are important functions of carbohydrates?
Introduction. Alongside fat and protein, carbohydrates are one of the three macronutrients in our diet with their main function being to provide energy to the body. They occur in many different forms, like sugars and dietary fibre, and in many different foods, such as whole grains, fruit and vegetables.
What macromolecule is starch?
polysaccharide
A starch macromolecule is a polysaccharide composed of thousands of glucose units. Glucose molecules can be added to starch by a condensation reaction.