Bio lab 6: Carbs, Proteins, and Lipids
Define emulsification
A mixture of 2 normally non-mixable substance, such as water and oil.
Water is what kind of control?
A negative control
What are indicators?
A substance that changes color in the presence of a particular type of molecule
What are controls?
A test you run to know what your results mean
Examples of proteins are
Amino acids, enzymes, hormones, hemoglobin
What is used to test for glucose?
Benedict's reagent
What mixes with the food you eat to make it digestible?
Bile salts
What is used to test for protein?
Biuret reagent
Our bodies do not create starch, but we often eat plant food which contain starch which we digest into ________________.
Maltose
Examples of carbohydrates include
Maltose, glucose, sucrose
Examples of lipids are
Fats/oil, steroids, phospholipids
DNA is a Nucleic acid that is found in every cell. DNA carries the ___________________ information.
Genetic
What is a negative control?
Group without the factor being tested for Sets the baseline
Our muscles create lots of proteins. This protein enables the muscles to ________________.
Grow
examples of nucleic acids are
DNA and RNA
What process is used to test for lipids?
Emulsification
Bile salts enable fats to dissolve in water, making them a what?
Emulsifier
Glucose is carried by our blood to all the cells in our body. Our cells use the glucose for ______________.
Energy
Lipids are found in fat cells in our bodies. The fat cells store lipid molecules to be used for ___________________________if a person cannot eat enough food.
Essential function of the human body.
What tests for starch?
Iodine
How does Benedict's reagent test for glucose?
It has a copper ion that reacts with certain functional groups to indicate if and how much glucose is present.
Iodine changes color due to starch. What causes the color change?
Occurs from iodine being able to hide in the helical structure of starch.
What is a positive control?
The factor being tested for Will show you what a positive result looks like
Biuret reagent will do what in the presence of protein?
Turns from blue to purple