Unit 5- Enzymes Flashcards
Why are enzymes so important in organisms?
Enzymes are very important in organisms because they are biological catalyst, and reactions that take place in the body rely on enzymes.
What happens when the enzyme joins it’s specific substrate molecule?
The reaction happens faster.
How does temperature affect enzyme activity?
As higher the temperature, more kinetic energy the enzymes receive until it reaches 60° and the enzyme denatures. This means that the substrate no longer fits the active site.
How does ph affect enzyme activity?
If an enzyme is put into the wrong ph conditions it doesn’t work as the active site changes shape and the enzyme doesn’t fit with the substrate.
Give two examples of enzymes in our body and their function.
The enzyme amylase stimulates the digestion of dietary starch. For example, enzymes called pepsin and trypsin digest dietary proteins.
What is a substrate?
A substrate is the molecule that is complementary in shape and joins to the enzyme.
Give an enzyme for starch (the substrate) and the product.
The enzyme is amylase (a carbohydrate) and the product is maltose (Disacccharide)
Give an enzyme for maltose (the substrate) and the product.
The enzyme is maltase (a carbohydrate) and the product is glucose (a monosaccharide).
Give an enzyme for protein (the substrate) and the product.
The enzyme is pepsin (a protease) and the product is peptide.
Give an enzyme for peptide (the substrate) and the product.
The enzyme is trypsin (a protease) and the products are amino acids.
Give an enzyme for lipid (the substrate) and the product.
The enzyme is lipase and the products are fatty acids + glycerol.
Give an enzyme for hydrogen peroxide (the substrate) and the product.
The enzyme is catalase and the product is water + oxygen.
In what part of the body can starch be found?
In the mouth.
In what part of the body can maltose be found?
In the small intestine.
In what part of the body can peptide be found?
In the small intestine.
