Question

1. define digestive enzyme:

____________________________________________________
____________________________________________________

1. if you come across a word that you have never seen before, but it has the suffix -ase (ex: kinase) it is

probably an _________________.

1. peptide bonds in proteins can be broken down by the enzyme peptidase. adrian orders a hamburger

and french fries for lunch. he adds cheese and mayonnaise to his hamburger, and then sits down to
eat lunch with his friends. which structure would most likely result from the action of peptidase in
adrian’s small intestine? ______________________

1. what are three things that impact enzyme activity?
2. _________________________
3. _________________________
4. _________________________

chart: pepsin and salivary amylase activity
at different ph values
(graph with ph on x - axis, rate of substrate breakdown on y - axis, key: dashed for pepsin, solid for salivary amylase)

1. at what ph does pepsin have greatest enzyme activity? _______________
2. at what ph does salivary amylase have greatest enzyme activity? _______________
3. an enzyme breaks down the polymer protein into what monomer? _________________________
4. what monomers make up the polymer polysaccharide? _________________________
5. what is the polymer when many molecules of fatty acids are joined?

______________________

1. what is the polymer of nucleotides? _________________________
2. what is the function of enzymes? ____________________________________________________

Explanation:

Question 9

A digestive enzyme is a type of protein that speeds up the chemical reactions involved in breaking down food into smaller, absorbable molecules in the digestive system. Examples include amylase (breaks down carbs), pepsin (breaks down proteins), and lipase (breaks down fats).

The suffix “-ase” is a common indicator of an enzyme. Enzymes are biological catalysts, and many enzyme names end with -ase (e.g., kinase, amylase, lipase). So a word with -ase is likely an enzyme.

Peptidase breaks peptide bonds in proteins. The hamburger has protein (from meat, cheese). Peptidase will break the protein’s peptide bonds, reducing the protein to smaller peptides or amino acids. So the result would be smaller peptide fragments or amino acids (since peptidase acts on peptide bonds in proteins).

Answer:

A digestive enzyme is a protein that catalyzes (speeds up) the breakdown of food molecules (like carbohydrates, proteins, fats) into smaller, absorbable substances during digestion.

Question 10