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Transcript
Biology Worksheet - Carbohydrates
1. What types of atoms make up carbohydrates?
2. How does the number of H atoms in a carbohydrate compare to the number of oxygen atoms?
3. What is the simplest type of carbohydrate?
4. What two functional groups are found in monosaccharides?
5. Name three common monosaccharides and give the molecular formula for each.
6. What suffix is commonly found on the end of sugar names?
7. How are monosaccharides used in a cell?
8. What is a disaccharide? Name two common disaccharides.
9. Fill in the chart below for the three most commonly occurring polysaccharides:
Polysaccharide
Monomer
Type of organism in which
it is found
Function
Starch
Glycogen
Glucose
Cellulose
10. What would you expect to get if you hydrolyze (do hydrolysis on) the following:
A) a starch molecule ____________________
C) a glycogen molecule__________________
B) a sucrose molecule____________________
D) a cellulose molecule __________________
11. Which of the molecules above cannot be hydrolyzed by the digestive system of most animals? Why?
Critical Thinking: Cellulose is very hard to digest, yet cows are able to eat and digest these polysaccharides.
Explain why.
Biology Worksheet - Proteins
1. Describe 5 functions proteins may perform.
2. What are the monomers of proteins?
3. How many different kinds are there?
4. What types of atoms are found in proteins?
5. This is the general structure for an amino acid. Label its functional groups. Label the amino group, the
carboxyl group and the variable group.
H
O
H
N
C
H
R
___________
_
C
O
H
_____________
6. Which part of an amino acid determines its specific properties?
7. When 2 amino acids are joined together by dehydration synthesis a _________________bond is formed.
Draw an example from the book. (p. 57)
8. What is a polypeptide?
9. What kind of molecules will result when a protein is completely hydrolyzed?
10. What makes different kinds of proteins unique?
11. Explain how a protein’s shape is determined.
12. What is denaturation?