Organic Molecules Review Worksheet With Answers - Chapter 2 (2.3 & 2.5) Page 3
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5Nucleic Acids
14. Fill in the table for nucleic acids:
Monomer
Polymers (There are 2 types)
Functions
Stores information/instructions on how
DNA
to make proteins.
Nucleotide
Copies DNA’s instructions and takes them
RNA
to the ribosome.
protein
15. Fill in the blank: The arrangement of the nucleotides determines the kind of ___________________ created.
16. Circle an entire nucleotide on the DNA segment.
P
17. How many nucleotides are shown in the DNA
P
S
A
segment pictured? 8
S
P
P
18. Name the three parts of a DNA nucleotide.
S
G
S
a. Phosphate (P)
P
P
b. Sugar (S)
S
T
S
P
c. Nitrogen containing (nitrogenous) base
P
S
C
Fill
19.
in the DNA molecules to the right using letters:
S
P
P (phosphate)
G (guanine)
P
S (sugar)
T (thymine)
A (adenine)
C (cytosine)
Proteins
20. Fill in the table for proteins:
Monomer
Polymer
Function
Many different functions (ex: the protein
Amino acid
Protein/polypeptide
hemoglobin transports oxygen)
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21. How many different amino acids are used to build proteins in organisms?
22. Fill in the blanks: The order / arrangement of amino acids determines the type of protein made. Even one
incorrect amino acid placement can change a protein’s structure and function.
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