Protein Synthesis Review Worksheet #3
Name
Period
1) What do we call the complex of 8 to 10 enzymes that performs RNA editing (a.k.a. RNA splicing
or RNA processing?
2) How many different amino acids are there?
3) Explain how many different transfer RNA molecules there are AND why there is that many.
4) What do al tRNA’s carry?
5) Explain the “Wobble Effect”
6) True or False Proteins cause phenotypes
7) What is the process called that transfers informantion from DNA to mRna?
Does this occur in the NUCLEUS or CYHTOPLASM?
8) Thymine is a nitrogenous base in DNA. What nitrogenous base takes the place of thymine in
RNA?
9) Is uracil a PYRIMINDINE or a PURINE?
10) Where does tRNA get more amino acids once it drops an amino acid off at the ribosome?
11) Define “Primary Structure of Protein”
12) What does the prefix “poly” mean as in polypeptide?
13) What are the 2 secondary structures of proteins? (2 pts)
14) Define “teriary structure of protein”
15) Which structure of protein is hemoglobin?
16) What blood cells do we find hemoglobin in?
17) What is the function of hemoglobin?
18) What enzyme attaches the two DNA strands together after mRNA is made?
19) What enzyme seperates the DNA strands and helps mRNA form?
20) Draw the “generalized structure of an amino acid AND lable the two functional groups.
21) What type of chemical reaction occurs when a protein becomes amino acids?
22) What type of chemical reaction occurs when amino acids become a protein?
23) What do we call SINGLE COVALENT BOND that connects amino acids?
24) Explain what happens when RNA editing (A.k.a. RNA splicing or RNA processing ) and what the
TWO products are that made at the end.
25) How many nitrogenous bases is a “codon”?
26) On what molecule do we find codons?
27) Draw and display HOW a peptide bond is formed
28) Draw and display HOW a pepetide bond is broken and what results from it.
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How many nitrogenous bases is a “triplet”?
On what molecule do we find triplets?
How many nitrogenous bases are in an “anitcodon”?
On what molecule do we find anitcodons?
What is the process called that transfers information from mRNA to amino acids?
Does this occur in the NUCLEUS or CYTOPLASM?
What is the name of the WEAK intermolecular bonds that cause the two secondary structures of
protein?
What organelle makes proteins?
Draw a typical ribosome AND label the two main parts.
Proteins are coded for by
Is RNA SINGLE-STRANDED or DOUBLE-STRANDED
Each nucleotide in RNA is made up for a 5_carbon sugar called a pentose, a phosphate group
and a
The pentose sugar in RNA is called
RNA has the nitrogenous base called
instead of thymine.
List AND describe the 3 types of RNA
43) Tell the difference between “introns” and “exons”.
44) What is ALWAYS the “start codon”?
45) What are the THREE “stop codons”?
46) List the 5 differences between DNA and RNA>
47) What are the two types of chromosomes?
48) What sex would “XX” be?
49) What sex would “XY” be?
50) True or Fasle
Bacteria do NOT usually have introns.
51) What would the mRNA codon sequence be for the following DNA strand?
TAC GGT CGT CGG CAT TAT AGT GGG GAG CAT AAA TTT GCG ATC
52) What is the minimum number of nitrogenous bases in mRNA coding for the B-pleaded sheet in
hemoglobin, which has 146 amino acids? ( HINT: do NOT forget about the “start and stop
codons”)
53) What would the amino acid sequence be for the following DNA strand?
TAC GAT TAC TAG CAG GAG ACG TAA AAA GGA GGC GGT GGG CCG CTT CTA ATT
54) What would a “possible” DNA strand look like for an amino acid sequence of:
(HINT: do NOT forget about the “start and stop codons”)
Arginine- Methionine- lysine-glycine-alanine-valin-proline