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WorksheetsBio Unit 5 Monday Quiz 3
Total questions: 30
Worksheet time: 3hrs 30mins
What is the function of mRNA?
Stores genetic information in the nucleus
Can leave the nucleus for instructions for protein synthesis
Creates proteins
Repairs DNA
Describe a protein molecule
Complex 3D structure
Sequence of amino acids
Very similar to lipid structure
Identical to the structure of DNA that coded for it
How many structural classes of proteins are there?
5
7
10
15
Which structural class does hemoglobin belong to?
Transport
Signaling
Contractile
Immunological
Which structural class does insulin belong to?
Transport
Signaling
Contractile
Immunological
Which structural class do antigens belong to?
Transport
Signaling
Contractile
Immunological
What are the 3 stages of gene expression?
Transcription, Editing & Translation
DNA, mRNA and tRNA
Ribosome, Nucleus, Cell
Uracil, Thymine, Adenine
Where does transcription occur?
Ribosome
Nucleus
Cytoplasm
Endoplasmic Reticulum
Where does editing occur?
Ribosome
Nucleus
Cytoplasm
Endoplasmic Reticulum
Where does translation occur?
Ribosome
Nucleus
Cytoplasm
Endoplasmic Reticulum
What happens during transcription?
DNA is read to create primary mRNA
Introns are removed from primary mRNA
mRNA is read by ribosomes to create a protein
tRNA is read to create primary mRNA
What happens during editing?
DNA is read to create primary mRNA
Introns are removed from primary mRNA
mRNA is read by ribosomes to create a protein
tRNA is read to create primary mRNA
What happens during translation?
DNA is read to create primary mRNA
Introns are removed from primary mRNA
mRNA is read by ribosomes to create a protein
tRNA is read to create primary mRNA
What is not part of the structure of an amino acid?
Carboxyl Group
Carbonyl Group
R Group
Amino Group
Examine the diagram closely. It shows a length of DNA, the mature mRNA copied from the DNA after editing, and the amino acid chain produced. What can you say about the matching of the letters that make up the DNA template strand with the letters that make up the mRNA strand?
The letters are complementary except that the T in the DNA strand is replaced by U in the mRNA strand
The introns were removed. First section removed was GCCTGG, second section removed ATACGA.
Amino acids are encoded in sets of three bases. Multiple codons can code for the same amino acid.
The codons in the mRNA are translated by ribosomes into an amino acid chain
Examine the diagram closely. It shows a length of DNA, the mature mRNA copied from the DNA after editing, and the amino acid chain produced. Which mRNA letters were removed when the primary mRNA transcript was edited to form the mature mRNA?
The letters are complementary except that the T in the DNA strand is replaced by U in the mRNA strand
The introns were removed. First section removed was GCCTGG, second section removed ATACGA.
Amino acids are encoded in sets of three bases. Multiple codons can code for the same amino acid.
The codons in the mRNA are translated by ribosomes into an amino acid chain
Examine the diagram closely. It shows a length of DNA, the mature mRNA copied from the DNA after editing, and the amino acid chain produced. Study the mRNA strand and the amino acid chain it coded for carefully. What are the rules for coding the amino acids from the mRNA?
The letters are complementary except that the T in the DNA strand is replaced by U in the mRNA strand
The introns were removed. First section removed was GCCTGG, second section removed ATACGA.
Amino acids are encoded in sets of three bases. Multiple codons can code for the same amino acid.
The codons in the mRNA are translated by ribosomes into an amino acid chain
What does the heat do to the egg white?
Denaturation of the protein structure
Cooks it so it is delicious
Transcription of the DNA in the egg
Translation of the mRNA in the egg
Which amino acid does ACC code for?
Thr
Asn
Lys
Asp
Which amino acid does AAG code for?
Thr
Asn
Lys
Asp
Which amino acid does AAU UAU UUU code for?
Thr Phe Asn
Asn Tyr Phe
Lys Tyr Asn
Asp Lys Asn
What is the effect (in general) of changing the last base codon?
Changing the last base of the codon will always change the amino acid it codes for.
Changing the last base of the codon will likely not result in any changes.
Changing the first base of the codon will not result in any changes of the amino acid produced
The first base of the codon will take priority over the third codon.
How are globular proteins important in organisms?
They are catalytic
They are regulatory
They provide support and structure
They are contractile
How are fibrous proteins important in organisms?
They are catalytic
They are regulatory
They provide support and structure
They are contractile
Which type of protein is in the image?
Globular
Fibrous
Antigen
Insulin
Which type of protein is in the image?
Globular
Fibrous
Antigen
Insulin
Where is genetic information found in a eukaryotic cell?
Nucleus
Ribosome
Endoplasmic Reticulum
Golgi Apparatus
Which protein function correctly describes Internal Defense?
Proteins can make up structural components of tissues and organs
Some proteins form antibodies that combat disease-causing organisms
Some proteins can act as carrier molecules to transport molecules from one place to another
Proteins can function as chemical messenger molecules
Which protein function correctly describes Transport?
Proteins can make up structural components of tissues and organs
Some proteins form antibodies that combat disease-causing organisms
Some proteins can act as carrier molecules to transport molecules from one place to another
Proteins can function as chemical messenger molecules
Which protein function correctly describes Regulation?
Proteins can make up structural components of tissues and organs
Some proteins form antibodies that combat disease-causing organisms
Some proteins can act as carrier molecules to transport molecules from one place to another
Proteins can function as chemical messenger molecules
