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WorksheetsProtein Synthesis
Total questions: 15
Worksheet time: 16mins
Protein synthesis occurs in two steps. What step is pictured?
transcription
translation
DNA replication
Where does the process pictured below occur inside the cell?
nucleus
ribosome
chloroplast
mitochondria
If there are only 20 different amino acids, how can there be so many different types of proteins?
Each protein is determined by the sequence of amino acids.
There are only a few number of proteins.
What is the function of mRNA?
mRNA carries the copy of the DNA (gene) to the nucleus to be copied.
mRNA carries the amino acid from the cytoplasm to the ribosome to be attached to the protein chain.
mRNA carries the copy of the DNA (gene) to the ribosome to be translated.
mRNA carries the amino acid from the ribosome to the nucleus to be attached to the protein chain.
Given the following DNA sequence, what would be the mRNA sequence?
TAC GCA TAG GCC ATC
AUG CGU AUC CGG UAG
AUG GCA AUC CGG UAG
TAC GCA TAG GCC ATC
AUG CGU AUC CGG AUC
What is the function of RNA polymerase?
RNA polymerase glues the Okazaki fragments of DNA together during DNA replication.
RNA polymerase adds the RNA bases to the exposed DNA during transcription to produce mRNA.
RNA polymerase adds the amino acids to the protein chain during translation to produce an amino acid chain.
RNA polymerase breaks the hydrogen bonds between the nitrogen bases of DNA during transcription.
Proteins are produced by the ribosome during protein synthesis. What sub-units are assembled to make proteins?
amino acids
monosaccharrides
fatty acids
nucleotides
Given the following mRNA sequence, determine the amino acid sequence.
AUGGCACGGAAGCAGUGA
Met-Ala-Arg-Lys-Gln-Stop
Met-Ala-Arg-Cys-Gln-Stop
Met-Stop
Met-Ala-Lys-Arg-Gln-Stop
What is the function of tRNA?
tRNA brings the correct nitrogen base to the nucleus during transcription.
tRNA builds the strand of mRNA during transcription in the nucleus.
tRNA breaks the hydrogen bonds between the nitrogenous bases of DNA during transcription.
tRNA brings the correct amino acid to the ribosome during translation.
What are the 3 stop codons?
UAA
AUG
UAC
UAG
UGA
Where are anticodons located?
rRNA
mRNA
DNA
tRNA
Which biomolecule carries the code for the sequence of amino acids produced in protein synthesis?
carbohydrates
lipids
proteins
nucleic acids
Which biomolecule are amino acids the monomer of?
carbohydrates
lipids
proteins
nucleic acids
What type of bond holds nitrogenous bases together in DNA?
ionic
hydrogen
covalent
How can you tell Deoxyribonucleic Acid & Ribonucleic Acid apart?
Their sugars
Their nitrogenous bases
The number of bases
Their length
The number of strands
