WorksheetsProtein Synthesis
Total questions: 21
Worksheet time: 14mins
Actin is a protein that helps the cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown.
Based on this information, actin is most likely —
an enzyme protein
a structural protein
a messenger protein
a transport protein
A student athlete wants to choose a drink that will provide quick energy for track practice.
Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?
Select ONE correct answer.
Calories
Total Fat
Sodium
Total Carb
Protein
Which table correctly identifies the function of each type of RNA?
A) Transfer RNA: Carries genetic information from DNA to ribosomes;
Ribosomal RNA: A component of ribosomes that helps catalyze protein synthesis;
Messenger RNA: Brings amino acids to growing polypeptides in ribosomes.
B) Transfer RNA: A component of ribosomes that helps catalyze protein synthesis;
Ribosomal RNA: Brings amino acids to growing polypeptides in ribosomes;
Messenger RNA: Carries genetic information from DNA to ribosomes.
C) Transfer RNA: Brings amino acids to growing polypeptides in ribosomes; Ribosomal RNA: A component of ribosomes that helps catalyze protein synthesis;
Messenger RNA: Carries genetic information from DNA to ribosomes.
D) Transfer RNA: Carries genetic information from DNA to ribosomes;
Ribosomal RNA: Brings amino acids to growing polypeptides in ribosomes;
Messenger RNA: A component of ribosomes that helps catalyze protein synthesis.
What is the amino acid sequence that will be translated from the mRNA sequence?
Threonine - Isoleucine - Serine - Tryptophan
Cysteine - Tyrosine - Arginine - Threonine
Serine - Methionine - Tyrosine - Tryptophan
Proline - Arginine - Histidine - Arginine
Which description identifies the purpose of Step A in this process?
To correct mutations in the DNA sequence
To produce an exact copy of the DNA molecule
To copy the DNA of a gene sequence onto a strand of mRNA
To assist in the folding of a protein.
A model of transcription and a codon chart are shown. Which amino acid would be coded first from the DNA strand being transcribed?
Cys
Phe
Ile
Met
What amino acid sequence is encoded in the partial DNA segment?
Serine – Threonine – Tyrosine
Serine – Serine – Tyrosine
Serine – Threonine – Methionine
Serine – Alanine – Methionine
Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?
The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine.
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of adenine is paired with thymine.
The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine.
Which process is responsible for the synthesis of proteins in the cell?
Photosynthesis
Replication
Transcription
Translation
What is the role of ribosomal RNA (rRNA) in protein synthesis?
It carries amino acids to the ribosome.
It carries genetic information from DNA to the ribosome.
It modifies proteins after synthesis.
It forms the core of the ribosome's structure and catalyzes protein synthesis.
During translation, which molecule acts as the template for protein synthesis?
tRNA
rRNA
DNA
mRNA
Label the process
What are the parts of translation?
mRNA
ribosome
tRNA
amino acid
anticodon
codon
polypeptide chain
Which of the following are related to TRANSLATION only?
The job of tRNA is to
copy the genetic code from DNA
bring amino acids to the ribosome
bring the code from the DNA to the ribosome
synthesize amino acids
RNA polymerase is an enzyme that (a) and
(b) using complementary base pairing to make the mRNA.
The initial steps in gene expression are modeled below. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?
Process: (a)
Product: (b)
The diagram shows a cellular process in which a double-stranded molecule of nucleic acid gives rise to a single-stranded molecule of nucleic acid. Place the terms that correctly describe the process: (a) is (b) into (c)
How many nucleotides make up a codon?
1
2
3
4
Label the anticodon
A sequence of amino acids called a (a) is produced during the process of (b) . During this process, the (c) of a tRNA molecule binds to a codon of mRNA.
