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WorksheetsProtein Synthesis DOK 3
Total questions: 10
Worksheet time: 20mins
An antibiotic binds to tRNA molecules and prevents them from binding to an amino acid. What will happen as a result of this?
Protein synthesis will be stopped
Proteins being synthesized will not be folded properly
Protein synthesis will not be able to make the correct mRNA
Proteins being synthesized will be longer than normal.
With which cellular process are ribosomes directly involved?
Doubling genetic material before cell division
Producing cellular energy molecules from glucose
synthesizing structural and functional proteins
separating sister chromatids during cell division
What DNA sequence would code for the tripeptide: leucine - serine - histidine?
AAC - TCG - GTA
AAU - UCG - GUA
TAA - GCT - GTG
UUG - AGC - CAU
The events that occur during protein synthesis are listed in random order:
1.) mRNA is formed
2.) Amino acids form polypeptides
3.) A strand of DNA segment unwinds
4.) mRNA attaches to ribosomes
5.) tRNA supplies the required amino acids
What is the correct sequence of events that occur during protein synthesis?
3,1,4,2,5
3,1,4,5,2
4,1,3,5,2
4,1,2,3,5
How does DNA determine a trait such as eye color of an organism?
It interacts with proteins that control eye color
It codes for mRNA that directly determines eye color
It codes for proteins that directly determine eye color
It produces pigments that make up eye color
What are the processes P and Q?
P: Translation and Q: Transcription
P: Translation and Q: Replication
P: Transcription and Q: Translation
P:Transcription and Q: Replication
A Student wrote the following about the various features of RNA molecules:
- Bases: C, A, G, U
- Type of Sugar: Deoxyribose
- Structure: Single Stranded
- Function: Protein Synthesis
The student made an error while creating the table. Which statement describes the change that the student needs to make in the table?
The type of base should be thymine instead of uracil
The type of sugar should be ribose instead of deoxyribose
The structure should be a double helix instead of a single strand.
The function should be to help in the synthesis of DNA instead of protein
The overproduction of a protein can be an advantage or a disadvantage. How is this possible?
Extra proteins can be stored, but if they are not stored properly they can be harmful.
Extra proteins can be moved to other organs, but if they go to the wrong organs, they can be harmful.
Some proteins are advantageous no matter how much is produced, while others are harmful in large doses.
Sometimes organisms need more of a particular protein, but producing it at the wrong time could be harmful.
A segment of DNA is isolated from a human chromosome. The DNA segment is analyzed and found to contain a total of 100 deoxyribose molecules are 40 adenine bases (among both strands).
Which statement must also be true about this DNA segment?
It contains 40 thymine bases and 100 phosphate groups
It contains 40 thymine bases and 200 phosphate groups
It contains 80 thymine groups and 100 phosphate groups
It contains 80 thymine groups and 200 phosphate groups
A student summarizes the central dogma in the following way:
- DNA serves as a template which is translated into mRNA which is transcribed into amino acids to create proteins.
The students statement is incorrect. Why?
DNA doesn't serve as the template, it simply turns into mRNA when it receives signal to do so from the nucleus.
Amino acids do not make up proteins, proteins make up amino acids.
DNA is transcribed into mRNA and translated into amino acids that create proteins.
DNA is transcribed into tRNA which translates amino acids into proteins.
