Lesson 3: Protein Synthesis Answers

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1
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Which body system produces proteins that help fight infections?

A
the digestive system
B
the immune system
C
the muscular system
D
the circulatory system
2
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Geoffrey made a mistake in listing the main steps of translation in order as elongation, initiation, and termination. Which statement describes his error?

A
Initiation occurs before elongation.
B
Termination is not one of the steps.
C
Termination occurs before elongation.
D
Elongation is not one of the steps.
4

Which process is part of transcription?

A
DNA is copied to create a second DNA strand.
B
mRNA codons and tRNA anticodons assemble amino acids.
C
DNA is unzipped with the aid of DNA polymerase.
D
mRNA is synthesized from a strand of DNA.
6

Albumin is a protein found in blood that helps to regulate amount of fluids in the body. What is the main function of albumin?

A
to provide structure
B
to fight disease
C
to maintain homeostasis
D
to regulate cell reactions
7

The diagram shows one step in the process of protein synthesis.The process shown in the diagram is called .

Answer not available
9

Which statements describe functions of antibodies? Select two options. They maintain the cell’s shape.They regulate cell processes.They protect the body from infectious agents.They signal the immune system to destroy pathogens.They speed up biochemical reactions.They send electrical signals.

A
They maintain the cell’s shape.
B
They regulate cell processes.
C
They protect the body from infectious agents.
D
They signal the immune system to destroy pathogens.
E
They speed up biochemical reactions.
F
They send electrical signals.
10

What is the function of RNA polymerase in protein synthesis?

A
It brings the tRNA to the ribosome.
B
It bonds the DNA strand.
C
It unzips the DNA strand.
D
It translates the DNA strand.
12

What is the function of tRNA?

A
to code for protein synthesis
B
to carry the synthesized genetic information from the nucleus to the ribosomes
C
to synthesize proteins from RNA
D
to bring amino acids to the ribosomes to be assembled into proteins
13

What is the function of the protein keratin?

A
to provide support and structure for cells in hair, skin, and nails
B
to fight infections caused by bacteria and viruses
C
to increase chemical reaction rates in the digestive system
D
to transmit chemical signals throughout the body
14

Which statement describes the relationship between transcription and translation?

A
The proteins made during transcription are used to make RNA during translation.
B
The proteins made during transcription are used to make DNA during translation.
C
The RNA made during transcription is used to make proteins during translation.
D
The DNA made during transcription is used to make proteins during translation.
15

Which statement best summarizes what happens during transcription?

A
A DNA template is used to create an mRNA strand.
B
An mRNA template is used to create a DNA strand.
C
A DNA template is used to create a ribosome.
D
An mRNA template is used to create a tRNA strand.
16

Where are proteins made in the cell?

A
nucleus
B
ribosomes
C
cytoplasm
D
cell membrane
17

Where are proteins made in the cell?

A
nucleus
B
ribosomes
C
cytoplasm
D
cell membrane
18

Which statements describe functions of antibodies? Select two options.

A
They maintain the cell’s shape.
B
They regulate cell processes.
C
They protect the body from infectious agents.
D
They signal the immune system to destroy pathogens.
E
They speed up biochemical reactions.
F
They send electrical signals.
19

Albumin is a protein found in blood that helps to regulate amount of fluids in the body. What is the main function of albumin?

A
to provide structure
B
to fight disease
C
to maintain homeostasis
D
to regulate cell reactions
20

Which statement best summarizes what happens during transcription?

A
A DNA template is used to create an mRNA strand.
B
An mRNA template is used to create a DNA strand.
C
A DNA template is used to create a ribosome.
D
An mRNA template is used to create a tRNA strand.
21

What is created between 2 amino acids during translation?

A
DNA polymerase
B
peptide bond
C
hydrogen bond
D
RNA polymerase

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