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Protein Synthesis

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

First step

a)

Copy part of the base sequence from DNA into RNA

RNA uses this to direct the production of proteins

b)

Copy part of the base sequence from RNA into DNA

RNA uses this to direct the production of proteins

2.

Ribonucleic Acid

a)

sugar (Ribose)

phosphate group

Bases ( A, U , C, G)

b)

sugar (Deoxyribose)

phosphate group

Bases ( A, U , C, G)

c)

sugar (Ribose)

group

Bases ( A, U , C, G)

3.

RNA

a)

Travel in Cytoplasm

Single Stranded

Has U instead of T

Ribose sugar

Blueprint

b)

Stays in nucleus

Double Stranded

Has T

Deoxyribose sugar

Master plan

4.

DNA

a)

Travel in Cytoplasm

Single Stranded

Has U instead of T

Ribose sugar

Blueprint

b)

Stays in nucleus

Double Stranded

Has T

Deoxyribose sugar

Master plan

5.

Function of RNA

a)

Messenger mRNA

Ribosmal rRna

Transfer tRNA

b)

texting tRNA

Ribosmal rRna

combine cRNA

6.

Messenger RNA

a)

Takes DNA code from the Nucleus to Ribosome

b)

Takes DNA code from the Ribosome to Nucleus

c)

Takes DNA code from the Nucleus to Protein

7.

Transfer RNA

a)

Translates the mRNA code into a string of amino acids to create proteins

b)

Translates the rRNA code into a string of amino acids to create proteins

c)

translates the tRNA code into a string of amino acids to create proteins

8.

Ribosomal RNA

a)

makes up ribosomes and serves as the place where proteins are assembled

b)

makes up DNA and serves as the place where proteins are assembled

c)

makes up ribosomes and serves as the place where proteins are disassembled

9.

Transcription

a)

Process by which DNA is used to make a single stranded complementary mRNA molecue using DNA as template U's instead of T's

b)

Process by which RNA is used to make a single stranded complementary DNA molecue using DNA as template U's instead of T's

10.

Codons

a)

3 mRNA base sequences that make a 3 letter words, that specify a single amino acid to be added to the polypeptide chain

b)

4 mRNA base sequences that make a 4 letter words, that specify a single amino acid to be added to the polypeptide chain

11.

Since their are a four bases in RNA

a)

There are 64 possible different codons or different base sequence

b)

There are 44 possible different codons or different base sequence

c)

There are 90 possible different codons or different base sequence

d)

There are 13 possible different codons or different base sequence

12.

Translation

a)

Process of decoding mRNA message into a protein

b)

Process of decoding DNA message into a protein

c)

Process of making mRNA message into a protein

13.

What uses the sequence of codons in mRNA to assemble amino acids into polypeptide chain

a)

Ribosomes

b)

Nucleus

c)

Lysosome

14.

First step of translation

a)

when ribosome attaches to a mRNA

b)

when ribosome attaches to a tRNA

15.

As the Ribosome reads each codon in mRNA

a)

it directs tRNA to bring the specific amino acid into the ribosome

b)

it directs rRNA to bring the specific amino acid into the ribosome

16.

Anticodon

a)

each tRNA molecule has three unpaired bases, which is complementary to one mRNA codon

b)

each rRNA molecule has three unpaired bases, which is complementary to one mRNA codon

c)

each tRNA molecule has three unpaired bases, which is noncomplementary to one mRNA codon

17.

Each tRNA molecule

a)

carries just one kind of amino acid

b)

carries two kind of amino acid

c)

carries three kind of amino acid

18.

tRNA Continuously

a)

pulls amino acids from the cytoplasm

b)

pulls lipids from the cytoplasm

c)

pulls starches from the cytoplasm

19.

Ribosome

a)

puts peptide bonds between amino acids as they are brought in

b)

puts covalent bonds between amino acids as they are brought in

c)

puts hydrogen bonds between amino acids as they are brought in

20.

"Stop" Codon

a)

Polypeptide chain stops growing as soon as it reaches a Stop codon on the mRNA sequence

b)

Polypeptide chain keeps growing as soon as it reaches a Stop codon on the mRNA sequence

21.

Polypeptide chain and mRNA molecule

a)

Released by Ribosome

b)

Released by Nucleus

c)

Released by ER

22.

Transcription happens in the ...

a)

nucleus

b)

ribosome

c)

cytoplasm

d)

lysosome

23.

Translation happens in the...

a)

Ribosome/Cytoplasm

b)

Nucleus

c)

lysosome

d)

ER