PROTEIN SYNTHESIS Q3 Flashcards

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1
Q

This is the process that takes place in __________ which the cells generate new proteins. This process involves nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA)

A

Protein Synthesis; ribosomes

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2
Q

Synthesis meaning?

A

to “make something”

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3
Q

What are the processes of protein synthesis

A

transcription and translation

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4
Q

It is a copy of a single gene. They have similar structures as to a DNA.

A

mRNA

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5
Q

It is the process under transcription of creating the equivalent RNA copy of a sequence of DNA.

A

RNA Synthesis

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6
Q

It is when DNA information must first be copied or transcribed to mRNA. This is done inside the nucleus of eukaryotic cells, since it is where DNA is stored.

A

Transcription

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7
Q

What are the three steps in transcription.

A

Initiation
elongation
termination

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8
Q

what happens in the initiation of transcription

A

where RNA polymerase (an enzyme that generates the formation of RNA) binds the promoter region of DNA

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9
Q

This is an enzyme that catalyzes the formation of RNA, binds to the promoter region of DNA.

A

RNA polymerase

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10
Q

The _________ is only a short sequence of DNA, located 25 nucleosides upstream of the site where transcription begins.

A

promoter region

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11
Q

What particular organelle is where protein synthesis is taken place.

A

ribosome

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12
Q

what happens in the elongation process of transcription.

A

RNA polymerase proceeds to separate two strands of DNA. reads the bases one by one and it adds nucleotides to the growing mRNA stand.

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13
Q

what happens in the elongation process in transcription

A

RNA polymerase zips DNA back up, keeping only 10-20 strand bases exposed.

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14
Q

What are the two strands that is used to synthesize mRNA?

A

Template stand
Anti-sense Strand

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15
Q

what happens in the termination process in transcription?

A

RNA polymerase and mRNA strand all separate from the DNA template strand.

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16
Q

This is the process by which a cell makes proteins using the genetic information carried in messenger RNA (mRNA). It is the process in which cytoplasm synthesize proteins after the process of transcription of DNA to RNA.

A

Translation

17
Q

what is the whole process of the transcription of DNA to RNA is called.

A

gene expression

18
Q

what happens in translation

A

mRNA through ribosomes transfers another type of RNA (tRNA) carries protein building blocks (amino acids) to the ribosome.

19
Q

what is the special triplet of bases that is carried by tRNA called.

A

anticodon

20
Q

what is the product of the translation process is called?

A

polypeptide

21
Q

what happens in the termination stage of translation

A

once all amino acids are coded, mRNA have been linked, the completed protein is released from the ribosome.

22
Q

where is the completed protein from the translation process is released from?

A

ribosome

23
Q

This is the process in which a cell makes an exact copy of its own DNA (copy DNA -> DNA).

A

replication

24
Q

How does replication occur

A

in the S-fase in preparation to cell division for the synthesis is transferred from the mother cell to the daughter cell

25
Q

Why replicate DNA?

A

for each new cell receives the correct number of chromosomes

26
Q

In order to unwind DNA, these interactions between base pairs must be broken. What enzyme does performs this.

A

DNA helicase

27
Q

What happens in the process of elongation.

A

it is when a single chromosome is duplicated to form a double unit composed of two chromatids, attached together at the centromere