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Producing Proteins

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DNA is a genetic code for producing specific proteins

 

Genetic (base) code                  Protein
 
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Two Stages of Protein Synthesis

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Process to produce proteins

 

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Stage 1 - Producing Proteins

 Stage 1 - Nucleus


Double stranded DNA makes a
single stranded copy called mRNA.

mRNA Function **(learn this)**
Takes complementary DNA code
from nucleus to ribosome.

 

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Stage 2 - Producing Proteins

 Stage 2 - Ribosome



mRNA: 1. nucleus  2. cytoplasm  3. ribosome
& attaches onto ribosome.

Different  mRNA's base sequence,


Different Amino acid sequence


Different protein synthesised


 

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Types of Proteins


Different base sequences = different type of protein synthesised

 

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Types of Proteins


Different base sequences = different type of protein synthesised

 

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Allows active transport of substances across the
membrane.


 

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Chemical messenger that travels in the blood.


 

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Defend body against disease by destroying pathogens.


 

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Binds to a specific hormone at target organ 
OR
Detects a stimulus in sense organ.


 

Biological catalyst.
Speeds up reaction but not used up.


 

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