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Protein Synthesis
Содержание
- 1. Protein Synthesis
- 2. Protein Synthesis (Gene Expression) NotesProteins (Review)Proteins make up all living materials
- 3. Proteins are composed of amino acids –
- 4. Proteins are manufactured (made) by the ribosomes
- 5. Function of proteins:Help fight diseaseBuild new body
- 6. Making ProteinsStep 1: Transcription
- 7. Making a Protein—TranscriptionFirst Step: Copying of genetic
- 8. Part of DNA temporarily unzips and is
- 9. mRNA then goes through the pores of
- 10. Making ProteinsStep 2: Translation
- 11. Making a Protein—TranslationSecond Step: Decoding of mRNA
- 12. These amino acids come from the food
- 13. A series of three adjacent bases in
- 14. mRNA carrying the DNA instructions and tRNA carrying amino acids meet in the ribosomes.
- 15. Amino acids are joined together to make a protein.Polypeptide = Protein
- 16. Genetic code has codons, which codes amino acids. 3 base = 1 codon = amino acid
- 17. AUG/AAC/GAC/UAA___________/___________/___________/____________MethionineAsparagineAspartic AcidStop
- 18. Protein synthesis
- 19. Скачать презентанцию
Protein Synthesis (Gene Expression) NotesProteins (Review)Proteins make up all living materials
Слайды и текст этой презентации
Слайд 2Protein Synthesis (Gene Expression) Notes
Proteins (Review)
Proteins make up all living
materials
Слайд 3Proteins are composed of amino acids – there are 20
different amino acids
Different proteins are made by combining these 20
amino acids in different combinations
Слайд 5Function of proteins:
Help fight disease
Build new body tissue
Enzymes used for
digestion and other chemical reactions are proteins
(Enzymes speed up
the rate of a reaction)4. Component of all cell membranes
Слайд 7Making a Protein—Transcription
First Step: Copying of genetic information from DNA
to RNA called Transcription
Why? DNA has the genetic code for
the protein that needs to be made, but proteins are made by the ribosomes—ribosomes are outside the nucleus in the cytoplasm.DNA is too large to leave the nucleus (double stranded), but RNA can leave the nucleus (single stranded).
Слайд 8Part of DNA temporarily unzips and is used as a
template to assemble complementary nucleotides into messenger RNA (mRNA).
Слайд 9mRNA then goes through the pores of the nucleus with
the DNA code and attaches to the ribosome.
Слайд 11Making a Protein—Translation
Second Step: Decoding of mRNA into a protein
is called Translation.
Transfer RNA (tRNA) carries amino acids from the
cytoplasm to the ribosome.
Слайд 12These amino acids come from the food we eat. Proteins
we eat are broken down into individual amino acids and
then simply rearranged into new proteins according to the needs and directions of our DNA.
Слайд 13A series of three adjacent bases in an mRNA molecule
codes for a specific amino acid—called a codon.
Each tRNA has
3 nucleotides that are complementary to the codon in mRNA.Each tRNA codes for a different amino acid.
Слайд 17AUG/AAC/GAC/UAA
___________/___________/___________/____________
Methionine
Asparagine
Aspartic Acid
Stop
