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Echo,Jason,Philip

Proteins. Echo,Jason,Philip. Menu. Brief introduction. 1. Amino acid. 2. Soluble and insoluble. 3. Expand. 4. Brief introduction. Proteins are complex molecules made up of C,H,Obut they also contain N,S. it is long chain molecules made up of smaller molecules called amino acids.

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Echo,Jason,Philip

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  1. Proteins Echo,Jason,Philip

  2. Menu Brief introduction 1 Amino acid 2 Soluble and insoluble 3 Expand 4

  3. Brief introduction Proteins are complex molecules made up of C,H,Obut they also contain N,S. it is long chain molecules made up of smaller molecules called amino acids . What is protein ? proteins

  4. Proteins • Proteins have4 levels • Primary order of AA • Secondary folding chain of AA • Tertiary 3-D shape of protein • Quaternary multiple proteins combined together

  5. Amino acid different amino acid molecules peptide bond part of a protein molecule

  6. Amino acid formation polar passive charge negative charge none polar 1 2 3 4 key words

  7. Soluble comment proteins water cytoplasm blood gift! enzymes Q4：Do you know the 5 important properties? Q3:Do you know the three type that enzymes can be divided by their's function? Q1:What enzymes are? Q2:How enzymes work? review part!

  8. Soluble comment proteins enzymes There are more enzymes in our bodies and more integrated ,our body will be more healthy . Human bodies and mammals contain about 5000 kinds of enzymes .

  9. Soluble comment proteins —Only exist in the blood of vertebrate . —Exterminate the pathogen . antibodies —important part to —metabolism ,growth and reproduction hormones —transport oxygen —make blood look red haemoglobin

  10. Insoluble proteins main function make fibres for example fibrous protein found in skin and hair keratin

  11. Summary • Proteins are vital for growth and repair of cells and tissues as they formimportant components of cell membranes.

  12. Question 1 Expand Which one is not the main physiological function of proteins in human bodies? C A)transportation B)immune(means use antibodies to prevent something bad for us) C)genetic D)regulation Genetic effect comes from the nucleic acid rather than proteins.

  13. Question 2 Expand Which one is the function that proteins have but sugar doesn't have? A A)control the matabolism B)make up cell membrane C)make up genetic material D)the main energy for organism Hormones is a kind of protein,and it can control the matabolism but suger can't.

  14. Question 3 B Expand The relation of Protein primary structure and its function,which one is right? A)the function must be different if protein make up by different amino acid. B)the function of the protein will be more similar if the protein primary structure are more similar. C)the same protein comes form different organism,the primary structure is the same. D)all of them are wrong. Use Def. of protein to solve this problem.

  15. Video Time！ http://video.about.com/biology/What-Are-the-Functions-of-Proteins-.htm#vdTrn

  16. Thanks for listening Echo,Jason,Philip

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