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National Biology

National Biology. Proteins and Enzymes a: Protein structures. Recap. Using ABCD cards or mini-whiteboards answer the following questions. 1. What is the meaning of transcription?. To translate something To copy something To make something. 2. What is the meaning of translation?.

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National Biology

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  1. National Biology Proteins and Enzymes a: Protein structures

  2. Recap • Using ABCD cards or mini-whiteboards answer the following questions

  3. 1. What is the meaning of transcription? • To translate something • To copy something • To make something

  4. 2. What is the meaning of translation? • To copy something • To make something • To decode something

  5. 3. Where is DNA found? • The ribosomes • The cytoplasm • Mitochondria • Nucleus

  6. 4. Where is protein made? • The nucleus • The cytoplasm • The nucleus • The ribosomes

  7. 5. What information is found on DNA? • The genetic code for proteins • The jeans for protein • Protein

  8. 6. How is the code on DNA transported to ribosome? • DNA leaves the nucleus • Proteins take it there • mRNA molecule takes it there

  9. 7. What is the mRNA molecule used for? • The code to put protein in order • The code to put amino acids in order • The code to put jeans in order • The code to put genes in order

  10. What are we learning today? We are learning to: • To state what protein is • Explain why the structure of proteins is determined by amino acids sequence • To state what the different forms of protein are

  11. What is protein? • Protein is composed of many amino acids joined together • Amino acids are small molecules - there are only 20 - 8 of which are essential i.e. you cannot make them yourself and have to get them from what you eat.

  12. The amino acids IonSource, LLC

  13. How protein is made • Protein starts off at the ribosome as a single chain called a polypeptide

  14. How protein is made cont’d • The amino acid sequence determines how the protein is folded into the many different types of proteins we have.

  15. Types of protein • Globular Protein - Rounded shape - Hormones - Enzymes - Antibodies

  16. Types of protein cont’d • Fibrous - coiled - keratin in nails, skin and hair - collagen

  17. Types of protein cont’d • Conjugated • Contains protein and non-protein part • haemoglobin

  18. Summary • Find someone who (record answers on paper) • Can tell you how protein is made • Can tell you how many amino acids there are • Can describe fibrous protein and give an example • Can describe globular protein and give an example • Can describe conjugated protein and give an example

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