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What
are
proteins?
Learning Objective
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
What are proteins?
Biomolecules
 Proteins are polymers of smaller subunits called the amino acids.
What is the general formula of amino acids?
Biomolecules
 Amino acids contain amino (–NH2) and carboxyl (–COOH) functional
groups. Depending upon the relative position of amino group with
respect to carboxyl group, the amino acids can be classified as α, β, γ, δ
and so on. Only α-amino acids are obtained on hydrolysis of proteins.
How are amino acids classified?
Biomolecules
How are amino acids classified?
Biomolecules
What are Zwitter ions?
Biomolecules
What do we know about amino acids?
Biomolecules
 All amino acids, except glycine, are optically active.
Most naturally occurring amino acids have L-configuration.
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
How are proteins structured?
Biomolecules
How are proteins structured?
Biomolecules
How are proteins structured based on the shape of molecule?
Biomolecules
How are proteins structured based on the shape of molecule?
Biomolecules
How are proteins structured based on the shape of molecule?
Biomolecules
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
What is denaturation of proteins?
Biomolecules
 When a protein in its native form, is subjected to physical change like change in
temperature or chemical change like change in pH, the hydrogen bonds are
disturbed. Due to this, globules unfold and helix get uncoiled and protein loses
its biological activity and is called denaturation.
What is denaturation of proteins?
Biomolecules
 The reverse process is called as renaturation of proteins.
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
To discuss classification of amino acids
To interpret structure of proteins
To explain denaturation of proteins
Learning Outcomes
How confident do you feel?
What
are
proteins?
Learning Objective
Biomolecules
Learning Activity
Can you recall the list of amino acids and their
abbreviations?
12th Cbse - Biomolecules

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12th Cbse - Biomolecules

  • 2. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes
  • 3. What are proteins? Biomolecules  Proteins are polymers of smaller subunits called the amino acids.
  • 4. What is the general formula of amino acids? Biomolecules  Amino acids contain amino (–NH2) and carboxyl (–COOH) functional groups. Depending upon the relative position of amino group with respect to carboxyl group, the amino acids can be classified as α, β, γ, δ and so on. Only α-amino acids are obtained on hydrolysis of proteins.
  • 5. How are amino acids classified? Biomolecules
  • 6. How are amino acids classified? Biomolecules
  • 7. What are Zwitter ions? Biomolecules
  • 8. What do we know about amino acids? Biomolecules  All amino acids, except glycine, are optically active. Most naturally occurring amino acids have L-configuration.
  • 9. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 10. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 11. How are proteins structured? Biomolecules
  • 12. How are proteins structured? Biomolecules
  • 13. How are proteins structured based on the shape of molecule? Biomolecules
  • 14. How are proteins structured based on the shape of molecule? Biomolecules
  • 15. How are proteins structured based on the shape of molecule? Biomolecules
  • 16. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 17. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 18. What is denaturation of proteins? Biomolecules  When a protein in its native form, is subjected to physical change like change in temperature or chemical change like change in pH, the hydrogen bonds are disturbed. Due to this, globules unfold and helix get uncoiled and protein loses its biological activity and is called denaturation.
  • 19. What is denaturation of proteins? Biomolecules  The reverse process is called as renaturation of proteins.
  • 20. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 21. To discuss classification of amino acids To interpret structure of proteins To explain denaturation of proteins Learning Outcomes How confident do you feel?
  • 23. Biomolecules Learning Activity Can you recall the list of amino acids and their abbreviations?

Editor's Notes

  1. An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
  2. Measurable outcomes that students can demonstrate and self-assess against Must be written using Bloom’s taxonomy verbs Verbs based on students ability and pitch of lesson It must be clear that students understand the outcomes before moving on Make an activity of this slide: Ask students to read this aloud Ask them to paraphrase Ask that they explain what they mean Ask what they already know related to these outcomes There may be as few as 2 outcomes, or max 4
  3. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  4. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  5. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  6. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  7. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  8. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  9. Revisit the first outcome and use the polling function to allow students to privately self-assess You may feel that the students do not need privacy to self-assess and in this instance, the chat box may be used Polling must be used until you can fully assess their confidence to use the chat box and express honesty If students self-assess as a 4/5, ensure that you are fully confident in their assessment Ask questions Ask for examples Students to ask each other questions If a few students self-assesses as a 3, but others as a 4/5, discretely ask the higher ones to give examples and to explain their achievement/understanding If all students are a 3 or below, do not move on. Move to a blank page at the end of the presentation and use as a whiteboard to further explain If students are ½, go back to the beginning Always ask students what the gaps are and help them to identify these in order to promote metacognition
  10. 1. The outcome changes colour when achieved to the same colour as the objective to demonstrate the connection, progress and what happens next
  11. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  12. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  13. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  14. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  15. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  16. As previously.
  17. As previously.
  18. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  19. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge
  20. As previously.
  21. As previously.
  22. An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
  23. The next slides should be focused on achieving first outcome Make reference to the outcome in the teaching Fill this with thinking skills activities, peer assessment, higher-order questioning, engaging activities and challenge