Date: May 25th
Link and Learn
6th DaVinci ‐ Proteins Name
Carlos A. Joaquín Victoria Mariana Christopher José Santiago Joshua Héctor Gabriela Alexandra Humberto Giosué Ariana Alessio Martín Maylin Carlos R. Isabel Sthefanny Ana Caroline Karen Erick Bryan Angie Sandra Arturo Maria Fernanda Daniel Paola
6th Rembrandt ‐ Proteins Name
Mariano Miguel Melanie Alejandro Adriana Fabrizio Felipe Sol Edinson Valeria J. Daniela Eduardo José F. Kimberly Alexandra Enzo Valeria P. Henry Gonzalo Sebastian Mariano Alondra Bruno Camila Jimena Rodrigo María Laura Diana Jesus
Let's remember previous learned concepts...
What are the 4 most important molecules of life, or biomolecules? Click here for a hint 5
PROTEINS • Proteins are the workhorse molecules of all living things. • Proteins are large biomolecules composed of building blocks called Amino Acids. • Proteins are chains of amino acids that twist and fold into certain shapes that determine what the proteins do.
Can you find proteins in your body? Can you find proteins in food?
What foods from the picture have proteins? 9
How is the Structure of Proteins?
Protein Structure • • • •
As we learned before, proteins are long chains of amino acids. However, proteins can have very complex structures. Usually proteins have levels of organization. These levels are represented as:
PRIMARY STRUCTURE PRIMARY STRUCTURE: amino acids are lined up one after the other, determining a long sequence.
SECONDARY STRUCTURE SECONDARY STRUCTURE: the sequence of aminoacids acquires a shape based on the chemical structure of each amino acid. TERTIARY STRUCTURE TERTIARY STRUCTURE: the folded secondary structure interacts with the amino acids nearby, acquiring a new 3D structure. CUATERNARY STRUCTURE CUATERNARY STRUCTURE: the subunits that form a complex protein interact with each other, acquiring a final 3D structure according to its function. 11
What are Proteins useful for?
Proteins' Roles • Proteins accomplish very important and vital functions for cells and organisms in general. • However, there are 3 main areas where proteins have remarkable functions:
1. Structural Proteins: 1. these proteins form supportive or rigid structures in cells or other parts of living organisms.
2. 2. Metabolic Proteins: these proteins have a central role in the chemical reactions of cells and living organisms.
3. Regulatory Proteins: these proteins intervene 3. regulating cellular processes interacting with all the other biomolecules.
Regulatory Action of Proteins in the Cell Cycle
Investigation Group Work: Proteins in your Life and in Society 1. Form 6 groups of 5 students each. 2. Two students from groups 1, 2, and 3 will go to the library for 15 minutes to search information about Use of Proteins in Society in books and the Internet. 3. The students from groups 4, 5, and 6 will go to the library after the 15 minutes. 4. The students that remain in the lab must prepare a Web Diagram about Proteins in your body and food. 5. Prepare a Web Diagram with the information obtained in your book and internet search. 6. Merge the two pieces of information and prepare an oral presentation for next week. 20
K-W-L Chart What I KNOW about this topic
What I WANT to know about this topic
What I LERANED about this topic
SURVEY If you want to contribute in improving your Science class, click in the survey link:
Google Forms Term II ‐ 6th Science ‐ Class 2
Resources Used Slide Resource (Group)
G1 ‐ 2 Image
G1 ‐ 3 Image
G1 ‐ 4 Image
G1 ‐ 5 Animation Idea
G1 ‐ 6 Image
G1 ‐ 8 Image
Proteins in the Body
G1 ‐ 9 Image
G1 ‐ 12 Images
Amino Acid Essential Amino Acids
G1 ‐ 13 Images
Protein Structure 1 Protein Structure 2 Movie Reel
http://bit.ly/1asLoD http://bit.ly/qdfHo http://bit.ly/GOErT
G1 ‐ 14 Movie
G1 ‐ 17 Images
Spider web protein Tip of human hair Bearded man Cytoskeleton proteins
http://bit.ly/XAXMi Wellcome Images http://bit.ly/jcGdd http://bit.ly/jcGdd
G1 ‐ 18 Image Enzyme Animation How Enzymes Work
http://bit.ly/XdeSq McGraw Hill
G1 ‐ 19 Image
Cell Cycle Proteins
G1 ‐ 18 Images
Teacher's Notes This class has been designed to cover the topic of Proteins from Monday May 25th till Friday May 29th. For further knowledge about this topic: 1. Conduct a thorough search under the topic: Proteins on the Web, books and magazines. 2. If findings are not specific, ask your teacher for suggestions.
Objectives • Learn and understand the definition, main characteristics, properties and functions of proteins.
Note: All, or most, of the objectives will be covered during class time, however the student must be responsible for those objectives not covered or concluded.
Vocabulary • • • • • •
Protein Aminoacid DNA Translation Structure Folding
Note: Most of the vocabulary words will be covered during class time, however the student must be responsible for those words not covered or concluded.
Link and Learn You can visit the following websites to improve your understanding on the present topic: • • • • •
http://bit.ly/ElaYL http://science‐learning2009.wikispaces.com http://learningandscience.blogspot.com http://linkandlearn.wikispaces.com http://libraryatstgeorge.blogspot.com
Gerardo LAZARO Science Lead Teacher Email: firstname.lastname@example.org Wiki: http://science‐learning2009.wikispaces.com Blog: http://learningandscience.blogspot.com Twitter: http://twitter.com/glazaro