Q2 – Week 1 – 20-21
Week of 11/16- 11/20
*Please REFRESH this Page every time you view!!!
The 5 day – A, B, C, D cycle looks like this:
Day Period
7 8
In class: A Academic Study AP BIOLOGY
Remote: Academic Study AP BIOLOGY
In class: B AP BIOLOGY AP BIOLOGY
Remote: AP BIOLOGY AP BIOLOGY
Monday In class: C AP BIOLOGY AP BIOLOGY
Remote: AP BIOLOGY AP BIOLOGY
In class: D Academic Study AP BIOLOGY
Remote: Academic Study Academic Study
This week’s 5 day Schedule: I = In person, R = Remote
11/16 – Monday – “C” Day – period 7C, 8C -I 7(C) 8(A,C) AP BIOLOGY – (double period Lab)
– period 7C, 8C –R 7(C) 8(A,C) AP BIOLOGY – REMOTE INSTR
11/17 – Tuesday – “D” Day – period 7D,8D – I 7(D) AP BIO ACADEMIC STUDY / 7(B) 8(B,D) AP BIOLOGY
– period 7D,8D – R 7(D) REMOTE INS / 7(B) 8(B,D) AP BIOLOGY REMOTE INSTR
11/18 – Wednesday – “A” Day – period 7A, 8A – I 7(A) AP BIO ACADEMIC STUDY(ASH) / 7(C) 8(A,C) AP BIOLOGY
–period 7A, 8A -R 7 (A) REMOTE INSTR – ASH / 7(C) 8(A,C) 20-21 REMOTE INSTR
11/19 – Thursday – “B” Day –period 7B, 8B– I 7(B) 8(B,D) AP BIOLOGY – (double period Lab)
-period 7B, 8B -R 7(B) 8(B,D) AP BIOLOGY – REMOTE INSTR
11/20 – Friday – “C” Day – period 7C, 8C -I 7(C) 8(A,C) AP BIOLOGY – (double period Lab)
– period 7C, 8C –R 7(C) 8(A,C) AP BIOLOGY – REMOTE INSTR
11/16 – Monday – “C” Day – period 7C, 8C -I 7(C) 8(A,C) AP BIOLOGY – (double period Lab)
– period 7C, 8C –R 7(C) 8(A,C) AP BIOLOGY – REMOTE INSTR
The Red Team is Remote today. Please move to the Remote Instruction page.
Period 7 – Class Period
Period 8 – Academic Study Hall – Yes I am giving one today.
1) Amino Acid – Review – bonds – polarity
I mention R – groups from Amino Acids. these are parts of the amino acids that can be polar or non- polar.
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So these molecules are amino acids! They are what the DNA codes for and when you connect these amino acids you get a protein! The R groups are the part of the amino acid that is in green and these can be polar and non- polar! |
2) Polarity
3) attractive forces – That is what keeps the protein in a particular shape.
Using the H-Bonding – Organic Molecule worksheet : Classwork
attractive forces vs covalent bonds
R groups – polar – H – bonding – Hydrophilic
polar – LDF’s – Hydrophobic
Ionic – ( ions attracting) – IONIC
Disulphide bridges – cysteine (sulfur covalent bonds)
“Like dissolves Like” because the intermolecular attractions between molecules are similar.
Hydrophilic (water loving) molecules prefer to ATTRACT molecules that are also like water.
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Water has strong INTER molecular attractions because it is polar. The electron rich oxygen end is negative and the electron deficient end of hydrogen is positive. Water will orientate itself correctly liquid or in the solid phase so that positives (H end) attract the negatives (oxygen).
These are not Bonds!! Bonds are intramolecular forces that are determined by valence electrons filling their outermost energy level. The only molecules that can GET into water must also have positive and negative ends to dissolve in water!
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Water is polar and thus has positive and negative (poles). Other molecules that are polar will also have positive and negative poles that water can attract to and mix into water.
polar glucose ( C6H12O6) molecule glucose dissolved in water
The diagram is illustrating the Hydrogen Bonding between the polar water and polar glucose molecules. H – Bonding, is NOT a bond but an attractive force between polar molecules that have electron deficient hydrogens.
*Notice that the oxygen end of the water molecule is Attracted to the positive end of the Hydrogen that is BONDED to an atom that that has a large attraction for electrons. The Hydrogen must be electron deficient in order for it to be positive. THAT means that is must be bonded to either F,O, or N to create this electron deficient hydrogen.
These three element pull the shared electrons (electrons in the bond) AWAY from the hydrogen ENOUGH to make the Hydrogen positive enough so that it can ATTRACT to electron rich (negative end) of another polar molecule.
The reason elements F,O, or N create electron deficient Hydrogens is because they have the greatest electronegativity (attractions for electrons). Here is a list of electronegativity values for some of the elements of the periodic table.
Hmm. Does this trend follow the atomic radii trend that we looked at last week?? YES!
Notice which elements have the greatest attraction for electrons (electronegativity). F , O, and N!
Also Notice that Hydrogen (2.20) and Carbon (2.55) have electron configurations differences less than .40 and generally any difference in electronegativity less than .40 between 2 elements in a sharing bond (covalent) is considered “equal sharing’ and thus will not create electron rich or electron deficient areas of a molecule. THIS MEANS THAT HYDROGENS THAT ARE BONDED TO CARBON ARE NOT ELECTRON DEFICIENT AND WILL NOT H-BOND!
Molecules that are not polar do not have Electron deficient Hydrogen and thus MUST attract each other by another method – LDF’s or non-polar attractions.
Using the H-Bonding – Organic Molecule worksheet : Classwork
1: Polar molecular atractions – (H – bonds) – HYDROPHILIC
2: Nonpolar attractions – (LDF’s) – HYDROPHOBIC
Demo –
1. – electrostatic streams of water
11/16 – Monday – Homework –
1. Please continue with the front of the worksheet that we ended with in class, Origin of life 3a – amino acids.pdf
worksheet and
a) continue to add carbons (in the carbon backbone) or hydrogens
b) label each amino acid as either polar (hydrophilic) or non-polar (hydrophobic)
water loving water fearing
c) on the back of this same worksheet there is a molecular diagram of a small protein
(polypeptide) that causes discomfort to people who have Celiac Disease.
The HLA genes known to increase susceptibility to celiac disease are called HLA-DQA1 and HLA-DQB1. These genes provide directions for making proteins used by the immune system. They belong to a family of genes called the human leukocyte antigen (HLA) complex, which helps the immune system distinguish between proteins that belong in the body from those made by foreign invaders such as viruses and bacteria. The proteins made by these 2 genes attach to each other to form bigger proteins called heterodimers, which attach to proteins outside cells and help the body decide if they are foreign.[2] The heterodimers respond differently depending on the versions (alleles) of the HLA-DQA1 and HLA-DQB1 genes a person has.
The bottom line is that people who are more susceptible to having celiac disease have genes (code in the DNA that codes for specific amino acids) that make proteins (polypeptides) that help the bodies immune system (white blood cells) determine if the protein structures coming off cells surface belong to us or are viruses or bacteria. Our immune system works by recognizing proteins that are similar or dissimilar.
Remember when we talked about blood types? If you are type B blood you have a certain protein on top of your blood cell that makes it a B type. If you give type B blood to a person who is type A, that person with type A will have its immune system attack that blood and cause coagulation or clotting (due to antibodies which are also proteins)in the blood stream to immobilize the foreign invader. This leads to certain death to the individual.
Okay so celiac disease is due to proteins being made that make white blood cells incorrectly recognize GLUTEN as a foreign invader in the stomach. Gluten is protein found in many grains like wheat that help give it structure and this is sticky. Gluten because it sticks to the intestinal lining of the gut will cause OUR OWN WHITE BLOOD CELLS TO ATTACK OUR OWN CELLS IN OUR digestive system. When our own body attacks our own cells it is called an autoimmune disease.
Polypeptides are long chain proteins made of amino acids bonding together in a certain way.
Please watch the video below and then please do the following on the GLUTEN diagram:
1) Please label all carbons and add Hydrogen as you did on the first side
2) Identify the peptide bonds
3) identify the amino acids in this polypeptide.
You will need the from side of your worksheet to help.
4) Draw the correct water molecules that were produced in making this polypeptide (amino acids boding to each other).
5) Complete form below!
The bonding between amino acids is is called dehydration synthesis or condensation and it creates a peptide bond and water!
Complete the form below based on all of this above:
End of Monday..
11/17 – Tuesday – “D” Day – period 7D,8D – I 7(D) AP BIO ACADEMIC STUDY / 7(B) 8(B,D) AP BIOLOGY
– period 7D,8D – R 7(D) REMOTE INS / 7(B) 8(B,D) AP BIOLOGY REMOTE INSTR
The Loud team is remote today. Please move to the Remote Page.
Period 7:
1) attractive forces – That is what keeps the protein in a particular shape.
Using the H-Bonding – Organic Molecule worksheet : Classwork
attractive forces vs covalent bonds
R groups – polar – H – bonding – Hydrophilic
polar – LDF’s – Hydrophobic
Ionic – ( ions attracting) – IONIC
Disulphide bridges – cysteine (sulfur covalent bonds)
Period 8:
4: Protein Lab Activity – linking the amino acids in peptide bonds
A) complete primary protein structure with R groups
B) Label the amino acid using abbreviation from worksheet.
C) Highlight the hydrophobic R groups.
Today’s lesson:
11/17 – Tuesday – “D” Day Homework –
1. Read the entire section from the reading link below, and using the information from the video that helped you with the Amino Acids worksheet 1718-New.pdf complete the form below.
2. View the protein folding video:
3. Complete the Form:
End of Tuesday..
11/18 – Wednesday – “A” Day – period 7A, 8A – I 7(A) AP BIO ACADEMIC STUDY(ASH) / 7(C) 8(A,C) AP BIOLOGY
–period 7A, 8A -R 7 (A) REMOTE INSTR – ASH / 7(C) 8(A,C) 20-21 REMOTE INS
The Red Team is Remote Today. Please move to the remote instruction page.
Period 7
* 3 ways that amino acids can attract each other:
A) polar attractions (H – bonds)
B) Nonpolar attractions (LDF’s)
C) Ionic attractions (some R groups have charges and thus a negative charge R group from one amino
acid will attract positive charged R groups from another amino acids.)
*1 way they bond between R groups
A) Disulfide bridges
Video 1:
Video 2:
Period 8:
Start the Protein Building activity for the Blue /remote team:
11/18 – Wednesday – “A” Day – Homework –
Complete the Form below using the following resources:
1: Use the form below and the text book to answer the questions 1 – 10:
2: Then watch the complete video below and then complete question 11 and 12 :
YOU WILL ONLY HAVE ONE RESPONSE FOR THIS FORM and it will not be on auto-reply.
Secret of Photo 51:
Text page 86, concept 5.5 :
End of Wednesday..
11/19 – Thursday – “B” Day –period 7B, 8B– I 7(B) 8(B,D) AP BIOLOGY – (double period Lab)
-period 7B, 8B -R 7(B) 8(B,D) AP BIOLOGY – REMOTE INSTR
The Blue team is remote today. Please move to the remote instruction page.
Period 7,8:
1. Complete the protein folding activity.
11/19 – Thursday – “B” Day Homework:
1. Make another submission to last nights form ONCE you get a graded email.
You have one more submission.
2. Please read my edits to your Lab 2 and make the changes. I will regrade.
End of Thursday..
11/20 – Friday – “C” Day – period 7C, 8C -I 7(C) 8(A,C) AP BIOLOGY – (double period Lab)
– period 7C, 8C –R 7(C) 8(A,C) AP BIOLOGY – REMOTE INSTR
The RED team is remote today. Please move to the Remote Instruction page.
Period 7,8:
1. Protein Folding Activity –
a) Complete the primary chain,
b) add R groups,
c) identify hydrophilic and hydrophobic R groups
d) identify the amino acids in the primary chain
e) Fold the protein
11/20 – Friday – “C” Day Homework –
1. Please make one more submission to Wednesday’s form – DNA and its discovery
2. Please complete the Form below with your textbook. I expect complete answers that are fully
developed.
End of Friday and week 1 of quarter 2!