Welcome!
Be unique!
We all “Slept” and “Played Video Games”
Welcome Scientists!
Hopefully you had a great summer…. or at least caught up on your sleep
Agenda
Mr. Weisbrot
Bojangles University in Liechtenstein
Majored in Alchemy
Class of 2014, Go Unicorns!
Live on a sailboat
Mr. Weisbrot
Mr. Weisbrot
Dickinson College
Rutgers University
NJ Medical School
Teachers College, Columbia
Dickinson College
Rutgers University
NJ Medical School
Teachers College, Columbia
Parents Helped
Loan, now paid back
Worked during the day
Lived at home
Took out a loan
Still paying back
Mr. Weisbrot
Dickinson College
Rutgers University
NJ Medical School
Teachers College, Columbia
2012 - 2016
2016 - Present
Science Research, Drawing, IB Bio,
Engineering, Aeronautical Engineering
Bingo Rules
Course Info
What do you already know about taking IB classes
as a junior and senior at Curtis?
What do you already know about the IB Biology course?
What questions do you have?
Course Info
Brief Overview – Senior Year
9/8 HW: Missing Lab Safety
Target: WALT explore the structure, assessments, and rigor of the IB program and reflect on what will be expected of us..
Do Now: This is a two-year journey. Today you will investigate what IB Biology looks like and have a chance to discuss and reflect.
Reflection: Quick write in your notebook below your Target
9/9 HW: Cornell Notes for A1.1 Water
Finish 1.2 and 1.3
Target: WALT organize the first chapter into Cornell Notes by moving section by section, identifying key terms.
Do Now: What makes water important for living things?
A1.1 Water
1.1 Water as the medium for life
A1.1 Water
1.1 Water as the medium for life
A1.1 Water
1.1 Water as the medium for life
A1.1 Water
1.1 Water as the medium for life
A1.1 Water
1.1 Water as the medium for life
A1.1 Water
1.1 Water as the medium for life
Membrane
Solutes
Chemical reactions
A1.1 Water
1.1 Water as the medium for life
1.2 Hydrogen bonds as a consequence of the polar covalent bonds within water molecules
Membrane
Solutes
Chemical reactions
A1.1 Water
1.1 Water as the medium for life
1.2 Hydrogen bonds as a consequence of the polar covalent bonds within water molecules
Membrane
Solutes
Chemical reactions
1.2 Hydrogen bonds as a consequence of the polar covalent bonds within water molecules
1.2 Hydrogen bonds as a consequence of the polar covalent bonds within water molecules
Polar covalent bonds
9/10 HW: Cornell Notes Water
SL 1.5 - 1.6
HL 1.5 - 1.8
Short Water Quiz Friday
(Before copying the target, leave space in your notebook (2-3 pages) to continue your Cornell Notes)
Target: WALT identify key terms that IB examiners expect in responses and use our notes to answer IB-style questions.
Do Now: Looking back at your notes for 1.3, discuss with your neighbor which key terms you identified. Maybe even quiz each other on their meanings.
1.3 Cohesion of water molecules due to hydrogen bonding and consequences for organisms
Energy
Cohesion
Tension
Xylem
Surface tension
Habitat
1.4 Adhesion of water to materials that are polar or charged and impacts for organisms
9/12 HW: Preview A1.2 Nucleic Acids
Target: WALT review each understand in groups and as a class by identify key terms and then taking a short quiz.
Do Now: Use your notes and the brainpower of your group to list key terms for your table’s understanding on the board.
Be prepared to give a short account of your understanding to the class.
9/12 HW: HL – Begin A1.2 Nucleic Acids
Consider Where To Write Notes
Target: WALT review each understand in groups and as a class by identify key terms and then taking a short quiz.
Do Now: Use your notes and the brainpower of your group to list key terms for your table’s understanding on the board.
Be prepared to give a short account of your understanding to the class.
Command Terms
State: Give a specific name, value or other brief answer without explanation or calculation.
Outline: Give a brief account or summary
Describe: Give detailed account or picture of a situation, event, pattern or process.
7
9/15 HW: Begin A1.2 Nucleic Acids
A1.2.1 - A1.2.2 – Won’t check until Thurs.
Consider Where To Write Notes
Target: WALT describe DNA as the universal genetic material, identify the 3 parts of a nucleotide, and explain how they link together by building a model.
Do Now: What do you already know about DNA/RNA?
Modeling Activity
Hydrogen 1 bond
Hydrogen 1 bond
Carbon 4 bonds
Hydrogen 1 bond
Carbon 4 bonds
Oxygen 2 bonds
Hydrogen 1 bond
Carbon 4 bonds
Oxygen 2 bonds
Nitrogen 3 bonds
Hydrogen 1 bond
Carbon 4 bonds
Oxygen 2 bonds
Nitrogen 3 bonds
Phosphorous 3 bonds
Nucleotide - Basic building block of nucleic acids such as DNA and RNA
Let’s make the sugar found in DNA with our modeling kits, Deoxyribose
Let’s make the sugar found in DNA with our modeling kits, Deoxyribose
Let’s make the sugar found in DNA with our modeling kits, Deoxyribose
Let’s make the phosphate group by attaching a yellow phosphorus
Let’s make the thymine as our base
9/16 HW: Cornell Notes
SL: A1.2.3 - A1.2.5 – Won’t check until Thurs.
HL: A1.2.3 - A1.2.8 – Won’t check until Thurs.
Target: WALT describe the key features of nucleotides and how they connect to form DNA, identify differences between DNA and RNA, and review Friday’s quiz.
Do Now:
Let’s make the sugar found in DNA with our modeling kits, Deoxyribose
Hydrogens on carbon not shown
Do Now:
H2O
H2O
Join two nucleotides together
Quiz Return & Discussion
Cohesion
Adhesion
High Specific Heat
Solvent
Surface tension
Buoyancy
Capillary action
Cohesion - binding of water molecules
Adhesion - binding of water to surfaces
High Specific Heat - temperature is more stable
Solvent - universal solvent, polar molecules
Surface tension - many hydrogen bonds support
Buoyancy - objects less dense than water float
Capillary action - cohesion and adhesion move water molecules
Cohesion - binding of water molecules - habitat on water
Adhesion - binding of water to surfaces - transport in xylem
High Specific Heat - temperature is more stable -
Solvent - universal solvent, polar molecules
Surface tension - many hydrogen bonds support
Buoyancy - objects less dense than water float
Capillary action - cohesion and adhesion move water molecules
9/17 HW: Cornell Notes
SL: A1.2.6 - A1.2.10 – Won’t check until Thurs.
HL: A1.2.9 - A1.2.15 – Won’t check until Fri.
Target: WALT take brief notes on the remaining SL understandings and then compare DNA and RNA.
Do Now: If DNA is the ‘recipe book,’ what role might RNA play?
DNA
RNA
Both
9/18 HW: Quiz tomorrow / Cornell Notes Due
Target: WALT explore some HL concepts such as the Hershey and Chase Experiment and Chargaff’s Rules through discussion.
Do Now: Yesterday we discussed how nucleotides are attached, what additional HL information can we apply?
Hint
Hershey Chase Experiment 1952
Class Discussion
Chargaff’s Data 1950
Mini Activity
Chargaff’s Data 1950
Mini Activity
9/19 HW: Review A1.1 and A1.2 Test Friday
Target: WALT discuss each understand in groups and as a class by identify key terms and then taking a short quiz.
Do Now: Use your notes and the brainpower of your group to list key terms for your table’s understanding on the board. Be prepared to give a short account of your understanding to the class.
SL Agenda
9/19 HW: Review A1.1 and A1.2 Test Friday
Target: WALT discuss each understand in groups and as a class by identify key terms and then taking a short quiz.
Do Now: Use your notes and the brainpower of your group to list key terms for your table’s understanding on the board. Be prepared to give a short account of your understanding to the class.
HL Agenda
SL Agenda
Practice Worksheet Answers
3. D
4. D
5. C
7. D
8. A
9. C
10. D
9/22 HW: A1.1 and A1.2 Test Friday
Kognity Practice Questions
Target: WALT work collaboratively at four different stations to solve data based questions on our current unit.
Do Now: Class share out – what would productive group work look like, sound like, and feel like?
9/25 HW: A1.1 and A1.2 Test Friday
Kognity Practice Questions
Target: WALT work collaboratively at our tables to share out solutions to tuesday’s questions.
Do Now: As we approach tomorrow’s unit test, how can you study in preparation for it? List several ideas
Study Resources
Study Resources
Study Resources
Study Resources
Study Resources
Discuss your table’s answers to Tuesday’s questions and be prepared to share out your answers
1a.
1b.
2a.
2b.
3a.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b.
2a.
2b.
3a.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a.
2b.
3a.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a. As the height above ground increases, the xylem pressure becomes more negative.
2b.
3a.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a. As the height above ground increases, the xylem pressure becomes more negative.
2b. There is a column of water in the xylem that is under tension. The higher up the tree, the larger the column, and the more tension it is under.
3a.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a. As the height above ground increases, the xylem pressure becomes more negative.
2b. There is a column of water in the xylem that is under tension. The higher up the tree, the larger the column, and the more tension it is under.
3a. The midday pressured are consistently more negative than the predawn pressures. Both have a negative correlation.
3b.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a. As the height above ground increases, the xylem pressure becomes more negative.
2b. There is a column of water in the xylem that is under tension. The higher up the tree, the larger the column, and the more tension it is under.
3a. The midday pressured are consistently more negative than the predawn pressures. Both have a negative correlation.
3b. This is because more transpiration is occurring more during the day, more stomata are open and more water is moving up through the trees.
4.
1a. The independent variable is chosen and manipulated by the researcher. Also known as the manipulated variable.
1b. The dependent variable is what is measured by the researcher, it is expected to change in response to the independent variable. Also known as the responding variable.
2a. As the height above ground increases, the xylem pressure becomes more negative.
2b. There is a column of water in the xylem that is under tension. The higher up the tree, the larger the column, and the more tension it is under.
3a. The midday pressured are consistently more negative than the predawn pressures. Both have a negative correlation.
3b. This is because more transpiration is occurring more during the day, more stomata are open and more water is moving up through the trees.
4. 128 m
1. The amine group (NH2) is in a different position than on guanine.
Adenine does not have an oxygen.
1. The amine group (NH2) is in a different position than on guanine.
Adenine does not have an oxygen.
2. A condensation reaction occurs between the deoxyribose and the bases. This releases a water molecule.
1. The amine group (NH2) is in a different position than on guanine.
Adenine does not have an oxygen.
2. A condensation reaction occurs between the deoxyribose and the bases. This releases a water molecule.
3. Both contain two rings.
Both have an amine group on the larger ring.
Both are purines.
1. The amine group (NH2) is in a different position than on guanine.
Adenine does not have an oxygen.
2. A condensation reaction occurs between the deoxyribose and the bases. This releases a water molecule.
3. Both contain two rings.
Both have an amine group on the larger ring.
Both are purines.
4. (Compare = similarities & differences)
5. Bases in DNA store genetic information as the genome
The 4 unique bases create triplets that code for amino acids
During replication the bases must pair according to complementary base pairing
Purines pair with pyrimidines
Bases in DNA get transcribed into RNA and then into Amino acids
1. ( 57,227,415 ➗ 3,080,000,000 ) x 100 = 1.85 %
1. ( 57,227,415 ➗ 3,080,000,000 ) x 100 = 1.85 %
2. 7.3% Guanine, 7.3% Cytosine = 85.4 % Adenine & Thymine
42.7 % Adenine, 42.7% Thymine
1. ( 57,227,415 ➗ 3,080,000,000 ) x 100 = 1.85 %
2. 7.3% Guanine, 7.3% Cytosine = 85.4 % Adenine & Thymine
42.7 % Adenine, 42.7% Thymine
3. Disadvantage: instability, an error in the single strand cannot be corrected by
the second strand
Advantage: easily mutate, which helps the virus evolve to evade the host’s
defenses. More easily insert DNA into host genome.
1. ( 57,227,415 ➗ 3,080,000,000 ) x 100 = 1.85 %
2. 7.3% Guanine, 7.3% Cytosine = 85.4 % Adenine & Thymine
42.7 % Adenine, 42.7% Thymine
3. Disadvantage: instability, an error in the single strand cannot be corrected by
the second strand
Advantage: easily mutate, which helps the virus evolve to evade the host’s
defenses. More easily insert DNA into host genome.
4. Plasmid: 1,440 base pairs
Chromosome: 3,155,000 base pairs
1.44 : 3,155
1: 2,190
1. ( 57,227,415 ➗ 3,080,000,000 ) x 100 = 1.85 %
2. 7.3% Guanine, 7.3% Cytosine = 85.4 % Adenine & Thymine
42.7 % Adenine, 42.7% Thymine
3. Disadvantage: instability, an error in the single strand cannot be corrected by
the second strand
Advantage: easily mutate, which helps the virus evolve to evade the host’s
defenses. More easily insert DNA into host genome.
4. Plasmid: 1,440 base pairs
Chromosome: 3,155,000 base pairs
1.44 : 3,155
1: 2,190
5. SARS-CoV-2 genome is about 30 kb (30,000 base pairs)