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Review for the first test in AP Biology, covering topics such as carbon bonding, common elements in living organisms, properties of water, polarities, types of bonds, pH scale, buffers, macromolecules, protein structure, and monomers.
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AP Bio 1st Test Review Sept 2019 Chapters 2-5
What is the maximum number of bonds that a carbon atom usually makes?
Name the 6 most common elements found in living organisms. Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous & Sulfur (CHNOPS)
Describe 4 properties of water that make it important to living creatures. Include an example of each property
Describe 4 properties of water that make it important to living creatures. Include an example of each property
What is the difference between cohesion and adhesion? Cohesion is the attraction between water molecules, adhesion is the attraction between a water molecule and another molecule.
Acid rain has a pH of 3.6. How much more acidic is acid rain than rainwater (pH of 5.6)?
5. Acid rain has a pH of 3.6. How much more acidic is acid rain than rainwater? The scale is logrithmic. Each change in pH is the power of 10. PH of rainwater is 5.6 – 3.6 of acid rain is a pH of 2. So, acid rain is 100 (102) times more acidic than rain water.
What is a buffer? A solution of weak acids/bases that do not change pH when an acid or base is introduced into the solution.
Which element is of primary importance to organic chemistry?
Which element is of primary importance to organic chemistry? Carbon
Define the term functional group. A group of atoms responsible for the characteristic reactions of a compound.
What is a monomer and list a monomer of each of the 4 macromolecules.
What is a monomer and list a monomer of each of the 4 macromolecules.
Identify two things that can denature a protein? Temperature, pH, salt, physical agitation
Name the chemical reaction that can join 2 amino acids and name the chemical reaction that can break peptide bonds.
Name the chemical reaction that can join 2 amino acids and name the chemical reaction that can break peptide bonds. Dehydration Synthesis and Hydrolysis
Which type of organic macromolecule has the same ratio of hydrogen and oxygen molecules as water?
Which type of organic macromolecule has the same ratio of hydrogen and oxygen molecules as water?
What is the difference between saturated and unsaturated lipids?
What is the difference between saturated and unsaturated lipids?
Tuesday’s exam will include a multiple choice section and a short answer section. Bubble in an answer for each question. Guess, leave no blanks. The short answer section will require calculations, so bring a calculator and write in complete sentences!
Name the reaction that is occurring in the diagram below. Dehydration/condensation synthesis
Which polymer of glucose is made by plants and which polymer of glucose is made by animals?
Which polymer of glucose is made by plants and which polymer of glucose is made by animals? Animals make glycogen and plants make cellulose and starch.
Describe the differences between the 4 levels of protein structure. A __________________helps polypeptides fold correctly. Heat and low pH can ___________________ a protein. Sickle Cell Disease results from a mutation in which level of protein structure?
Describe the differences between the 4 levels of protein structure. A chaperoninhelps polypeptides fold correctly. Heat and low pH can denature a protein. Sickle Cell Disease results from a mutation in which level of protein structure? Primary Structure
_______________ & ___________________ are examples of secondary protein structures.
Alpha Helix& Beta Sheetsare examples of secondary protein structures.
10.6 Which type of protein structure includes at least 2 proteins? Which protein structure is held together primarily by R group interactions?
Which type of protein structure includes at least 2 proteins? QuarternaryWhich protein structure is held together primarily by R-group interactions? Tertiary
Identify the monomers below: Nucleotide