Stay ConnectedThe APsolute RecAP: Biology Edition, written and hosted by Melanie Kingett, will be your guide to scoring the five! The APsolute RecAP is designed to maximize your understanding and minimize your need for memorization. Each episode will review content, skills and test taking tips to help you succeed in May.
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 – The APsolute RecAP, LLC. All rights reserved.)
Copyright: © 2023 The APsolute RecAP, LLC
Episode 35 reviews graphing essentials and the relationship to energy. It's important to use the most appropriate graph for the data set (1:10). Do you remember DRY MIX TAILS? (1:50) Energy can be transferred and transformed, but not created or destroyed. (3:00) Imagine yourself walking along an energy graph, over the activation energy hill, and then either up to a plateau for endergonic or down to a valley for exergonic reactions (4:20). Match each graph with a reaction you are already familiar with.
The Question of the Day asks (6:21) “What does ADP stand for?”
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Episode 34 finds the similarities and differences between chloroplasts and mitochondria. The endosymbiosis theory states that these energy transducers were once independent prokaryotes (1:38). Chloroplasts capture light energy in photosynthesis (2:20). Mitochondria break down sugars in cellular respiration (4:00). There are many commonalities between each organelle’s structure and function.
The Question of the Day asks (6:35) “What are the alternate names for the Krebs cycle”?
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Episode 33 recAPs genetic engineering techniques of biotechnology. Electrophoresis separates molecular fragments according to size and charge visually (1:00). PCR amplifies DNA fragments, making thousands of copies from even the smallest sample (2:35). Bacterial transformation introduces foreign DNA into bacterial cells (4:00). DNA sequencing is a part of biotechnology, but typically not working with an entire genome at one time (6:15).
The Question of the Day asks (8:08) “Which cells in the human body do NOT contain nuclear DNA?
Thank you for listening to The APsolute RecAP: Biology Edition!
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It’s the battle of the nucleic acids in Episode 32! DNA may have all the information, but RNA does all the work. DNA and RNA are made of nucleotide monomers (1:05). DNA and RNA nucleotides differ in their pentose sugar (1:55) and pyrimidine base ( 3:00). DNA forms an antiparallel double helix (3:50) compared to the single strand RNA (5:05), forming mRNA, rRNA and tRNA.
The Question of the Day asks (6:44) “Nucleic acids are one of two biological molecules that contain the element nitrogen. What is the other?”
Thank you for listening to The APsolute RecAP: Biology Edition!
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You hear mutations - but we hear variation! Mutations have several causes and can be positive, neutral or negative to the phenotype. Grab a recap of the Central Dogma before diving in (1:40). Distinguish between point mutations and frameshift mutations (2:50). Mutations have a strong correlation to evolution(3:40). Prokaryotes have been around a long time, with many reproductive techniques (5:08). Genotypic changes are also the result of errors in cell division, as with non-disjunction (5:40).
The Question of the Day asks (6:25) “What metal atom is bound to a heme group in hemoglobin?”
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
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“Water water everywhere, nor any drop to drink.” Episode 30 reviews the passive transport of water and the calculation of water potential - with many water sound effects! Hypertonic solutions have a greater concentration of solutes than a hypotonic solution (1:30). It does not end well for a paramecium placed in freshwater (2:15). Water potential allows us to predict the movement of water (4:00) and is measured in bars. Don’t memorize any equations! (5:20)
The Question of the Day asks (6:56) “What is the process called when a cell membrane pulls away from a plant cell wall after being placed in a hypertonic solution?”
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
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Melanie wants you to be prepared and calm on May 18th! Episode 29 recAPs test taking tips appropriate to the digital platform. You need to practice timed FRQs in the same location and with the same resources as exam day (1:06). Stop studying and go to bed! (1:45) You can either type or hand write your responses, but don’t work in the redzone (2:40). Keep scrap paper, a calculator and minimal resources nearby during the test (3:50) There won’t be much time to look up answers. Make sure you address the task verbs in the questions with full sentences (5:40). Technical catastrophe on test day - reach out to the CB for a re-test (6:00).
The Question of the Day asks (6:47) T/F - You can complete the two FRQs in any order.
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
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Episode 28 recAPs some of the great scientific minds of history. Atoms are the building blocks of matter, with work by greats such as Dalton, Rutherford, and Bohr (1:08). Gregor Mendel is now renowned as the father of heredity, but began as a pea farmer (2:30). DNA was identified as the molecule of heredity by comparing chemical properties through experiments by Griffith, Avery, Hershey and Chase (3:28). You likely remember Watson and Crick’s double helix model, but what about Franklin and Chargaff? (4:30). No episode on scientists is complete without mentioning Charles Darwin and the theory of evolution by natural selection (5:37).
The Question of the Day asks (7:03) “What mainland South American country is closest to the Galapagos Islands? ”
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
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Episode 27 recaps the connection between the coronavirus and the content on the AP Bio exam. Viruses are nonliving agents (1:05) with a hijacking infection strategy. Coronaviruses are named for their club-like proteins sticking out from the surface (2:45). The viral RNA genome is translated by host cell ribosomes (4:20). Biotechnology, like PCR, is used to test for viral presence in test swabs (5:20). Viral genomes are able to evolve over time, with high mutation rates (5:55).
The Question of the Day asks (7:12) “What do we call the branch of medicine that studies the distribution and control of disease?”
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
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Episode 26 is our first listener’s choice episode! The first recAP is about membrane proteins - both structure and function (1:18). Second, a biotechnology refresher with discussion of bacterial transformation, electrophoresis, and PCR (3:10). Lastly, Melanie reviews each scientist’s contribution to the discovery of DNA as the hereditary molecule (5:51).
The Question of the Day asks (7:40) “What percentage of DNA is made of nitrogen?”
Thank you for listening to The APsolute RecAP: Biology Edition!
(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)
Website:
EMAIL:
TheAPsoluteRecAP@gmail.com
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