AP Homework Assignments

Homework due 4/15/fifteen

posted Apr fourteen, 2015, 6:23 PM past Ruth Wang

Delight answer the following questions on a split sheet of paper and bring to class tomorrow.

  1. What is the bones structural difference between purines and pyrimidines? Which bases vest to each group?

You can read the following links to help you answer the question #two:

    3.If nucleic acrid had been a compatible polymer in which each base was repeated every four nucleotides (due east.g., ever a consistent pattern like ATGCATGCATGCATGC...etc), could DNA all the same take been the genetic textile? Why or why non?

4. What did Chargaff's experiment with the bases establish? Did he depict any clues from this information as to the structure of Deoxyribonucleic acid?

5. Let's say another experiment was done. The total amount of Dna in all diploid cells of a given species was measured. All body cells of this species had the aforementioned amount of DNA, regardless if it came from a liver, muscle, encephalon, etc. prison cell. However, only half of that amount was found in the sperm and eggs of that species. How does this fact support the thought that genes could exist made out of DNA?

Hershey and Chase Article Dissection

posted Apr 11, 2015, 5:49 PM by Ruth Wang

Delight open the attached document and follow the instructions earlier Monday. Delight NOTE! THIS ARTICLE IS A HEAVY Certificate, please allow at least 3-v hours for reading it and completing the consignment.

See you lot Monday!

-Ms. Wang

Groundwork:

  1. Read the following articles for some background before yous read the paper.
  • · http://biology.clc.uc.edu/courses/bio104/dna.htm (Just read the background history section)
  • · https://paulingblog.wordpress.com/2009/08/18/the-hershey-hunt-blender-experiments/

two. Here's the link to the original paper if you lost your hard copy:

- http://jgp.rupress.org/content/36/1/39.full.pdf

Helpful vocabulary hints:

  • - Phage/bacteriophage is a type of VIRUS (even though the name "bacteria" is in it, it is Not a leaner)—recall a virus is Non Live, just a bundle of DNA with a protein glaze
  • - Adsorb : means to stick to; adsorption of something to something else means how much they "stick" or adhere to it
  • - Radioactivity is caused by unstable atoms (isotopes) breaking down into smaller pieces. This tin exist detected and measured with scientific machines/instruments, such as a Geiger counter. More data [optional] here: http://www.remm.nlm.gov/civilian.htm
  • - Fractionation and centrifugation are 2 lab procedures commonly used in biology. Basically, whole cells are mashed upwards using a "blender" car and then the resulting liquid (called the supernatant ) is spun actually fast on a motorcar called a centrifuge. The heavy mashed up stuff (the parts of the cell that are the most dumbo) will "settle" down to the lesser of the test tube faster; thus nosotros can dissever out the different parts of the prison cell using this technique. The solid stuff that is at the lesser of the test tube is called the sediment or precipitate .
  • o Please watch these videos for more information: https://world wide web.youtube.com/lookout?five=SjaFUJhzY9Q
  • - DNase is an enzyme that breaks down DNA
  • - A "medium" is a term used to describe a solution; for example, "adsorption medium" only ways the liquid that they put the bacteria in and so the phages could "adsorb" (stick) to them
  • - "sensitive" ways vulnerable to; for instance, sensitization of DNA to DNase means that the DNA can be broken down by the DNase.
  • - But the monomers of proteins and nucleic acids are acid-soluble—the polymers are not acid-soluble

three. Helpful website that breaks down each section of the newspaper and all of the figures: (read as a companion aslope the original article). http://www.mun.ca/biology/scarr/4241_mkm_hersheychase.htm

four. Answer the following questions and bring to class on 4/xiii/15

ane. What did the scientists know BEFORE they started the experiment?

2. Why was this work washed? (i.e., what was the full general goal?) What was the main question they wanted to respond?

iii. What was done? (i.e., what was/were the nigh important experimental procedure(s)?) Summarize the experimental procedures in order, in your own words.

4. What was found? (i.east., what was the about of import result(s)?)

5. What does information technology hateful? (i.east., what was the most important decision(south)?)

half-dozen. What additional questions remain? (i.e., what two further issues of significance would you like to pursue if yous were working at the fourth dimension this article was published?)

7. What are two strengths and 2 weaknesses of this article?

Reading comprehension questions:

8. Why did the scientists utilize radioactive sulfur and phosphorus? (Explain, first, why they used radioactive compounds at all, and then why they chose South and P in particular, instead of, for example, O and Northward.

9. How did the scientists get the viruses to comprise radioactive Southward and P?

10. Which table(southward) bear witness(s) the most important (main) results of the Hershey and Hunt experiment? Explain why.

Homework due eleven:59 Dominicus March 15th

posted Mar 14, 2015, 1:42 PM by Ruth Wang [ updated Mar 15, 2015, 4:43 PM ]

Delight consummate all of the following items Earlier CLASS ON MONDAY.

1. Please consummate this reading about how neurons communicate. (Y'all volition accept to create an account before you lot can admission the reading.) At that place are five sections: one) Resting potential, 2) Action potential, iii) Synaptic Transmission, 4) Signal Summation, and v) Synaptic Plasticity. The starting time three we have covered in depth in course. I expect you lot to by at present know the beginning 3 sections by heart. If y'all don't, please review. Point summation and synaptic plasticity (long-term potentiation) were not covered in class, simply I desire you lot learn this on your own. Please read these parts carefully!!

2. Please sentry this video and complete the notes on page 5 of your bundle (attached to this post) on inhibitory vs. excitatory neurons.

3. Delight watch this video almost Long Term Potentiation (LTP). Start at i:28 and finish the entire video. Please have notes while you watch the video and rewind and replay if you don't get it.

4. Delight take the following quizzes by the end of day Lord's day to examination your noesis on Indicate Summation and Synaptic Plasticity. The links will get active past 7AM Sunday. (Y'all accept to log in to Boundless.com to have them.)

- Point Summation

- Synaptic Plasticity and Long-Term-Potentiation (LTP)

five. Don't forget to consummate the Sensory and Motor Systems Misconceptions bundle to plough in at the first of grade on Mon.

6. DON'T FORGET! FULL LENGTH AP EXAM ON Thursday, MARCH xix. PLEASE ATTEND FIRST LUNCH THAT Twenty-four hour period. Yous SHOULD Be REVIEWING ALL PREVIOUS AND Electric current UNITS (Development, Ecology, BIOCHEMISTRY, CELLS, ENZYMES AND METABOLISM, AND PLANT AND Animal STRUCTURE AND Office). Please seek help ASAP if yous think you need information technology!

Please accept this quiz before midnight tonight.

posted Mar 12, 2015, four:23 PM by Ruth Wang [ updated Mar 12, 2015, 4:29 PM ]

Please click on this quiz as homework earlier midnight. The link volition shut at midnight tonight.

PLEASE DO NOT GOOGLE ANY ANSWERS TO THE QUESTIONS. I will recognize plagiarized answers. You may utilise your text and notes to help you, but no plagiarism allowed.

Please note: a right respond must be detailed--all of these questions require at least v sentences.

HW due eleven/eighteen Tuesday during Rattler Period

posted November 17, 2014, vii:44 AM by Ruth Wang

Three things are due by tomorrow, Rattler Flow:

1) If you didn't finish the classwork today, you lot must finish everything at home.

2) In addition to the handout given out in class, delight re-watch Video #2 from course today and write downwardly every time y'all notice Jail cell SIGNALING occur. You are going to explain the video using the scientific terms you lot learned in Video #3. This will be turned in on a separate sheet of paper. Y'all can use the following picture to assistance guide you: There are a lot of random terms, but focus on stuff you exercise know. Where is the G-protein receptor? Where is the alpha subunit? Where does the alpha subunit get subsequently it gets activated?


3) Please besides read Chapter eleven and exercise Affiliate xi notes. The chapter should be an easy read later watching the videos.

The other links are too posted below for your convenience:

Homework Due Thursday nine/11/xiv

posted Sep 9, 2014, viii:01 PM by Ruth Wang [ updated Sep 9, 2014, 8:02 PM ]

This homework is due 6th period, Th the 11th.

This is based on the video "What Darwin Never Knew". If you did not lookout man it in grade, you tin watch it on Youtube at the following link: http://www.youtube.com/spotter?5=NOHzY1fuOz4

ane) List at to the lowest degree v pieces of bear witness that Darwin claimed supported his idea that species change. Brand certain, for each case, you listing exactly how the example reasonably supports the claim.

2) Pretend you are Charles Darwin debuting your revolutionary idea for the get-go fourth dimension, in an era where your views were deemed ridiculous, blasphemous, or even atrocious. Write a 5-paragraph letter (at least 25 sentences) to the public, explaining the evidence (you can use the ones you listed for #i) and why information technology supports your claim. Your paper must includeat  least three unlike opposing viewpoints, and containthree rebuttals to those opposing views.

3) Darwin claimed that the fact that human embryos had structures that looked similar "gills" proves that humans must be descended from fish. Is this conclusion logical or illogical? Persuasive or not persuasive? What other evidence might you need in addition to simply this piece of prove to be able to make a true scientific decision? Write at least 8 sentences for this part of the homework.

To aid you lot, read this commodity to get started thinking about the process of scientific investigation. http://undsci.berkeley.edu/commodity/0_0_0/howscienceworks_02

Due to the lateness of my posting, this volition not be due until Th, 9/11. Nonetheless, I encourage yous to begin to call back about these ideas and pay attention during course tomorrow because we will be discussing this.

Homework over the Weekend (due Monday 9/8)

posted Sep 5, 2014, v:41 PM by Ruth Wang

Please read Chapter 25 of Pearson and Campbell (the handout I gave out on Th). Answer questions 1-x on pages 508 and 509 on a separate sheet of paper. So far I have the work from the post-obit people (if your name is on the list below, you do not have homework for AP bio this weekend!):

Kaylisa

Carson

Promise you lot all take a smashing weekend. See you on Monday!

Ms. Wang

8/25 - Syllabus Quiz

posted Aug 25, 2014, 8:21 PM past Ruth Wang [ updated Mar 17, 2015, 5:14 PM ]

Please visit this site to take a brusk quiz. (You lot must copy and paste the link into your browser.)

Due to my filibuster in posting this, it will not be due until Midweek, 8/27 at ane:xxx PM.