AP Biology 2024 - FRQ Question 2 SOLVED!
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- เผยแพร่เมื่อ 19 ต.ค. 2024
- In this video, I provide a comprehensive solution for FRQ Question 2 from the 2024 AP Biology Exam. I go through the question step by step, breaking down the prompts and discussing the relevant concepts and information needed to formulate a well-rounded response. This video is a valuable resource for AP Biology students who want to review and gain insights into tackling FRQ questions effectively. By following along with the solution provided, students can enhance their understanding of the subject matter and improve their performance on the upcoming exam. Music by: bensound.com
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I may be wrong, but I believe for the graph it was 20 squares for the x-axis and 30 for the y-axis
i believe that is correct
That's what I've heard from others.
So if for the graph I completely forgot how to make a key for it and I instead wrote oxygen and ATP under each respective bar that they aligned with, is there any world in which that could be accepted? I forgot I can just partially shade in one of em cause I was just thinking about making the error bars still visible so I had no clue what to do
I think you could do the graph that way as long as each set had all 3 temps represented. It’s a stretch but you might get credit.
@@mrchipman well I certainly take the stretched maybe than a for sure no. I did add the specific temps below so, it’s a possibility I suppose
That's exactly what I did
For (di), I wrote there will be no ATP produced and for (dii), I justified it by saying H+ protons would be unable to go down the ATP Synthase and ADP and inorganiz phosphate would not be converted to ATP. Would this get me any points? Thank you.
Maybe...but it asked the affect on the proton gradient, not on ATP production. I hope they will give you the point!
@@mrchipman do i have to get the predict right to get the justify right
For my graph, I was off by 0.5 on a single bar (I put 21.5 instead of 21.07), but everything else was correct. My scale was also at 1, so I was only off by less than a square on my graph. I did everything else correctly though. Will this lose me a point on the graph, or not?
Sadly it probably will. But you should be fine on the other 2 points for the graph.
For the graph, could you have done a stacked bar chart or did it have to be separate bars and I didn’t shade the bars but I did label the Y axis relative to the bars if that makes sense
I'm pretty sure it would have to be separate bars. They may accept it if the graph makes sense.
For the predict question, I said something how it would have a negative affect on the Proton Gradient, than I explained everything in detail like what you said in the justify part. Would I get the point for the predict question or was I too vague in my prediction. I thought my explaining would have to go to the justify part
That may work that it may not be specific enough.
would i still be granted the point if i didnt have time to write the units for y axis nmol/mg/min. I did the graph last second and was able to get every single bar down, error bars, x axis labels and a key too
You will get some of the graph points but will miss the point that includes the units.
The graph was 20 boxes across and 30 high I believe
Good info! I feel like that would be pretty easy to graph.
@@mrchipmanwould a dual y-axis still get points, even if the one y-axis graph is easier to read?
@@mrchipmanI thought it was
I think a dual Y would work for this one honestly. We shall see.
God I thought that they were trying to trick you and get you to multiply by 100 and I only multiplied by 10
I may be wrong! And definitely an odd question that has nothing to do with the class content.
I thought he said you needed to do 16.5 x 10 (nmol) x 10 (min) =1650
I know I got it wrong in that case since I only multiplied by 10 as well and got 165, they got me too 😫
i think i might've lost 2 points, i explained that protons will build up because they have no atp synthase to diffuse through, but i accidentally mixed up the matrix and the ims, and i think i said that protons will build up in the matrix. maybe they'll give it to me because my explanation made it more obvious that it was a mixup? hopefully..
Hopefully they will look over it? We can hope!
@@mrchipman how likely do you think that is? i'm not sure how strict the ap readers usually are
@notjackk hard to say; once they get their rubric they stick to it and are trained to count it wrong if the statement is false. It’s not likely, but there may be hope.
It’s just one point. You’ll be fine.
@@mrchipmanif you have the right answer but then mention something wrong (like for part a i did flawlessly but then I said hydrogen from water goes to phosphate and hydroxide goes to ADP (which isn't true) would I still earn the point?
For c(ii), it’s saying for 10mg of protein after 10 minutes. Therefore, a mg every minute. So 16.5x10, right? Because it’s not 10mg every minute FOR 10 minutes; it’s 10mg after the 10 minutes is complete. So if it’s 16.5nmol in one minute, it would be 165 after 10 minutes. It’s going at an average rate of 1mg per minute. 10mg after 10 minutes. Unless I’m reading it wrong? This question was so weird to understand.
For 10 mins would be x10. Then instead of 1mg you use 10mg, which is another x10. That is they way I read it anyway.
@@mrchipman But it doesn’t say 10mg FOR 10 minutes. It says 10mg AFTER 10 minutes. Which means only 10mg in a span of 10 minutes. Not 10mg every minute FOR 10 minutes. 🤷♂️
@GrantEvans333 you might be onto something
@@mrchipmanEither way, this is such a rude question for them to ask lol. Should be simple but can be interpreted a bunch of different ways. How I read it though, if it had said “in nmol, 10mg of protein for 10 minutes,” I would have read that as 10mg every minute for 10 minutes. But since it says “10mg of protein after 10 minutes,” that sounds more like a total of 10mg made over that 10 minute period. I guess we’ll see when the rubric drops!
@GrantEvans333 would have been great if they had tested you over the math you actually practiced all year!
i did a line graph instead of a bar graph is that ok?
Nope. It says to do a bar graph..
Well..they gave us a freebie this year telling us the type of graph. I think one my students missed that as well lol
For the hydrolysis question, would they still take it even if I didn’t mention the phosphate groups at all?
I think so as long as you mentioned that adding water splits the molecule. I'm actually curious how that one will shake out as well.
really hope they do because i just said water is added to form two smaller molecules
Do you know roughly the percentage I need correct in order to get a 5?
I want to say it is around 70%
@@mrchipman Okay. A lot of sources say that a 93/120 (78%) is required
@rileycain6589 believe them; I haven’t seen new guidelines
if i said for a that you add water to hydrolyze atp, is that too general lol
Well, it depends if they accept "hydrolyze" undefined. I feel like the question is essentially asking you to define that. I may be wrong.
@@mrchipman hmm okay i was scared of the contradicting yourself part so I was scared to be too specific and get the point off but maybe that was the wrong approach