✨2024 AP Bio FRQs✨

[@scytherzilla]

I was confident before, now I realize I might be cooked

[@apbiopenguinsinsta-review4538]

Maybe there are acceptable answers that I don’t have (but you thought up). Maybe I am wrong. Also, remember you don’t need EVERY single point. You just need to beat the nation 🫶🏻

[@justinkenneally4988]

As long as my explanations are up to par, I should be alright! Thanks so much for all of your videos, they’ve helped me a lot!

[@thirdtoe9721]

thank you so much,
my bio teacher loves you and showed us your ten day review and you’ve just been incredibly helpful. bio is my favorite and your passion for it is amazing too! you’re a great teacher!

[@apbiopenguinsinsta-review4538]

🥰 happy to help! Let me know how amazing you did when the scores release in July.

[@rohilpat]

On question one I was worried that I lost the point but I’m glad you indeed do compare to the control

[@nahzea]

I thought I was cooked, but now I know I cooked thanks to you. Predicting a 5 and if I do get a 5 it's all thanks to you!

[@tristancarie1]

Just wanted to say, I watched your cram vid the night before the exam and absolutely cooked on this frq, put my scores into the calculator and got a pretty high 5 so thanks for all the materials you provided for us students to study with 😊

[@apbiopenguinsinsta-review4538]

Happy to help 🫶🏻 when you get your score be sure to come back and LMK how you did.

[@ybnsf_villians]

scordfes didnt even come out yet how would yo uknow them>

[@tristancarie1]

@@ybnsf_villians i estimated them based off how confident i was in my answers(frqs are based off my answers tho cause i remembered them)

[@ybnsf_villians]

@@tristancarie1 nice

[@JevonChen]

I screwed up my graph with the standard error bar and I use my pen to try and cover it up only for it to look even worse

[@jaredmccain-pm4rq]

hey, thanks for everything you do. had a couple of questions. for 5b, did i have to talk about now they have the functional ag gene cuz i just said they were able to live in both cold 1.2C environments as well as warmer environments 5-10C so they had better genetic diversity. would that be enough for the point?
also 5d i just said that favorable traits would choose which habitat they live in, like a favorable trait would only help some in one specific habitst while some may have other favorable traiys for other specific habitats. it was kind of general/vague as i didnt talk abt the temperatures. woud this also be enough?

[@EvaP-zb4ti]

For part D, can't no effect still work as an answer? Crossing over frequency is not completely stopping; its just decreased slightly.

[@apbiopenguinsinsta-review4538]

Idk the prompt stated that it needs to cross over for separation of alleles.

[@justinkenneally4988]

I’m finally validated! I kept saying that the chromosomes would less frequently separate/experience more nondisjunction, but nobody believed me 😭

[@apbiopenguinsinsta-review4538]

The FRQ last year had students stating that same thing. It is surprising that it was two years in a row.

[@christopherrhodaloam9577]

@@apbiopenguinsinsta-review4538 is it possible for me to get the point for the prediction (there would be an increase number) but then not get the justify point?

[@GuihongYu]

For d (I) and (ii) I said attaching CTF would not affect the number of copies of chromosome 8 because changing the frequency of crossing over only changes the frequency of recombination of genes not the segregation of chromosomes, so there will still be one copy of chromosome 8 in each haploid daughter cell. Is this still right? Because I forgot to consider the first line of the frq.

[@synphonica_lul3162]

That’s what i wrote too

[@apbiopenguinsinsta-review4538]

But if the chromosomes cannot segregate during anaphase then the daughter cell won’t be haploid in terms of chromosome 8.
That’s a great logical answer though so I hope you are right and I am wrong. 🫶🏻

[@asylum2200]

@@synphonica_lul3162 Same

[@GuihongYu]

@@apbiopenguinsinsta-review4538 yeah I try think I was wrong because I forgot the entire premise in the first line that crossing over does affect segregation

[@nicoleg5587]

For the post zygotic barrier question, could we have written allopathic speciation? The term is related to post zygotic speciation so I was wondering if that would work? I wrote an example where a species would have been separated by chance due to a natural disaster causing them to speciate into a new species?

[@apbiopenguinsinsta-review4538]

I wouldn’t consider that specifically post zygotic so I don’t think Allopatric would be acceptable

[@Speedstrike76]

For number 2A, I just put that water is an input that is used to break covalent bonds between atoms. Would they still accept that?

[@apbiopenguinsinsta-review4538]

Depends how specific they wanted it to be. Hard to say how CB will write their scoring guideline.

[@eshaanb3888]

For the amount of copies of chromosome 8 question I said if crossing over is blocked there will be a higher frequency of haploid daughter cells with 1 of that chromosme bc crossing over can result in translocation which contributes to polyploidy and if crossing over is blocked then more cells will receive a normal amount of chromosmes would I receive any points for this

[@eneyakhalil7842]

How does the figure in number 6 show that UGG takes longer to get started?

[@apbiopenguinsinsta-review4538]

It remained on the UGG for a longer period of time.

[@alamofour1514]

I got a 5 cuz of you! You were so clutch

[@apbiopenguinsinsta-review4538]

@@alamofour1514 congrats!!! I am so happy for you. Your hard work paid off ❤️🤓🐧

[@kathrynmeier3388]

For 3d, I wonder if the writers are looking for students to tell why the transporter is required as part of that justify. I wrote something about glucose being polar and requiring the GLUT protein to help it across the hydrophobic layer of the membrane in addition to the rest that you also wrote.

[@apbiopenguinsinsta-review4538]

Maybe. It’s hard to say, but I would assume no. The wording of the question tells you that it requires a protein for transport and doesn’t require you to explain why.

[@Peaceshiettt]

Hey so for b (i) I said that the control group would be a group without the modified chromosome 8. Would I be wrong?

[@Jamaanwisosows]

If I labeled everything but did a box plot instead of a bar graph do I get any points 😭

[@benjaminngo5537]

For the graph for some reason I thought you needed equal intervals for the axis. I went by increments of 5 for the graphing question but I listed no data for the points that were not explicitly mentioned. Would that still get the point for the correct axis or no?

[@apbiopenguinsinsta-review4538]

If scaling was a point and your axis is scaled, I could see you getting that point even if you didn’t graph all the lines.

[@yosway6495]

Is it possible to get the justification point right if you get the prediction wrong?

[@apbiopenguinsinsta-review4538]

They try not to “marry” the points so you should be able to.

[@Yahmar-rs3jv]

For 5C, if I put 2 X’s but they both were on the same branch you put it on, would i not get a point?

[@apbiopenguinsinsta-review4538]

Yes. You would need to mark the same branch as me (if I am correct)

[@Geeking_Out_On_Stem]

There was table and graph heavy.

[@jadeblades]

for the s phase question, i wrote that it was for replicating dna AND organelles. would i get partial credit for this or no credit at all?

[@apbiopenguinsinsta-review4538]

Possibly. If your answer doesn’t take away from the answer they are looking for, you should be good.,

[@jlobz_8128]

for 5a, i said the embryo would not be able to develop properly. do you think i could get that point?

[@apbiopenguinsinsta-review4538]

That would fall under reduced hybrid viability. I think they would count that.

[@jane-um1xe]

15:30
Would this ans be correct? Cuz the question said when the FUNCTIONAL ag protein evolved, but the M. aeglefinus and the M. merlangus both have the nonfunctional protein (depicted by the L next to their species name)

[@apbiopenguinsinsta-review4538]

The L describes the loss of the function so at some point it was functional and they have the gene. I could also be wrong. Did you think it went to the common ancestor of all of the P ones?

[@jlobz_8128]

@@apbiopenguinsinsta-review4538yeah i put it below for only the p one

[@jane-um1xe]

@@apbiopenguinsinsta-review4538Yeah, thats where I put my X :(

[@jane-um1xe]

@@apbiopenguinsinsta-review4538 Yeah, thats where I put my X :( I didn’t really think into the word “lost” I just saw it as them having the protein, but it doesn’t function normally

[@josephouyang3607]

Do you think these FRQs were easier or harder than last year’s? Or in other words, would it take less or more points to get a 5 this year? Thank you so much for all your help! ❤

[@apbiopenguinsinsta-review4538]

I think these questions were easier than previous years, but a lot depends on the way the scoring guidelines are written and how strict they are for specific wording.

[@Jamaanwisosows]

Do you really think they will not give me a point if i said water breaks the bonds (plural) instead of the bond in atp.

[@rohilpat]

If you specified atp

[@jlobz_8128]

if i got around a 50/60 on mcq, what would i need on the frq for a 5?

[@apbiopenguinsinsta-review4538]

About 75% of the points (that’s a high estimate)

[@shuyaminerdpogikeadascrazy]

for question 1, I said some cells might have an aneuploidy which is like the same thing as irregular number of chromosomes right? I’m quite scared 😭

[@apbiopenguinsinsta-review4538]

I can see that.

[@shuyaminerdpogikeadascrazy]

would you say that I would get the point? because like what I thought was that there’s gonna be irregular or incorrect numbers of chromosomes in the daughter cells because the segregation is being impacted and that way aneuploidy was a term to sum that up….

[@apbiopenguinsinsta-review4538]

@@shuyaminerdpogikeadascrazy as I said. I could see that. The scoring guidelines haven’t been made nor released to the public so I don’t know if it would be accepted or not but I could see it being accepted.

[@shuyaminerdpogikeadascrazy]

oh ok, thank you so much!

[@hahahano6702]

hi! for the very first question where it asks for what happens during the s phase, i said that chromosomes duplicate. do u think it would be an acceptable answer?

[@apbiopenguinsinsta-review4538]

Maybe 🤷🏻‍♀️hard to say how detailed they wanted it to be.

[@kylemach6546]

I thought it would be nmol/min/mg so equal nmol(mg)/min. Cuz it’s like nmol/1*mg/min. So just multiply and divide by 10 so it would give u 16.5 which was just the original amount? Is that right?

[@apbiopenguinsinsta-review4538]

That’s where I went back and forth. I thought that was the answer. Because if it was both in the denominator it would be nmol/(mg * min). But then why wouldn’t they have just written it as (nmol * mg)/min. 🙄 I stared at that question for like 10 minutes.

[@rohilpat]

⁠it’s left to right like in PEMDAS. Like 10/2/5=1, not 25. I think. Idk.

[@apbiopenguinsinsta-review4538]

@@rohilpat but it’s per 1 mg per 1 min so…. 🤷🏻‍♀️ that’s going to be one of those points to separate the 4s and 5s 🤣

[@zoek1671]

At 8:30, i put 1650 instead of 1650 nmol. Would I get the question wrong?

[@apbiopenguinsinsta-review4538]

The units are in the question so I assume you will be ok without units, but you probably shouldn’t have naked numbers

[@user-vc4xx8xo7v]

Help I said fertility reduction instead of reduced hybrid reduction im cooked. I described it right though does that count for anything...HELP

[@apbiopenguinsinsta-review4538]

We are able to read kid speak. You should be fine 🫶🏻

[@christopherrhodaloam9577]

Pls tell me it is okay if I just said S phase is the site of dna replication. Past part A's that use the same verb have not required detailed answers so-😭😭😭

[@rohilpat]

Yeah should be alr I think. I just said duplicate cells genome in preparation for meiosis

[@apbiopenguinsinsta-review4538]

Not sure it said describe so you might have needed more info.

[@christopherrhodaloam9577]

@@apbiopenguinsinsta-review4538 OH GOD IM GONNA CRY NO

[@chasemccannon2108]

I might have gotten 10 points total 😭

[@apbiopenguinsinsta-review4538]

10/34 is not bad 🫶🏻 your MCQ can carry you!

[@thejourneyofGG]

would you be able to post the pdf of this??

[@apbiopenguinsinsta-review4538]

Sorry for the delay. It is posted on my website: apbiopenguins.weebly.com/mrs-jones-responses1.html

[@therev07]

for 2c i put 165 nmol and for 6a i put a range between 100 and 200 ms codon. would i be right?
Edit: I got a 5 from self studying

[@apbiopenguinsinsta-review4538]

I think the two plausible answers are 16.5 and 1650 depending on how we were to read those units. The range might be accepted since you don’t know exactly the number but you know it’s between 100 and 200. I could see that being accepted,

[@therev07]

@@apbiopenguinsinsta-review4538 ok thanks

[@jlobz_8128]

i did a dual y axis??

[@apbiopenguinsinsta-review4538]

That’s logical. They might be giving both - or you could be right and I could be wrong. I figured since it was the same spread of data it might be on the same axis.

[@GuihongYu]

Do you think this years curve will be stricter than previous years, since it seems this years exam is a little easier than previous years (I feel like)

[@apbiopenguinsinsta-review4538]

I think the points aren’t as obvious as we think they are. I fear that it felt too easy.

[@GuihongYu]

@@apbiopenguinsinsta-review4538 ok this years form O MCQs were super easy, but I don’t know how hard previous years’ MCQs were so I can’t compare

[@apbiopenguinsinsta-review4538]

@@GuihongYu I never know how the MCQ looks since I never see it 🤣

[@Mortalos1]

For 4c and 4d.
Could we have put that the introduction of ladybugs wouldn't have an effect on the abundance of the native bunchgrass population? (Like it'd just stabilize or have no change)
Reasoning: Even though the ladybugs would get rid of SOME aphids, they wouldn't get rid of them all and the buncgrass will continue to have a threat to the population (Though not as severe), allowing some (though not as much) to continue dying. The wild oat still remains dominant as it doesn't have any threats to it and it continues to outcompete the bunchgrass regardless.

[@apbiopenguinsinsta-review4538]

Interesting thought. Maybe.

[@shuyaminerdpogikeadascrazy]

I had the same thought I wrote that the there would be a reduction in the number of grass dying due to infection so the population would increase but only slightly because there is still an invasive species attacking them

[@shuyaminerdpogikeadascrazy]

would I get the point?

[@apbiopenguinsinsta-review4538]

@@shuyaminerdpogikeadascrazy hard to say. We will find out in September when they release the scoring guidelines.

[@geoffreyokonkwo6128]

For question 2 part d I’m a little confused because you said the proton gradient would increase in the inter membrane space, but wasn’t it asking for the effect on the inner mitochondrial membrane, and aren’t they 2 different things ? I thought that if the channel function of atp synthase was blocked h+ ions wouldn’t be able to go into and travel through atp synthase because it would be closed off, resulting in an increase in the proton gradient of the inter membrane space but a decrease in the proton gradient of the inner mitochondrial membrane because H+ can’t enter the atp synthase.

[@jaredmccain-pm4rq]

she prolly meant like the proton gradient increased as a result of increaded protons in the intermembrsne space (higher concentration)

[@That7mad]

My FRQ was different from this lol

[@apbiopenguinsinsta-review4538]

You didn’t have form O. No discussing your Qs… sorry :(

[@That7mad]

@@apbiopenguinsinsta-review4538 yep, I had form I. Still watched the vid tho for the KNOWLEDGE
Thanks for making it

[@GuihongYu]

Is title needed for the graph in question 2?

[@apbiopenguinsinsta-review4538]

Probably not, there hasn’t been points for a title in years.

[@GuihongYu]

@@apbiopenguinsinsta-review4538 thanks!