They tested the nervous system last year on the FRQ. But she didn’t give us any specific systems.
Do we have to be familiar with the specificities of muscle structure and function?
Ok i just took the 2012 practice, for yall who took the ap bio exam before, how closely do those long questions on the 2012 practice resemble the actual exam…
Not the specifics. Know that they are controlled by neurons and that they can ONLY contract and relax. They do not expand. Know about actin and myosin, and how they slide against each other, which is what causes the muscles to contract. Also, know that Ca is neccessary for the system to work.
@haal2014 This site provides 2013 and 2014 practice exams
https://sites.google.com/site/bfarren/ap-biology
@moony1972 What was your score on the AP exam? (Just curious)
@mzr1998 Muscles aren’t really a part of the new curriculum. But you should probably know how the nervous system controls effectors like muscles (reflex arc, etc.)
5
@Collegewhat Thanks!
guys, I’m betting that there’s going to be an endocrine free response or at least one or two on immune/endocrine/nervous systems, one on ecology/populations, and one on plants. I feel like that’s a general trend, going off of the two released FRQs
Does anybody know if we need to know the development of the frog and bird embryos? I understand the development of mammalian embryos, but the development of frog and bird embryos are relatively different and I really don’t want to memorize them 
Can someone explain how we know whether two genes are on the same chromosome, different, autosomal, or sex-linked based on a chart?
Ex:
In Table I, the ratio of phenotypes in the offspring from the testcross with F1 plants that had purple flowers and inflated pods suggests that the genes for flower color and pod shape are located
(A) close together on the same autosome
(B) on the X chromosome
© on different chromosomes
(D) on a mitochondrial chromosome
Purple, Inflated x White, Constricted = Purple, Inflated (F1).
Testcross: Purple/Inflated (315), Purple/Constricted (312), White/Inflated (320), White/Constricted (317)
Also, I’m pretty sure someone already answered this question, but I couldn’t find it. How much do we need to know for plants? Barron’s hardly touches on it, so it seems relatively unimportant, but I saw multiple FRQs that are based off of plants
@Moony1972 How much can you miss on MC and FRQ in order to get a 5?
@CollageWhat Since the ratio of the phenotypes are basically 1:1:1:1, the genes are linked. If you get a ratio similar to 9:3:3:1, the genes will be unlinked and on different chromosomes.
What exactly is the role of Ca2+ ions in transport of neurotransmitters?
@FlowerChild3525 You don’t need to know the differences in embryos
@AnniiT I’m not positive. But I think a 75% on the test overall can get you a 5. And the essays and the MC are 50% each
@FlowerChild3525 They don’t require you to know details of embryology anymore.
I dont think you have to know much about the embryos of tadpoles or amphibians. Just understand the process of apoptosis which takes place in some embryonic development.
@rpanther When the action potential reaches the nerve terminal, voltage-dependent Ca2+ channels open and Ca2+ rushes into the neuron terminal. This causes the region to depolarize, which then allows the vesicles to bind to the membrane of the synapse and release the vesicles through exocytosis
@Moony1972 So if you get every single MC right but get every FRQ wrong, you won’t pass?