AP Biology/ Unit 4: Cell Communication and Cell Cycle

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You’ll learn how cells use energy and information transmission to communicate and replicate.

Question Difficulty:

Question	Difficulty	Students Solved
Signal Transduction Pathway Events	medium	35
Cell Cycle Urban Planning Analogy	medium	32
Cyclin-Dependent Kinases and Cell Cycle Regulation	medium	35
Inhibition of Mitotic Spindle Formation	medium	30
Cell Cycle Regulation by CDKs	medium	21
Cell Division in Plant Growth	medium	26
Phosphatase Inhibitor Effect on Signal Transduction	medium	23
Signal Transduction Cellular Outcomes	medium	18
G-Protein Signaling Experimental Analysis	medium	18
Cancer and Cell Cycle Regulation	medium	20
Epinephrine Signal Transduction Pathway	medium	16
Calculating Active Cell Receptors	medium	18
Identifying a Phase of Mitosis	medium	17
Inhibition of Sister Chromatid Separation	medium	17
GPCR Signal Transduction Sequence	medium	16
Cell Cycle Checkpoint Function	medium	11
Thyroid Hormone Receptor Mutation	medium	13
Neurotransmitter Signaling Mutation	medium	5
Lactation Positive Feedback Mechanism	medium	5
Ras Protein Mutation and Cell Signaling	medium	6

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1 – 20 of 864

Unit Leaderboard

Rank	User	Correct Count	Attempt Count	Total Time	Score
#1	kilpatrickrclay	264	332	0m 00s	25,720
#2	amabbas351	152	189	0m 00s	14,830
#3	fehdyounes	105	126	0m 00s	10,290
#4	gabrielwfidel	85	113	23m 51s	6,789
#5	desaib01	42	62	0m 00s	4,000
#6	29choi.minah	39	46	0m 00s	3,830
#7	ndele646	41	72	0m 00s	3,790
#8	mapplectgg	55	63	31m 21s	3,539
#9	gjm200294	47	168	0m 00s	3,490
#10	jesslynchchan	35	49	0m 00s	3,360

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1 – 10 of 268

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