calcium - 2025 ACF Winter - Buzzpoints App

Question

Answer the following about the mitochondria beyond its role as the powerhouse of the cell, for 10 points each.

[10m] Mitochondria can sequester and regulate the concentration of this element, a secondary messenger. The endoplasmic reticulum is the primary cellular storage for this element that is bound by EF hand motifs.

ANSWER: calcium [or Ca]

[10e] Mitofusin proteins embedded in the outer mitochondrial membrane hydrolyze a molecule that contains this nucleotide for energy. This nucleotide pairs with cytosine in Watson–Crick base pairing.

ANSWER: guanine [or G; accept GTP]

[10h] Mitochondria use the Shemin pathway to synthesize these heterocyclic molecules that contain four pyrrole units. These molecules include heme, and partial saturation of them yields precursors to chlorophyll.

ANSWER: porphyrins [accept porphine]

<Editors, Biology>

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Summary


California	Main	Y	4	25.00	100%	100%	50%
Canada	Main	Y	6	18.33	83%	83%	17%
Florida	Main	Y	12	15.83	100%	42%	17%
Great Lakes	Main	Y	3	13.33	100%	0%	33%
Overflow	Main	Y	1	30.00	100%	100%	100%
Pacific Northwest	Main	Y	10	25.00	100%	80%	70%
South Central	Main	Y	5	16.00	80%	60%	20%
UK	Main	Y	4	17.50	100%	50%	25%
Upper Mid-Atlantic	Main	Y	8	18.75	75%	88%	25%
Upstate NY	Main	Y	8	21.25	88%	88%	38%
2025 ACF Nationals	2025-08-09	Y	9	18.89	100%	33%	56%

Data


Berkeley E	Berkeley A	10	10	0	20
Stanford A	Berkeley B	10	10	0	20
Berkeley C	Stanford B	10	10	10	30
Berkeley D	Stanford C	10	10	10	30
UCI	Claremont Scripps	10	0	0	10
USC	UCLA B	10	10	0	20
UCLA C	UCSB	10	10	0	20
UCSD Two Running Violet V Forms	UCLA A	10	10	0	20
UCLA D	UCSD Vices and Virtues	10	10	10	30
UCSD What Hath God Wrought	Claremont Pitzer	0	10	0	10
Guelph B	Toronto F	0	10	0	10
Toronto H	McGill A	10	10	0	20
Carleton	McMaster A	0	10	0	10
McMaster B	Guelph A	0	10	0	10
Toronto C	McMaster C	0	10	0	10
Toronto E	Queen's B	0	10	0	10
Toronto A	McGill C	10	10	10	30
Toronto B	Toronto I	10	10	10	30
Toronto D	McGill B	10	10	0	20
Toronto J	Waterloo	0	10	0	10
Ottawa	Toronto K	10	10	0	20
Toronto Metropolitan	Western Ontario	0	10	0	10
UF B	FIU	0	10	0	10
UF A	UF E	0	10	0	10
WashU A	Missouri A	10	10	10	30
UCF A	UCF B	0	10	10	20
Chicago B	Purdue C	10	10	10	30
Michigan B	Chicago C	10	10	0	20
Illinois B	Notre Dame D	10	10	10	30
Louisville A	Chicago D	10	10	10	30
Louisville B	Notre Dame C	0	10	10	20
Notre Dame A	Michigan A	10	10	10	30
UIC	Michigan C	0	10	0	10
Indiana A	Notre Dame B	10	10	10	30
Purdue A	Kentucky	10	10	10	30
Purdue B	Illinois C	10	10	0	20
Macalester A	St. Thomas	0	10	0	10
Macalester B	Carleton	10	0	0	10
Minnesota A	Minnesota B	0	10	10	20
Minnesota C	Nebraska	10	10	0	20
Iowa State	Wisconsin	10	10	0	20
Alberta	British Columbia B	0	10	10	20
British Columbia A	British Columbia C	10	10	0	20
Washington A	British Columbia D	0	10	0	10
Washington B	Simon Fraser	10	10	0	20
McGill D	Arizona State A	10	10	10	30
Northwestern C	Arizona State B	10	10	0	20
Northwestern B	Northwestern A	10	0	0	10
Ohio	Rose State	0	10	0	10
Texas A	Texas B	10	10	0	20
Tulsa	Iowa	10	10	10	30
UCO	Alberta B	10	10	0	20
UTD A	UTD B	10	0	0	10
Auburn B	Sewanee A	10	10	0	20
UAB A	Alabama B	10	10	10	30
Auburn A	Georgia Tech D	10	10	10	30
Georgia Tech B	Georgia Tech A	10	10	0	20
Vanderbilt B	Georgia Tech C	10	10	10	30
Huntsville B	Huntsville A	0	0	0	0
Alabama A	Mississippi State A	10	10	0	20
Bruin A	Vanderbilt A	10	10	0	20
Cambridge B	City St George's A	10	10	10	30
Imperial A	Sheffield B	0	10	10	20
Imperial B	LSE A	0	10	10	20
Manchester A	Durham B	0	10	0	10
Cambridge C	Bristol B	0	10	0	10
Oxford A	Southampton A	0	10	10	20
Durham A	Sheffield A	10	10	0	20
Imperial C	Sheffield C	10	10	10	30
Southampton B	Oxford B	0	10	0	10