Biology (0610) grade thresholds

Cambridge IGCSE — official minimum raw marks per grade.

June 2025

Overall thresholds (by syllabus option)

Option	Components	Max	A*	A	B	C	D	E	F	G
BX	21, 41, 51	200	159	131	103	75	65	56	47	38
BY	22, 42, 52	200	173	148	123	99	85	71	58	45
CX	21, 41, 61	200	160	132	104	76	66	56	48	40
CY	22, 42, 62	200	174	149	124	99	85	71	58	45
CZ	23, 43, 63	200	157	132	107	82	70	59	49	39
FX	11, 31, 51	200	–	–	–	117	101	85	69	53
FY	12, 32, 52	200	–	–	–	113	99	85	72	59
FZ	13, 33, 53	200	–	–	–	112	99	87	75	63
GX	11, 31, 61	200	–	–	–	118	101	85	70	55
GY	12, 32, 62	200	–	–	–	113	99	85	72	59

Per-component thresholds

Component	Max mark	A	B	C	D	E	F	G
11	40	–	–	26	23	20	17	14
12	40	–	–	25	22	19	16	13
13	40	–	–	27	24	22	20	18
21	40	30	24	19	17	15	13	12
22	40	32	27	23	20	17	15	13
23	40	29	24	20	18	16	14	12
31	80	–	–	47	40	32	25	18
32	80	–	–	42	37	31	26	21
33	80	–	–	43	38	33	27	22
41	80	45	34	22	19	15	12	9
42	80	55	45	33	28	22	16	10
43	80	48	38	26	22	17	13	9
51	40	30	24	19	17	15	12	9
52	40	31	27	23	20	18	15	13
53	40	27	22	18	15	13	11	9
61	40	31	25	20	17	15	13	11
62	40	32	27	23	20	18	15	13
63	40	28	23	19	16	14	12	10

Source: official CAIE grade-threshold table (June 2025)

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Grade A* is not awarded on individual components. “–” means the grade is not available for that row (e.g. IGCSE core tier caps at grade C). Independent reference — not affiliated with CAIE.

Component	Max mark	A	B	C	D	E	F	G
11	40	–	–	26	23	20	17	14
12	40	–	–	25	22	19	16	13
13	40	–	–	27	24	22	20	18
21	40	30	24	19	17	15	13	12
22	40	32	27	23	20	17	15	13
23	40	29	24	20	18	16	14	12
31	80	–	–	47	40	32	25	18
32	80	–	–	42	37	31	26	21
33	80	–	–	43	38	33	27	22
41	80	45	34	22	19	15	12	9
42	80	55	45	33	28	22	16	10
43	80	48	38	26	22	17	13	9
51	40	30	24	19	17	15	12	9
52	40	31	27	23	20	18	15	13
53	40	27	22	18	15	13	11	9
61	40	31	25	20	17	15	13	11
62	40	32	27	23	20	18	15	13
63	40	28	23	19	16	14	12	10

Component	Max mark	A	B	C	D	E	F	G
11	40	–	–	26	23	20	17	14
12	40	–	–	25	22	19	16	13
13	40	–	–	27	24	22	20	18
21	40	30	24	19	17	15	13	12
22	40	32	27	23	20	17	15	13
23	40	29	24	20	18	16	14	12
31	80	–	–	47	40	32	25	18
32	80	–	–	42	37	31	26	21
33	80	–	–	43	38	33	27	22
41	80	45	34	22	19	15	12	9
42	80	55	45	33	28	22	16	10
43	80	48	38	26	22	17	13	9
51	40	30	24	19	17	15	12	9
52	40	31	27	23	20	18	15	13
53	40	27	22	18	15	13	11	9
61	40	31	25	20	17	15	13	11
62	40	32	27	23	20	18	15	13
63	40	28	23	19	16	14	12	10

Component	Max mark	A	B	C	D	E	F	G
11	40	–	–	26	23	20	17	14
12	40	–	–	25	22	19	16	13
13	40	–	–	27	24	22	20	18
21	40	30	24	19	17	15	13	12
22	40	32	27	23	20	17	15	13
23	40	29	24	20	18	16	14	12
31	80	–	–	47	40	32	25	18
32	80	–	–	42	37	31	26	21
33	80	–	–	43	38	33	27	22
41	80	45	34	22	19	15	12	9
42	80	55	45	33	28	22	16	10
43	80	48	38	26	22	17	13	9
51	40	30	24	19	17	15	12	9
52	40	31	27	23	20	18	15	13
53	40	27	22	18	15	13	11	9
61	40	31	25	20	17	15	13	11
62	40	32	27	23	20	18	15	13
63	40	28	23	19	16	14	12	10