sd clAo DUC vA EAo r4o rHr cHeN nsc ctAr roAN rnnx vrAv riNn cAlr rnvOn CgiNH THtfC M6n: SINH HQC.. EItM CUA TOAN BAI THI cAc CIAU KHAO Hq, ftn vd chii kf s6 pnAcn Do Tradng ban chiim t
Trang 1sd clAo DUC vA EAo r4o rHr cHeN nsc ctAr roAN rnnx vrAv riNn cAlr rnv
On CgiNH THtfC M6n: SINH HQC Lop 12."C6.p THPT
Thdi gian: 120 phrit (kh6ng kE thdi gian giao dA) Ngiy thi: 2411012015
Chti y: - Di thi gim 05 trang, 6 cdu hdi, mdi cdu 5 di€m.
- Thi sini ldm bdi traic ti6p vdo bdn di thi nay.
EItM CUA TOAN BAI THI cAc CIAU KHAO
(Hq, ftn vd chii kf)
s6 pnAcn
(Do Tradng ban chiim thi ghi)
euy rlinh: ThI sinh trinh bay vdn tdt.cdch gidi, trZt qud tlnh todn vdo 6 t iins ltin ke bat todn Cic iit q"a t{nh chinh xdc tdi 4 chii sii phdnlh4p phan sau diiu phiiy theo quy tiic ldm trdn
sd cila don vi tinh quy dinh *ong bdi todn
Ciu 1
O mQt ddng hg, trong si5 trudng hgrp sinh d6i thi x6c su6t sinh ddi cing tnlmg
chitim ty li'25% tutQt ngudi php nt dang mang hai thai nhi ctng hic vi b5c si cho
UiCt trri6,1a tr6 slp riofr""O
"ird gi6i tfnh X6c su6t Ae nai drla tr6 d6 phSt tri6n tu cirng mQt trrmg ld bao nhi6u phdn trdm?
Trang 2Trong mQt thi nghiQm l6n men b6ng ndm met trong d.trg dich ilucmg saccar6zo, AC ,rghien crlu Anh hucmg cianhiet tlQ 16n hopt tinh 16n men Ctanol ctra
n6m men, ngudi ta thu du-o c lugng COz (ml) theo tlng khoang thdi gian tucmg img
voi nhiQt d0 thi nghiQm nhu sau:
a Tinh t6c dQ lugng CO2 trung binh (mlcoz/phrit) sinh ra khi n6m men 16n
men 6 mdi nfriet dQ theo cilc giStri thu dugc trong khoang giffa2 vi 4 phrit
b Nhan x6t 6nh huong ctra nhiQt do d6i v6i hopt tinh enzym o nam men
Thoi gian
So luqc cdch gidi
Trang 3CAU 3
MQt ngudi c6 nhip tim ld lS ldrn/phttt, t6ng lugng mdu ld 5 lit M6i lAn tim
dflp day clugc lugng m6u vdo dQng mpch chri li 70 ml Gi6 st ngudi d6 ti6m 40m,5 thu6c c6 thli gianbdnth6i qua thAn ld 4 gid, sau mQt thdi gian X giq ngudi tathdy
n6ng ctQ thutic trong m6u ngudi ndy le 0,0005 mg/ml
- Lugng
m5u tim day vdo clong mpch chtr trong thdi gian X gid li bao
nhi6u (lft)?
Cflu 4
Benh m6u kh6 d6ng o ngudi do gen I[n a nim tr0n nhiSm s6c th6 (NST) gi6i
tinh x quy dinh (kh6ng c6 alen tuong img tr6n Y) Ngudi benh c6 ki6u gen X'Xu 6
nt vd X"Y 6 nam C6 so c16 phi hQ sau ddy:
rna nc t
rne ne n
O : nfi binh thucrng
E : nam binhthucrng
I : nam bi bQnh Hdy cho bi6t :
a Ki6u gen & Ir, IIz vd 113, cdn cri vdo ddu OC UiCt dugc diAu d6?
b N6u ngudi con g6i ll2ldy chdng binh thuong thi x5c suAt dC con dAu ldng ctra hg bi benh miq kh6 il6ng Id bao nhiOu?
Trang 4Ciu 6
C6c ddnliQu sau dAy ln ddng ndng lugng di qua mQt chudi thrig 6n trong hQ
sinh th6i gOr" .ar lodi ng6, cheu cli6u va gn C-c th6ng tO Hen quan d6n ddng n5ng
i"q"s 1brE" ;hi;"" firc %) g6m: I h nan! lusns ticu ihp, A h nang luqtlg hup thu,
f ia nang luo ng thii b6 (phan,_ nu6c ti6u, v6 cer ), R le ndng lugng m6t di do h6
hap va P ld ndng lugng sAn xuAt dugc
g lugng cira m6i lodi vd cua chuSi thilc 5n
Het
-'-:
\
So lu'qc ctich gidi
tr6n
KAt qud