Frederick Sanger
Tin (IV) sulfide, tseem hu ua stannic sulfide, yog cov tshuaj lom neeg. Nws cov qauv tshuaj yog SnS2. Nws muaj tin thiab sulfide ions hauv nws. Cov tin yog nyob rau hauv nws lub xeev oxidation +4
Nyob rau hauv lub teb ntawm noob caj noob ces, ib tug electropherogram yog ib tug zajlus ntawm DNA fragment ntau thiab tsawg, feem ntau yog siv rau genotyping xws li DNA sequencing. Xws li electropherograms yuav raug siv los txiav txim DNA kab ke genotypes, lossis cov genotypes uas yog raws li qhov ntev ntawm cov DNA tshwj xeeb
ob Ntawm no, cov ntsiab lus twg yog kev zam rau Aufbau txoj cai? Piv txwv li, ruthenium, rhodium, nyiaj thiab platinum yog tag nrho kev zam rau Aufbau txoj cai vim yog sau los yog ib nrab puv subshells. Ib sab saum toj no, yog vim li cas electron configuration rau tooj liab 1s22s22p63s23p63d104s1 es tsis txhob 1s22s22p63s23p63d94s2?
Noun. (plural conical flasks) (chemistry) Ib lub khob kuaj lub khob ntawm lub conical profile nrog lub nqaim tubular caj dab thiab lub tiaj tiaj hauv qab, siv los tswj cov kev daws teeb meem lossis los ua titrations
Mitochondria - Tig rau lub Powerhouse Mitochondria yog lub npe hu ua powerhouses ntawm tes. Lawv yog cov organelles uas ua zoo li lub plab zom mov uas siv cov as-ham, zom lawv, thiab tsim lub zog nplua nuj molecules rau lub cell. Cov txheej txheem biochemical ntawm cov cell hu ua cellular respiration
Cov theem ntawm Cellular Respiration Glycolysis tshwm sim hauv cytosol ntawm lub xov tooj ntawm tes thiab tsis xav tau cov pa oxygen, thaum lub voj voog Krebs thiab electron thauj khoom tshwm sim hauv mitochondria thiab xav tau oxygen
Lub tshuab ziab khaub ncaws ua kom lub siab nyob rau hauv cov tshuaj tiv thaiv cov hlab ntsha los ntawm kev tso cov pa roj kom khiav tawm thaum tiv thaiv kom tsis txhob ya raws los ntawm kev kis cov reactants
Kev nqus spectrum tshwm sim thaum lub teeb dhau los ntawm qhov txias, dilute roj thiab atoms hauv cov pa nqus ntawm cov yam ntxwv zaus; Txij li thaum lub teeb rov tshwm sim tsis zoo li yuav tawm mus rau tib qho kev coj ua raws li cov photon absorbed, qhov no ua rau cov kab tsaus nti (tsis muaj lub teeb) hauv spectrum
Lub caij ntuj no hardy rau USDA Zones 8-11 qhov twg cov nroj tsuag loj hlob nyob rau hauv nruab nrab noo noo, zoo-drained xau nyob rau hauv tag nrho cov hnub. Tolerates ib co drought. Vim tias nws qhov kev loj hlob sai heev, nws tuaj yeem cog rau hauv lub vaj hauv St. Louis cheeb tsam raws li kev cog qoob loo txhua xyoo los ntawm cov noob
California yog nplua nuj nyob rau hauv natural resources. Huab cua, dej, nroj tsuag, thiab tsiaj txhu yog natural resources. Yog li ntawd yog ntsev, thee, thiab roj
Eta squared ntsuas qhov kev faib ua feem ntawm tag nrho qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv uas cuam tshuam nrog kev koom ua tswv cuab ntawm cov pab pawg sib txawv uas txhais los ntawm qhov sib txawv ntawm tus kheej. Niaj hnub no, ib nrab eta squared tau dhau los ua qhov kev ntsuas ntawm cov txiaj ntsig loj hauv cov ntaub ntawv tshawb fawb txog kev kawm
Kev kho mob pom zoo yog txhawm rau tshuaj tua kab mob fungicide txhua 7 mus rau 10 hnub txij li lub sijhawm cov nroj tsuag tshiab tawm mus txog thaum lub paj tawg paj. Mancozeb yuav tsum yog ib qho zoo tshaj plaws. Chlorothalonil (Daconil) yog lwm cov tshuaj fungicide uas tuaj yeem pab qeeb blight ntawm peonies
Kev xaiv ntuj ua rau qhov zoo ntawm hom. Cov kab mob uas haum tshaj plaws hauv cov pej xeem yog cov uas muaj zog tshaj plaws, noj qab nyob zoo, ceev tshaj, thiab / lossis loj tshaj. Kev xaiv ntuj yog hais txog kev muaj sia nyob ntawm cov tib neeg zoo tshaj plaws hauv cov pej xeem. Kev xaiv ntuj tsim cov kab mob zoo kawg nkaus rau lawv qhov chaw
Nuclear zog los ntawm me me hloov pauv hauv nuclei raws li cov txheej txheem xov tooj cua tshwm sim. Hauv fission, loj nuclei tawg sib nrug thiab tso tawm lub zog; hauv fusion, me me nuclei sib koom ua ke thiab tso tawm lub zog
Hauv cov noob caj noob ces, ib qho kev txhim kho yog luv luv (50-1500 bp) cheeb tsam ntawm DNA uas tuaj yeem khi los ntawm cov proteins (activators) txhawm rau ua kom muaj qhov kev hloov pauv ntawm cov noob caj noob ces yuav tshwm sim. Muaj ntau pua txhiab tus neeg txhim kho hauv tib neeg genome. Lawv muaj nyob rau hauv ob qho tib si prokaryotes thiab eukaryotes
Nws yog ib qho kev sib txuas ntawm ob kab lus, "yog tias ob kab lus sib koom ua ke ces lawv muaj qhov ntev sib npaug" thiab "yog tias ob kab lus sib npaug ntev ces lawv sib haum". Ib tug biconditional muaj tseeb yog tias thiab tsuas yog tias ob qho tib si conditionals muaj tseeb. Bi-conditionals yog sawv cev los ntawm lub cim ↔ los yog ⇔
Ua lej nws txhais tau tias qhov sib txawv ntawm cov chav kawm sab sauv thiab cov chav kawm qis. Class Interval = Upper Class limit – Lower class limit. Hauv kev txheeb cais, cov ntaub ntawv tau muab tso rau hauv cov chav sib txawv thiab qhov dav ntawm cov chav kawm zoo li no yog hu ua chav kawm ntu ntu
Feem ntau cov kab mob congenital congenital muaj xws li: Neural tube defects. Isolated hydrocephalus. Clubfoot. Cleft di ncauj thiab/los yog palate
Hauv ib lub cell, ntau cov organelles ua haujlwm kom tshem tawm cov khib nyiab. Ib qho ntawm cov organelles tseem ceeb koom nrog hauv kev zom zaub mov thiab tshem tawm pov tseg yog lysosome. Lysosomes yog cov organelles uas muaj cov enzymes digestive. Lawv zom cov organelles, cov khoom noj, thiab cov kab mob los yog cov kab mob uas muaj kab mob
Cov ntsiab lus: Hauv zej zog Gram-negative urinary tract cais tawm tseem muaj kev cuam tshuam rau mecillinam thiab ciprofloxacin, tab sis ib tus lej tseem ceeb tau tsim kev tiv thaiv rau trimethoprim / sulfamethoxazole
Cov ntsiab lus ntawm cov koom haum hauv ecology suav nrog cov pej xeem, zej zog, ecosystem, thiab biosphere. Ib qho ecosystem yog tag nrho cov tsiaj nyob hauv ib cheeb tsam cuam tshuam nrog tag nrho cov abiotic qhov chaw ntawm ib puag ncig
Verb (siv tsis muaj khoom) poob los yog poob hnyav; collapse: Suddenly sheslumped rau hauv pem teb. xav tias ib tug slouching, bowed, los yog bentposition los yog posture: sawv ntsug ncaj thiab tsis txhob poob
Cov roj yog ib yam khoom uas tsis muaj qhov ntim thiab tsis muaj qhov tseeb. Khoom thiab kua muaj ntim uas tsis hloov tau yooj yim. Ib qho roj, ntawm qhov tod tes, muaj qhov ntim uas hloov pauv kom haum rau qhov ntim ntawm nws lub thawv. Cov molecules nyob rau hauv ib tug roj yog sib nrug heev piv nrog rau cov molecules nyob rau hauv ib tug khoom los yog kua
Hydrogen bonding yog ib hom tshwj xeeb ntawm dipole-dipole attraction ntawm molecules, tsis yog covalent daim ntawv cog lus rau hydrogen atom. Nws tshwm sim los ntawm lub zog txaus nyiam ntawm hydrogen atom covalently bonded rau ib tug heev electronegative atom xws li N, O, los yog F atom thiab lwm yam electronegative atom
Qhov ib lab (ppm) yog xam los ntawm qhov hnyav. Ib ppm yog sib npaug rau 1 phaus chlorine hauv 1 lab phaus dej. Ib lab phaus dej yog kwv yees li 120,000 nkas loos. Hloov mus rau ounces, (1 phaus = 16 ooj) 1 ooj ntawm chlorine hauv 7,500 nkas loos sib npaug 1 ppm
Lipophilicity plays lub luag haujlwm tseem ceeb hauv kev tshawb nrhiav tshuaj thiab kev tsim qauv. Lub lipophilicity ntawm cov organic compound tuaj yeem piav qhia los ntawm qhov sib faib coefficient, logP, uas tuaj yeem txhais tau tias yog qhov piv ntawm qhov sib piv ntawm qhov sib xyaw ua ke ntawm qhov sib npaug ntawm cov organic thiab aqueous theem
Txhawm rau sau qhov sib npaug ionic rau AgNO3 + NaCl = AgCl + NaNO3 (Silver nitrate + Sodium chloride) peb ua raws peb kauj ruam tseem ceeb
Chromatography yog siv nyob rau hauv cov txheej txheem kev lag luam los ntxuav cov tshuaj, kuaj cov kab ntau ntawm cov tshuaj, cais cov chiral compounds thiab kuaj cov khoom rau kev tswj kom zoo. Chromatography yog cov txheej txheem ntawm lub cev los ntawm kev sib xyaw ua ke sib cais lossis tshuaj xyuas
Thawj lub zog ntawm lub hnub yog ntes los ntawm photosynthesis thiab khaws cia rau hauv cov tshuaj sib txuas thaum cov nroj tsuag loj hlob. Lub zog no tom qab ntawd tso tawm ntau lab xyoo tom qab cov nroj tsuag no tau hloov mus rau hauv fossil fuels
Nyob rau hauv petrochemistry, roj av geology thiab organic chemistry, tawg yog cov txheej txheem uas nyuaj organic molecules xws li kerogens los yog ntev-chain hydrocarbons tau tawg mus rau hauv yooj yim molecules xws li lub teeb hydrocarbons, los ntawm kev tawg ntawm carbon-carbon bonds nyob rau hauv lub precursors
Muaj ob qho kev siv cov cim capacitor. Ib lub cim sawv cev rau lub polarized (feem ntau yog electrolytic los yog tantalum) capacitor, thiab lwm yam yog rau cov kaus mom uas tsis yog polarized. Nyob rau hauv txhua rooj plaub muaj ob terminals, khiav perpendicularly rau hauv daim hlau. Lub cim nrog ib lub phaj nkhaus qhia tias lub capacitor yog polarized
Cov kab mob tsis raug cais raws li cov hlwb thiab yog li ntawd tsis muaj unicellular los yog multicellular kab mob.Viruses muaj genomes uas muaj xws li DNA los yog RNA, thiab muaj cov piv txwv ntawm cov kab mob uas yog ob leeg-stranded los yog ib leeg-stranded
Ib Leeg - Txoj Kev Zoo. Txoj kev zoo tib yam mus zeros rau ntawm ib qho kev zoo thiab nws qhov tshwm sim rau tus cwj pwm. - siv los kawm txog kev ntseeg, kev saib xyuas tus kheej, kev xav tsis thoob, thiab lwm yam
DNA cloning yog siv los tsim ntau cov ntawv luam ntawm cov noob lossis lwm yam DNA. Lub cloned DNA tuaj yeem siv los ua: Ua haujlwm ntawm cov noob. Tshawb nrhiav cov yam ntxwv ntawm cov noob (qhov loj me, kev qhia, kev faib cov ntaub so ntswg)
Genetic variation yog ib lo lus siv los piav txog qhov kev hloov pauv hauv DNA ib ntus hauv peb cov genomes. Genetic variation tshwm sim nyob rau hauv ntau hom, los yog alleles?, ntawm noob
Cov hom tseem ceeb): Cov lej suav {1, 2, 3,} feem ntau hu ua tus lej ntuj; Txawm li cas los xij, lwm cov ntsiab lus suav nrog 0, yog li cov lej tsis zoo {0, 1, 2, 3,} kuj hu ua tus lej ntuj. Cov lej ntuj suav nrog 0 tseem hu ua tus lej tag nrho.): Cov lej tiag tiag uas tsis yog qhov tseeb
Koj pom tseeb yuav tsum xaiv qhov taw qhia uas hloov xim kom ze li sai tau rau qhov sib npaug ntawm qhov sib npaug. Nws txawv ntawm titration mus rau titration. Daim duab tom ntej no qhia txog pHcurve rau kev ntxiv cov kua qaub uas muaj zog rau lub hauv paus muaj zog. Superimposed ntawm itare cov pH ntau rau methyl txiv kab ntxwv thiab phenolphthalein
Cytosol. thaj tsam ntawm eukaryotic cell uas nyob rau hauv lub plasma membrane thiab sab nraum lub organelles. cytoplasm. thaj tsam ntawm cov cell uas muaj nyob rau hauv lub plasma membrane. metabolism
Nyob rau hauv sib piv, metalloids yog nkig dua piv nrog cov hlau uas yog ductile thiab malleable (yog tias khoom). Hauv kev sib piv nrog cov hlau tsis yog hlau, metalloids tuaj yeem yog cov insulators thiab nkig (yog tias cov hlau tsis yog hlau). Hauv qhov sib piv, cov hlau tsis yog hlau tsis zoo li cov hlau nplaum thiab feem ntau ntawm cov hlau tsis yog gasses