2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv cov kab mob feem ntau, cov qauv intracellular ntau tshaj plaws yog cov ribosome uas yog qhov chaw ntawm cov protein synthesis nyob rau hauv tag nrho cov kab mob nyob. Tag nrho cov prokaryotes muaj 70S (qhov twg S=Svedberg units) ribosomes thaum eukaryotes muaj 80S ribosomes loj hauv lawv cytosol. Lub 70S ribosome yog tsim los ntawm 50S thiab 30S subunits.
ribosomes pom nyob rau hauv cov kab mob nyob qhov twg?
Hauv cov kab mob, ribosomes yog synthesized hauv cytoplasm los ntawm kev hloov pauv ntawm ntau lub ribosome gene operons. Hauv eukaryotes, cov txheej txheem yuav siv ob qho tib si hauv cov cell cytoplasm thiab hauv cov nucleolus, uas yog ib cheeb tsam hauv lub cell nucleus.
Cov kab mob puas muaj 60S ribosomes?
Cov kab mob ribosomes yog tsim los ntawm ob lub subunits nrog ntom ntawm 50S thiab 30S, as opposed to 60S thiab 40S hauv eukaryotic cells.
Vim li cas ribosome muaj nyob rau hauv cov kab mob cell?
Ribosomes - Ribosomes yog microscopic "factories" pom nyob rau hauv tag nrho cov hlwb, nrog rau cov kab mob. Lawv txhais cov caj ces los ntawm cov lus molecular ntawm nucleic acid rau cov amino acids-lub tsev thaiv ntawm cov proteins.
S hauv 70S thiab 80S ribosome yog dab tsi?
Tsab ntawv 'S txhais tau tias Svedberg's Unit thiab nws sawv cev rau sedimentation coefficient; hauv ribosome.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Cov tshuaj kab kab mob puas yuav ua haujlwm rau cov kab mob sib kis?
Bayer Drontal Broad Spectrum Dewormer zoo tshem tawm ntau hom kab mob hauv plab nrog rau cov kab mob tapeworms, hookworms, thiab roundworms. Kuv puas tuaj yeem kho kuv tus miv rau kab kab kab kab thiab kab kab sib chaws tib lub sijhawm?
Nyob hauv cov kab mob cov qauv no ua rau cov tshuaj tiv thaiv kab mob?
Cov qauv thiab kev ua haujlwm ntawm txheej LPShauv cov kab mob gram tsis zoo muab qhov cuam tshuam rau qee hom molecules. Qhov no ua rau cov kab mob hauv lub cev tsis muaj zog rau qee pawg ntawm cov tshuaj tua kab mob loj [28]. Cov kab mob ua rau cov tshuaj tiv thaiv kab mob li cas?
Dab tsi yog cov kab mob photosynthetic pom nyob rau hauv cov ntaub so ntswg ntawm coral?
Feem ntau cov pob zeb tsim cov pob zeb muaj cov photosynthetic algae, hu ua zooxanthellae, uas nyob hauv lawv cov ntaub so ntswg. Corals thiab algae muaj kev sib raug zoo. Lub coral muab cov algae nrog kev tiv thaiv ib puag ncig thiab cov tebchaw uas lawv xav tau rau photosynthesis.
