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1题目生物膜将真核细胞分隔成不同的区室,使得细胞内能够同时进行多种化学反应,而不会互相干扰。下列叙述正确的是()A.细胞核是mRNA合成和加工的场所B.高尔基体是肽链合成和加工的场所C.线粒体将葡萄糖氧化分解成CO_2和H_2O D.溶酶体合成和分泌多种酸性水解酶答案A2分析在细胞核内DNA首先转录出相应的前体RNA,通过加工,剪切掉内含子转录出的片段后,加工成为成熟的mRNA,所以A选项正确;核糖体是肽链合成的场所,新生肽链首先进入内质网进行初步加工,之
1 Topic Biofilm separates eukaryotic cells into different compartments, enabling multiple chemical reactions in a cell simultaneously without interfering with each other. The following statement is correct () A. Nucleus is the mRNA synthesis and processing sites B. Golgi is the peptide synthesis and processing sites C. Mitochondria oxidizes glucose into CO_2 and H_2O D. Lysosome synthesis and secretion of a variety of A2 acid hydrolysis enzyme analysis of DNA in the nucleus first transcribed the corresponding precursor RNA, processed by cutting the introns transcribed fragments processed into mature mRNA, so the A option is correct; ribosomes are the peptide chain Synthetic sites, nascent peptides first enter the endoplasmic reticulum for initial processing