顿挫感染（）。 A: B: BiosynthEsis C: D: ABortivEinfECtion E: F: DEfECtivEvirus G: H: inACtivAtion I: J: suhvins

In fatty acid biosynthesis, which compound transports acetyl groups from the mitochondria into the cytoplasm？（） A: Coenzyme A B: Carnitine C: ACP D: Citric acid

‍Generally speaking, effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis are collectively known as chemical drugs.‎

Generally speaking, effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis are collectively known as chemical drugs. A: 正确 B: 错误

中国大学MOOC: Generally speaking, effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis are collectively known as chemical drugs.

中国大学MOOC: Effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis, are collectively known as chemical drugs.(Which translation is right?)

Human body cannot synthesize Vitamin C because the body lacks an enzyme which is needed at the end of the vitamin C biosynthesis pathway, so we must uptake Vitamin C from foods or take some additional supplements.

Which of the following statements are correct ( ) A: In eukaryotes, a gene can encode different proteins, but a mature mRNA chain encodes only one protein. B: The function of the promoter is affected by both the DNA sequence and its conformation. C: TFs help RNA polymerase recognize the promoter. D: In DNA biosynthesis, semi-reserved replication and semi-discontinuous replication refer to the same concept.

Effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis, are collectively known as chemical drugs. （Which translation A: 从天然矿物、动植物中提取的有效成分，以及经过化学或生物合成而制得的药物，统称为化学药物。 B: 化学药物是取自天然矿物、动植物中的有效成分，这些成分可以通过化学或生物合成而制得。 C: 化学药物是从天然矿物、动植物中分离出的有效成分经化学或生物合成后而制得的药物。 D: 化学药物是从天然矿物、动植物中分离出的有效成分经化学或生物处理后而制得的药物。

Effective ingredients extracted from natural minerals, animals or plants, as well as drugs obtained by chemical synthesis or biosynthesis, are collectively known as chemical drugs.(Which translation is right?) A: 从天然矿物、动植物中提取的有效成分，以及经过化学或生物合成而制得的药物，统称为化学药物。 B: 化学药物是取自天然矿物、动植物中的有效成分，这些成分可以通过化学或生物合成而制得。 C: 化学药物是从天然矿物、动植物中分离出的有效成分经化学或生物合成后而制得的药物。 D: 化学药物是从天然矿物、动植物中分离出的有效成分经化学或生物处理后而制得的药物。