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bundle sheath
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【医】 维管束鞘
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分类:
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详细解释:
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以下为句子列表:
英文: Bundle sheath The ring of parenchymatous or sclerenchymatous tissue, usually one cell thick, that surrounds the vascular bundle in an angiosperm leaf.
中文: 维管束鞘:在被子植物叶中,围绕维管束的通常是一层薄壁或厚壁细胞。
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英文: In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid, which is transported to the bundle sheath cells, where the carbon dioxide is released, then fixed by the enzyme ribulose bisphosphate carboxylase to form glyc
中文: 在叶肉细胞的叶绿体中二氧化碳与磷酸烯醇丙酮酸结合形成草酰乙酸,后被运到邻近的维管束鞘细胞,在那里二氧化碳被释放,后被核酮糖二磷酸羧化酶固定形成3-磷酸甘油酸,这是卡尔文的循环第一步。
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英文: The cells of the bundle sheath that surround the vascular tissues are large and contain specialized elongated chloroplasts that do not contain grana, but form starch grains.
中文: 它的特点为:围绕在维管组织外层的维管束薄壁细胞较大,并含有较大的叶绿体,这些叶绿体中不含基粒,但形成淀粉粒。
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