下图表示的是某植物的非绿色器官呼吸时O2的吸收量和CO2的释放量之间的相互关系其中线段XY=YZ，则在氧浓度为a时[]A．需氧呼吸比厌氧呼吸消耗的有机物多B．需氧呼吸比厌氧呼吸释-高二生物

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• 蔬菜、水果贮存时必须保持品质新鲜，保持原有的风味。目前人们常采用保鲜膜来保存食品，其原理是[]A．膜内食品与空气隔绝，阻止呼吸，有机物不再分解B．可降低蔬菜、水果的呼吸-高一生物
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• 把鼠肝细胞磨碎后高速离心，细胞匀浆分成a、b、c、d四层，其中往c层加入葡萄糖，没有CO2和ATP产生；可是加入丙酮酸后，马上就有CO2和ATP产生。c层必定含有的成分是①线粒体②核-高一生物
• 在a，b，c，d条件下，测得某植物种子萌发时二氧化碳和氧气体积变化的相对值如下表。若底物是葡萄糖，则下列叙述中不正确的是[]A．a条件下，呼吸产物除了二氧化碳外还有酒精B．-高三生物
• 下图表示生物体内呼吸作用的过程，图中a～d表示某种物质，①～⑤表示相关生理过程，据图回答：(1)①～⑤过程，能在人体细胞中进行的是_______；在线粒体中进行的是_________；在细胞-高一生物
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