6. Respiration Studies in Isolated Mitochondria（在分离线粒体中研究呼吸作

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6. Respiration Studies in Isolated Mitochondria（在分离线粒体中研究呼吸作用）Cellular respiration c

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The phases in cellular respiration? 555ooo1年前1: zchangjing 共回答了19个问题 | 采纳率84.2%

Glycolysis糖酵解
citric acid cycle (Krebs)三羟基循环
the electron transport 电子转移

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阅读理解. A.Control of respiration 阅读理解. A.Control of respiration B.Basic tips for preserving cut flowers C.Role of respiration D.Most important aspect of flower care E.Need for clean water F.Ways of stopping respiration 1.( ) While everybody enjoys fresh cut flowers around his house,few people know how to keep them for as long as possible.This may be done by keeping in mind a few simple facts.The key to keeping fresh cut flower for a week or more without preservatives ( which contain biocides (杀虫剂) that kill bacterial and fungus) is to keep the water fresh and the stems free of air pockets so they can continue to draw up water. 2.( ) An important thing to remember about cut flowers is that they are sensitive to temperature.For example, studies have shown that cut carnations retain their freshness eight times longer when kept at 12℃ than when kept at 26℃.Keeping freshly harvested flowered at the right temperatures is probably the most important aspect of flower care. 3.( ) The process by which flowers consume oxygen and produce carbon dioxide,called respiration (呼吸), supplies the energy the flower needs to give the flower its shape and color.The making of seeds also depends on this energy.While all living things respire,flowers have a high level of respiration.A result of all this respiration is heat,and for flowers the level of heat relative to the mass of the flower is very high.Respiration also brings about the eventual death of the flower.Thus the greater the level of respiration,the sooner the flower dies. 4.( ) How,then,to control the speed at which flowers die?By controlling respiration.How is respiration controlled?By controlling temperature,we know that respiration produces heat,but the reverse (反面) is also true.Thus by keeping low temperatures,respiration is reduced and the cut flower will age more slowly. 5.( ) Another vital factor in keeping cut flowers is the quality of the water in which they are placed.Flowers find it difficult to "drink" water that is dirty or otherwise polluted.Even when water looks and smells clean, it almost certainly contains harmful substances that can endanger the flowers.To rid the water of these unwanted substances,chlorine bleach (含氯漂白剂) can be used in small quantities.It is recommended that 15 drops of chlorine bleach be added to each liter of water.The water and solution (溶液) should also be replaced each day. 碎云翠1年前1: 美丽的花瓣雨共回答了18个问题 | 采纳率94.4%

1-5:BDCAE

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Why Mammals with a high rate of respiration need to have a h Why Mammals with a high rate of respiration need to have a high heart rate. 只想和他在一起1年前4: hbctt 共回答了17个问题 | 采纳率88.2%

Because high heart beating rate can speed up the blood circulation in order to carry more oxygen for the body.

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阅读理解。 A. Control of respiration

阅读理解。

A. Control of respiration
B. Basic tips for preserving cut flowers C. Role of respiration
D. Most important aspect of flower care E. Need for clean water
F. Ways of stopping respiration

1. ( )
While everybody enjoys fresh cut flowers around his house, few people know how to keep them for as
long as possible. This may be done by keeping in mind a few simple facts. The key to keeping fresh cut
flower for a week or more without preservatives ( which contain biocides (杀虫剂) that kill bacterial and
fungus) is to keep the water fresh and the stems free of air pockets so they can continue to draw up water.
2. ( )
An important thing to remember about cut flowers is that they are sensitive to temperature. For example,
studies have shown that cut carnations retain their freshness eight times longer when kept at 12℃ than when
kept at 26℃. Keeping freshly harvested flowered at the right temperatures is probably the most important
aspect of flower care.
3. ( )
The process by which flowers consume oxygen and produce carbon dioxide, called respiration (呼吸),
supplies the energy the flower needs to give the flower its shape and color. The making of seeds also depends
on this energy. While all living things respire, flowers have a high level of respiration. A result of all this
respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high. Respiration
also brings about the eventual death of the flower. Thus the greater the level of respiration, the sooner the
flower dies.
4. ( )
How, then, to control the speed at which flowers die? By controlling respiration. How is respiration
controlled? By controlling temperature, we know that respiration produces heat, but the reverse (反面) is
also true. Thus by keeping low temperatures, respiration is reduced and the cut flower will age more slowly.
5. ( )
Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers
find it difficult to "drink" water that is dirty or otherwise polluted. Even when water looks and smells clean,
it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these
unwanted substances, chlorine bleach (含氯漂白剂) can be used in small quantities. It is recommended that
15 drops of chlorine bleach be added to each liter of water. The water and solution (溶液) should also be
replaced each day.

**就这样了1年前1: 英熊无敌共回答了23个问题 | 采纳率91.3%

1-5: BDCAE

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6. Respiration Studies in Isolated Mitochondria（在分离线粒体中研究呼吸作

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