Excretion and the urinary system · 排泄和泌尿系统
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| excretion/ekˈskreʃn/ | 排泄 | pái xiè |
| kidneys/ˈkɪdniz/ | 肾脏 | shèn zàng |
| urea/juːˈrɪə/ | 尿素 | niào sù |
| urine/ˈjʊərɪn/ | 尿液 | niào yè |
| ureters/ˈjʊəretəz/ | 输尿管 | shū niào guǎn |
| bladder/ˈblædə/ | 膀胱 | páng guāng |
| urethra/jʊəˈriːθrə/ | 尿道 | niào dào |
| deamination/ˌdiːmɪˈneɪʃn/ | 脱氨基作用 | tuō ān jī zuò yòng |
Taking out the chemical rubbish
- Your body's reactions constantly make waste that would poison you if it built up.
- Removing this waste is excretion 排泄, and the kidneys 肾脏 are the body's main filter.
清除化学垃圾
- 你身体的反应不断制造如果积累会毒害你的废物。
- 移除这种废物是排泄(excretion),肾是身体的主要过滤器。
Urea is produced from the breakdown of excess: · 尿素由分解多余的以下哪种产生:
The liver makes urea from excess amino acids. · 肝从多余的氨基酸制造尿素。
Carbon dioxide is excreted by the: · 二氧化碳由以下哪个排泄:
CO₂ from respiration leaves via the lungs. · 来自呼吸作用的 CO₂ 经肺离开。
What needs removing
- Carbon dioxide (from respiration) — removed by the lungs.
- Urea 尿素 (from breaking down excess protein) — removed by the kidneys.
- Excess water and salts — also removed by the kidneys.
The kidneys make urine 尿液, which passes down the ureters 输尿管 to the bladder 膀胱 and out of the urethra 尿道
什么需要移除
- 二氧化碳(来自呼吸作用)——由肺移除。
- 尿素(urea,来自分解多余的蛋白质)——由肾移除。
- 多余的水和盐——也由肾移除。

肾制造尿,它沿输尿管流到膀胱并从尿道流出
Excretion and the kidneys · 排泄和肾
The kidneys clean the blood, removing urea and adjusting water, and make urine. · 肾清洁血液,移除尿素并调节水,并制造尿。
The organs that filter the blood to make urine are the: · 过滤血液以制造尿的器官是:
Kidneys filter blood and form urine. · 肾过滤血液并形成尿。
Put the urinary pathway in order. · 把泌尿途径按顺序排列。
Kidney → ureter → bladder → urethra. · 肾 → 输尿管 → 膀胱 → 尿道。
The urinary system
- The kidneys filter the blood, making urine.
- Urine flows down the ureters to the bladder, where it is stored, then out through the urethra.
A dialysis machine cleans the blood when the kidneys stop working
泌尿系统
- 肾(kidneys)过滤血液,制造尿(urine)。
- 尿沿输尿管(ureters)流到膀胱(bladder),在那里被储存,然后通过尿道(urethra)流出。

当肾停止工作时,一台透析机清洁血液
The breakdown of excess amino acids in the liver is called . · 肝中多余氨基酸的分解叫做。
Deamination produces urea. · 脱氨基产生尿素。
The liver's role
- The liver breaks down excess amino acids, making urea (this is deamination 脱氨基作用).
- The urea is carried in the blood to the kidneys to be removed.
Excretion removes waste from reactions, not undigested food. Urea and carbon dioxide are made by the body's own chemistry. Faeces (undigested food) leave by egestion, which is not excretion.
The kidneys filter the blood and make urine
肝的角色
- 肝分解多余的氨基酸,制造尿素(这是脱氨基,deamination)。
- 尿素在血液中被运到肾以被移除。
排泄移除来自反应的废物,而不是未消化的食物。 尿素和二氧化碳由身体自己的化学反应制造。粪便(未消化的食物)通过排遗离开,这不是排泄。

肾过滤血液并制造尿
You've got it
- excretion removes metabolic waste: CO₂ (lungs), urea and excess water/salts (kidneys)
- urinary system: kidneys → ureters → bladder → urethra
- the liver makes urea from excess amino acids (deamination)
你掌握了
- 排泄移除代谢废物:CO₂(肺)、尿素和多余的水/盐(肾)
- 泌尿系统:肾 → 输尿管 → 膀胱 → 尿道
- 肝从多余的氨基酸制造尿素(脱氨基)