Excretion In Humans
Gbogbo ọrọ náà
Your cells are constantly making waste. Respiration makes carbon dioxide, and breaking down spare protein makes a poisonous substance called urea. If these waste products built up they would harm you, so the body has organs whose job is to remove them: this is excretion.
In this lesson you will learn what the lungs and kidneys excrete, name the parts of the urinary system, and (for the extended curriculum) follow how a kidney nephron filters the blood and reabsorbs what the body needs. You will also see how the liver makes urea from spare amino acids and why removing it matters.
Ebumnobi
- State that carbon dioxide is excreted through the lungs
- State that the kidneys excrete urea and excess water and ions
- Identify in diagrams and images the kidneys, ureters, bladder and urethra
- [Supplement] Identify in diagrams and images the structure of the kidney, limited to the cortex and medulla
- [Supplement] Outline the structure and function of a nephron and its associated blood vessels, limited to: (a) the role of the glomerulus in the filtration from the blood of water, glucose, urea and ions (b) t he role of the nephron in the reabsorption of all of the glucose, some of the ions and most of the water back into the blood (c) the formation of urine containing urea, excess water and excess ions (details of these processes are not required)
- [Supplement] Describe the role of the liver in the assimilation of amino acids by converting them to proteins
- [Supplement] State that urea is formed in the liver from excess amino acids
- [Supplement] Describe deamination as the removal of the nitrogen-containing part of amino acids to form urea
- [Supplement] Explain the importance of excretion, limited to toxicity of urea
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Excretion In Humans. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which substance is excreted by the lungs? A. urea B. carbon dioxide C. excess ions D. glucose Answer: B
- Which tube carries urine from a kidney to the bladder? A. urethra B. ureter C. renal vein D. renal artery Answer: B
- Urea is made in the: A. kidney B. bladder C. liver D. lungs Answer: C
- In a healthy person, which substance is completely reabsorbed in the nephron? A. urea B. excess ions C. glucose D. water (all of it) Answer: C
- Deamination is the removal of the nitrogen-containing part of: A. glucose B. amino acids C. fatty acids D. glycogen Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Excretion In Humans? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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