Excretory system in Human Body | function and organs
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- Опубліковано 13 лис 2015
- Excretory system in Human Body
Cells produce water and carbon dioxide as by-products of metabolic breakdown of sugars, fats, and proteins. Chemical groups such as nitrogen, sulfur, and phosphorous must be stripped, from the large molecules to which they were formerly attached, as part of preparing them for energy conversion. The continuous production of metabolic wastes establishes a steep concentration gradient across the plasma membrane, causing wastes to diffuse out of cells and into the extracellular fluid.
Single-celled organisms have most of their wastes diffuse out into the outside environment. Multicellular organisms, and animals in particular, must have a specialized organ system to concentrate and remove wastes from the interstitial fluid into the blood capillaries and eventually deposit that material at a collection point for removal entirely from the body.
Excretory systems regulate the chemical composition of body fluids by removing metabolic wastes and retaining the proper amounts of water, salts, and nutrients. Components of this system in vertebrates include the kidneys, liver, lungs, and skin.
Not all animals use the same routes or excrete their wastes the same way humans do. Excretion applies to metabolic waste products that cross a plasma membrane. Elimination is the removal of feces.
Nitrogen wastes are a by product of protein metabolism. Amino groups are removed from amino acids prior to energy conversion. The NH2 (amino group) combines with a hydrogen ion (proton) to form ammonia (NH3).
Ammonia is very toxic and usually is excreted directly by marine animals. Terrestrial animals usually need to conserve water. Ammonia is converted to urea, a compound the body can tolerate at higher concentrations than ammonia. Birds and insects secrete uric acid that they make through large energy expenditure but little water loss. Amphibians and mammals secrete urea that they form in their liver. Amino groups are turned into ammonia, which in turn is converted to urea, dumped into the blood and concentrated by the kidneys.
#excertorysystem #urinarysystem
Its like two maths teacher arguing that whos method is right 😂
😂😂😂😂😂😂😂😂😂
😂😂
Yes
😅😅😅😂😂😂
Semmma,🤣🤣🤣🤣🤣🤣🤣🤣
Brilliant, you're geniuses you're saving us so much time. I learned 2 different lesson at the same time . Thank you
me to man now im gona subscribe this for time saving
🤣
😂😂🤣🤣🤣
Yup bone n sleep n heart respiratory all by.. at a time study
What a talent... Two chapters in same time, you made me understand it excretory system and the bone chapter😂😂😂The teachers are confused which chapter is more important for us right now so they started arguing😂
What a talent. Two chapters in same time, my head felt like it was going to blow 🤣🤣
First voice is for normal people
Second one is for deaf people
😀
i definitely wont recommend anyone to learn through this video...but the animation was 🔥 🔥
The two voices playing simultaneously made it very easy for me to understand the excretory organs and their functions. Thank you sir, you explain it like no other.
Sound problem!
Not clear voice, Plzz make it again otherwise nice vedio ❤
good information in the description. please consider fixing/editing video for future students. this is valuable information and many people will get frustrated and immediately leave the page/video. i almost did. thank you
i was listening to it and couldnt understand anything and i looked in the comments like IM NOT THE ONLY ONE
two voices :3
double voice problem but nice video
I thought that my earphone is not working properly
😂SAME HERE
You are making such a good video then why these two voices? I was in preparation of my board exam and for gaining extra knowledge on this concept I came to see such videos. But you just disappointed, even though concepts are clear this video makes more doubts
Information in description is useful...
But audio arrangement is poor
Sound errors make it difficult to understand sir
I cannot stop Laughing right now .... !!!! ROFL
why are there two voices
I think they are fighting with each other 😜😜
🤣🤣🤣
I can't understand this video 😵 #sound problem# two sounds we're mixed in the video😧😩😩
I think I can hear ur mom in the background taking about taking a crap...
Two voice🙄👍👍👍❤️❤️❤️
Two annoying uncles both helping junior with his homework.
And won't take no for an answer.
Dual nature of sound 😂😂😂😂😂
😂😂😂
Hey, what's your problem man?
It seem like they are fighting ㅋㅋㅋ
Body or atmaa dono alag alag bol rhi h..
Kisi ek ko chuup krao.. Kuch samaj ni aaya kya bol rha h uncle 🤪😇...
@creative learning
You're really creating a new way of learning 😂😂
But When listening to the Audio it sounds like both are fighting for teaching their lessons 😅
Time management and being Multi taskery😃
we can't understand
Really creative. ....😜😂
Sound problem can't understand
I thought my phone speaker is dead but no this video is dead
I can't understand what you are saying.
very nice creative learning ;0
What is this ...😅😅😅🤣🤣🤣🤣 may be sound problem when I hear this sound then I scared 😱😱😡😡😡😤😤
Why using double sound so irritating plz correct sounds then it will be better animation
💖💖💖💖
I am confused
What they want to tell us😂😂 i cant understand its looking like two teachers are arguing 😂😂
Why this kolaveri??
D
wt is thia two voice cant hear
Lol 🤣🤣 ...
Sound problem. .
What is that more dislikes than likes woh! This is rare I think you should remove video because two voices are there
Had to mute this video because of the stupid echo! Subtitles were useless. Unfortunate because the animation is really good, the account probably took it from a different account and didn’t create it themselves
The video audio is not proper
Cannot understand at all!
sound problem
Can't hear
two explanation
? Ye Kya h ., is 😕😕😤😤😤😵😵😧😵😧🤕
Double sounds is observered
Okk
😂🤣😂🤣
sound problem :(
Why are 2 voice ?
Two sounds🔊
Koi ek bolo 😖😖😖😖
😐😐🤨🤨
Like news war
Ok
I could not understand everything 😅
Lol😂😂
Two tetcher ohhh Iam not understand from them ,and lcan't listen any thing 😢😂😂😂😂
What was this?..... Kuch bhi matlab😂😂😂
that is cursed.
Haaaahaaas
Lol 🤣🤣🤣
🙄🤣no man
Bad
baklol
Waste of time, sound problem,can't understand anything, not good
Waste
time waste
It's just stupid
😤😤👎👎👎👎👎👎👎
Double voice you idiot
Sound problem