Vsaka celica v tvojem telesu je kot majhno mesto z... Show more
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Updated Apr 21, 2026
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Funkcije organelov v celici
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Uvod v celične organele
Predstavljaj si celico kot dobro organizirano mesto. Vsak organel je kot posebna zgradba z lastno nalogo - nekje se proizvaja energija, drugje hrana, tretje mesto pa skrbi za transport.
Evkariontske celice (naše celice in celice rastlin) imajo pravo jedro in organele z membranami. To jih naredi veliko bolj organizirane od prokariontskih celic (bakterij), kjer vse prosto plava v citoplazmi.
Citoplazma je kot "mestni prostor" - vsa vsebina celice, kjer se organeli nahajajo in delujejo skupaj. Brez te sodelovanja celica ne bi mogla preživeti.
💡 Pomni: Organeli so kot "mali organi" v celici - vsak ima svojo specifično funkcijo!
Mitohondrij - celična elektrarna
Mitohondrij je tvoj glavni vir energije! Ta organel proizvaja ATP - molekule, ki so kot "baterije" za vse celične procese.
V mitohondrijih poteka celično dihanje. Ta proces razgradi glukozo s pomočjo kisika in sprosti energijo. Enostavna formula: Glukoza + O₂ → CO₂ + H₂O + ATP. Tako dobiš energijo za vse - od premikanja mišic do razmišljanja!
Mitohondrij ima dve membrani, notranja pa je nagubana v kriste. Več gub = večja površina = več energije. Logično, ne? V mišičnih celicah jih je zato ogromno.
⚡ Zanimivost: Brez mitohondrijev ne bi mogel dvigniti niti prsta - vse potrebuje energijo iz ATP!
Kloroplast - tovarna hrane (samo rastline!)
Kloroplasti so organeli, ki jih imajo samo rastline in alge. V njih poteka fotosinteza - čudovit proces, ki pretvarja sončno svetlobo v hrano.
Osnovna formula fotosinteze: CO₂ + H₂O + svetloba → Glukoza + O₂. Klorofil (zeleno barvilo) ujame svetlobo in jo uporabi za izdelavo glukoze. Zato so rastline zelene!
Kloroplasti imajo tilakoide, zložene v grane (kot kupčki kovancev). Tu se dogaja čarovnija fotosinteze. Rastline izvajajo tako fotosintezo (za hrano) kot celično dihanje (za energijo).
🌱 Pomembno: Fotosinteza in celično dihanje sta nasprotna procesa - produkti enega so reaktanti drugega!
Ribosomi in endoplazmatski retikulum
Ribosomi so kot tovarne beljakovin. Berejo navodila iz jedra in sestavljajo aminokisline v beljakovine. So majhni in nimajo membrane.
Grob endoplazmatski retikulum (gER) ima na sebi ribosome. Tu se obdelajo beljakovine, ki bodo izvožene iz celice ali vgrajene v membrane.
Gladki endoplazmatski retikulum (jER) nima ribosomov. Njegova naloga je sinteza maščob, razstrupljanje in shranjevanje kalcija. V jetrnih celicah te reši strupov!
🔧 Povezava: Vsi organeli sodelujejo - jedro pošlje navodila, ribosomi izdelajo beljakovino, ER jo obdela, vse pa poganja energija iz mitohondrijev!
Primerjava in ključni povzetek
Mitohondrij vs. Kloroplast - ne zamešaj! Mitohondrij (celično dihanje, ATP, ves čas) najdeš povsod. Kloroplast (fotosinteza, glukoza, potrebuje svetlobo) samo pri rastlinah.
Rastlinske celice imajo OBA - kloroplaste za hrano in mitohondrije za energijo. Živalske celice imajo samo mitohondrije.
Hiter pregled za test: Mitohondrij = elektrarna (ATP), Kloroplast = tovarna hrane (samo rastline), Ribosomi = tovarna beljakovin, gER = obdelava beljakovin, jER = maščobe in razstrupljanje.
🎯 Za uspeh: Vedno poveži zgradbo z funkcijo - nagubana membrana mitohondrija omogoča več energije!
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Funkcije organelov v celici
Vsaka celica v tvojem telesu je kot majhno mesto z različnimi "tovarnami" in "zgradbami" - to so organeli. Razumevanje njihovih funkcij ti pomaga razumeti, kako deluje življenje samo!
Uvod v celične organele
Predstavljaj si celico kot dobro organizirano mesto. Vsak organel je kot posebna zgradba z lastno nalogo - nekje se proizvaja energija, drugje hrana, tretje mesto pa skrbi za transport.
Evkariontske celice (naše celice in celice rastlin) imajo pravo jedro in organele z membranami. To jih naredi veliko bolj organizirane od prokariontskih celic (bakterij), kjer vse prosto plava v citoplazmi.
Citoplazma je kot "mestni prostor" - vsa vsebina celice, kjer se organeli nahajajo in delujejo skupaj. Brez te sodelovanja celica ne bi mogla preživeti.
💡 Pomni: Organeli so kot "mali organi" v celici - vsak ima svojo specifično funkcijo!
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Mitohondrij - celična elektrarna
Mitohondrij je tvoj glavni vir energije! Ta organel proizvaja ATP - molekule, ki so kot "baterije" za vse celične procese.
V mitohondrijih poteka celično dihanje. Ta proces razgradi glukozo s pomočjo kisika in sprosti energijo. Enostavna formula: Glukoza + O₂ → CO₂ + H₂O + ATP. Tako dobiš energijo za vse - od premikanja mišic do razmišljanja!
Mitohondrij ima dve membrani, notranja pa je nagubana v kriste. Več gub = večja površina = več energije. Logično, ne? V mišičnih celicah jih je zato ogromno.
⚡ Zanimivost: Brez mitohondrijev ne bi mogel dvigniti niti prsta - vse potrebuje energijo iz ATP!
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Kloroplast - tovarna hrane (samo rastline!)
Kloroplasti so organeli, ki jih imajo samo rastline in alge. V njih poteka fotosinteza - čudovit proces, ki pretvarja sončno svetlobo v hrano.
Osnovna formula fotosinteze: CO₂ + H₂O + svetloba → Glukoza + O₂. Klorofil (zeleno barvilo) ujame svetlobo in jo uporabi za izdelavo glukoze. Zato so rastline zelene!
Kloroplasti imajo tilakoide, zložene v grane (kot kupčki kovancev). Tu se dogaja čarovnija fotosinteze. Rastline izvajajo tako fotosintezo (za hrano) kot celično dihanje (za energijo).
🌱 Pomembno: Fotosinteza in celično dihanje sta nasprotna procesa - produkti enega so reaktanti drugega!
Sign up to see the contentIt's free!
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Ribosomi in endoplazmatski retikulum
Ribosomi so kot tovarne beljakovin. Berejo navodila iz jedra in sestavljajo aminokisline v beljakovine. So majhni in nimajo membrane.
Grob endoplazmatski retikulum (gER) ima na sebi ribosome. Tu se obdelajo beljakovine, ki bodo izvožene iz celice ali vgrajene v membrane.
Gladki endoplazmatski retikulum (jER) nima ribosomov. Njegova naloga je sinteza maščob, razstrupljanje in shranjevanje kalcija. V jetrnih celicah te reši strupov!
🔧 Povezava: Vsi organeli sodelujejo - jedro pošlje navodila, ribosomi izdelajo beljakovino, ER jo obdela, vse pa poganja energija iz mitohondrijev!
Sign up to see the contentIt's free!
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Improve your grades
Join milions of students
Primerjava in ključni povzetek
Mitohondrij vs. Kloroplast - ne zamešaj! Mitohondrij (celično dihanje, ATP, ves čas) najdeš povsod. Kloroplast (fotosinteza, glukoza, potrebuje svetlobo) samo pri rastlinah.
Rastlinske celice imajo OBA - kloroplaste za hrano in mitohondrije za energijo. Živalske celice imajo samo mitohondrije.
Hiter pregled za test: Mitohondrij = elektrarna (ATP), Kloroplast = tovarna hrane (samo rastline), Ribosomi = tovarna beljakovin, gER = obdelava beljakovin, jER = maščobe in razstrupljanje.
🎯 Za uspeh: Vedno poveži zgradbo z funkcijo - nagubana membrana mitohondrija omogoča več energije!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Most popular content in Naravoslovje
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Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user