fbpx

😤 Gas exchange in mammals and plants

In complex, multicellular organisms cells organise themselves in such a way that enables a greater structure and function. Cells differentiate into specific structures and functions, and organise themselves as such into tissues. The different tissues can then form organs with yet a higher level of structure and function, and organs can work together in certain broad areas of the organism’s structure and function by taking part in organ systems.

 

 

Isn’t that grand? Let me tell you a little secret. For anyone who’s seen the film Life starring our first Martian life form called Calvin, there is way that cells can associate the way Calvin does. In this case, cells aren’t at all differentiated to do different things in tissues, organs, etc. but instead maintain their single cell status among equal single cells. They associate at a higher level to produce certain greater effects, and can even look as if the structure were multicellular or complex, but it isn’t really, or at least it isn’t in the same way it is for true multicellular organisms.

 

This is the case for algae as well as for…

🏆 Read 500+ topics for all 6 UK exam boards 🏆

📝 Enter now to claim your FREE 3-day trial and find answers to all your revision topics 📝
✔️ Just £3.49/month after that ✔️ Scholarships & teacher plans available ✔️ Cancel anytime

You explain everything so simply! 🙂 -SecretDuck on The Student Room
Just a huge thank you for spending your time helping others. I love your site and I’m seriously very grateful. No word of a lie -Neuron13 on The Student Room
Thank you for making all the content btw! -Serena Kutty on YouTube
Good topic notes and cool videos. I’ll definitely recommend it to my students. -Seema Sehgal (AQA Examiner and Biology Teacher) on LinkedIn