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Compare the cellular organisation of animal and plant cells.
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_60/2448989/524972_31537.gif)
In HKDSE Biology examination, your will asked to draw animal cell as well as plant cell with labels under experimental question (SIMPLE VERSION)❗️ ❕
The cellular organisation of animal cell 👇🏻
Animal cell 🐶
![Animal cell cellular organization Animal cell cellular organization](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/2448989/645751_428631.png)
👆🏻This is a labelled diagram of animal cell.
1. Cell membrane
- Cell membrane is the boundary of cell that mentioned in previous blog.
2. Cytoplasm
- Cytoplasm is a jelly like fluid that give shape to cell and it assists the cell organelles to be placed well inside the cell.
- Cytoplasm provide a medium for metabolic activity to take place since it consist of enzyme that speed up metabolism.
3. Nucleus
- Nucleus contain genetic material deoxyribonucleic acid (DNA) which give instruction to protein synthesis as well as control the activity of the entire cell.
- DNA coiled around histone to form chromosome which is the form of genetic information in nucleus .
4. Endoplasmic reticulum
- Rough endoplasmic reticulum - with attachment of ribosome
- Rough endoplasmic reticulum with the function of protein synthesis.
- Smooth endoplasmic reticulum - without attachment of ribosome
- Smooth endoplasmic reticulum with the function of lipid, steroid as well as hormone synthesis. Further, toxic substance can be eliminated as well.
5. Mitochondrion
- Mitochondria provide a medium for respiration to take place. Therefore, energy in form of ATP will be generated in mitochondria.
The cellular organisation of plant cell 👇🏻
Plant cell 🌱
![Plant cell cellular organization Plant cell cellular organization](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/2448989/956706_680847.png)
👆🏻This is a labelled diagram of plant cell.
1. Chloroplast
- Chloroplast is oval in shape and with double membrane.
- Chloroplast can be only found in green plant and it is where photosynthesis take place.
2. Cell wall
- Cell wall is the tough outer layer of plant cell which provide strength and turgidity to plant cell.
- As mentioned in previous blog, cell wall is mainly made up of cellulose.
3. Vacuole
- Vacuole is unique in plant cell and located at the centre.
- Vacuole consist of fluid, ions and other molecules enclosed by plasma membrane.
- Vacuole maintain the turgor pressure in plant that the plant can be stand upright.
Comparison between animal cell and plant cell ⚔️
- Both animal cell and plant cell consist of cell membrane, cytoplasm, nucleus, endoplasmic reticulum, mitochondrion.
- The uniqueness of plant cell is that it consist of cell wall, chloroplast and vacuole which animal cell doesn't have.
That's the end of this topic 👏🏻
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_60/2448989/748607_166898.gif)
References
- Thomas, B. & Chris, H. (2013) Hong Kong DSE Biology Critical Guide. Yellowreef Limited.
- Editors, B. D. (2019, June 19). Animal Cell. Retrieved from https://biologydictionary.net/animal-cell/
- Editors, B. D. (2019, June 14). Plant Cell. Retrieved from https://biologydictionary.net/plant-cell/