Are human epithelial cells prokaryotic or eukaryotic?
This contrasts with the smaller, simpler cells of prokaryotes like bacteria. All eukaryotes have membrane-bound organelles, structures that work as sort of organs for the cells. This includes a large, membrane-bound nucleus, chromosomes and the Golgi apparatus, all found in both humans and onions.
As in all animal cells, the cells of the human cheek do not possess a cell wall. A cell membrane that is semi-permeable surrounds the cytoplasm. Unlike plant cells, the cytoplasm in an animal cell is denser, granular and occupies a larger space. The vacuole in an an animal cell is smaller in size, or absent.
- Human Cheek Epithelial Cells. The tissue that lines the inside of the mouth is known as the basal mucosa and is composed of squamous epithelial cells. These structures, commonly thought of as cheek cells, divide approximately every 24 hours and are constantly shed from the body.
- In class, we obtained cheek cells by scraping the inside of the mouth with a toothpick and then rubbing the toothpick on a drop of water with blue stain. The blue helps you see the cells which are normally a clear color. The virtual lab begins at the step where you place the slide on the microscope page.
- An onion cell is a plant cell, and a cheek cell an animal cell. The main differences between plant and animal cells are that plant cells have: Cellulose cell wall Large vacuole Chloroplasts (if the plant is green) Cellulose cell wall Large vacuole Chloroplasts (if the plant is green) from the inner lining of the mouth.
It is eukaryotic- this is fairly simple, as most multicellular organisms are eukaryotic. All that means is that it has membrane bound organelles (like the nucleus, chloroplast and mitochondria). Prokaryotes are generally single celled, like bacteria.
- In contrast to prokaryotic cells, eukaryotic cells are highly organized. Bacteria and Archaea are prokaryotes, while all other living organisms are eukaryotes. Amoebae are eukaryotes whose bodies most often consist of a single cell.
- They will compare these with cells from the aquatic plant, Elodea. They will be able to see common structures like the plasma membrane, cytoplasm and nucleus, as well as organelles specific to plants, such as chloroplasts in the Elodea cells.
- Examples of Eukaryotes. Just about every organism you're familiar with is a eukaryote. Single celled organisms like yeast, paramecia and amoebae are all eukaryotes. Grass, potatoes, and pine trees are all eukaryotes, as are algae, mushrooms, and tapeworms.
Updated: 21st October 2019