Eukaryotic Cell Labeled Diagram Game Quiz - A eukaryotic cell contains a membrane-bound nucleus and several organelles such as mitochrondia and ribosomes. Plants, animals, fungi and protozoa are composed of eukaryotic cells, and are called eukaryotes.
While prokaryotes and eukaryotes both possess parts like the cellular membrane, ribosomes and the cytoplasm, eukaryotic cells are tens to hundreds of times larger than prokaryotic cells.
The nucleus containing the DNA of a eukaryotic cell is surrounded by a double-membrane structure called the nuclear membrane. The rest of the cell’s organelles are similarly enclosed in plasma membranes.
Examples of a eukaryotic cell’s organelles include the mitochrondia, which generate the cell’s energy, ATP; endoplasmic reticulum, which produce lipids and modify proteins; lysosomes, which digest various substances; and Golgi apparatuses, which package and transport substances throughout the cell.
Eukaryotic cells can also differ in structure. For instance, plant cells possess a rigid cell wall, a light-capturing organelle called the chloroplast, and substance-storing vacuoles that are absent in animal cells.
Some cells can be specialized for various functions; red blood cells in mammals do not contain DNA, a nucleus, or organelles. This allows the insides of a red blood cell to carry much more oxygen within hemoglobin molecules. Furthermore, as red blood cells are unable to perform protein synthesis, viruses which enter the cell cannot create more of themselves and simply die.
This eukaryotic cell labeled diagram is designed to enrich your knowledge of eukaryotic cellular structure, function and activities and assist in distinguishing eukaryotic cells from prokaryotic cells.
Eukaryotic cells are the more complex, "higher-order" cells found in organisms such as animals, plants, fungi, and protists. These cells are characterized by the presence of a true nucleus, which is separated from the cytoplasm by a nuclear envelope. The nucleus contains the cell's genetic material in the form of DNA, which is organized into chromosomes.
In addition to the nucleus, eukaryotic cells also contain a variety of other membrane-bound organelles, each with their own specific functions. For example, mitochondria are the cell's powerhouses, responsible for producing energy through the process of cellular respiration. The endoplasmic reticulum and Golgi apparatus are involved in the synthesis and transport of proteins and other molecules. Ribosomes, which can be found attached to the endoplasmic reticulum or floating freely in the cytoplasm, are the cell's protein factories, responsible for synthesizing proteins based on the instructions contained in the cell's DNA.
Other important subcellular structures found in eukaryotic cells include lysosomes, which contain enzymes that break down waste materials and cellular debris, and peroxisomes, which are involved in a variety of metabolic processes, including the breakdown of fatty acids and the detoxification of harmful substances.
Eukaryotic cells are capable of carrying out a wide range of functions, including metabolism and energy production, protein synthesis and secretion, DNA replication, and responding to stimuli from the external environment. They are also capable of undergoing cell division through the process of mitosis, which allows for the growth and repair of tissues.
Overall, the complex structure and varied functions of eukaryotic cells allow for the diversity of life that we see in the world around us.