Biology
Cell organization v. homeostasis
-cell homeostasis is where there is appropriate internal environment. The plasma membrane forms a cytoplasmic compartment, which maintains homeostasis by allowing cells to exchange materials with their environment. Organelles are internal structures which carry out specific functions which are often highly complex.
Electron microscopes have superior resolving power, which is often helpful in understanding the anatomy of cells.
Prokaryotes - have plasma membrane, little internal organization, usually cell wall, ribosomes, may have a propeller like flagella.
Eukaryotes- membrane enclosed nucleus, and a variety of organelles.
Three key functions of cell membranes :
Proteins- hugely important in cell membranes.
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- Animal Eukaryotic Cell Components: Structure And Function
I posted a picture of the eukaryotic animal cell earlier, but it was simply a labeled diagram. Here we will go into each of the major parts of the cell, as well as each organelle's function, not to mention the overall structure of the cell. As the...
- Membrane Systems
Endoplasmic reticulum (ER) consists of a series of membranes creating channels within the cytoplasm, which are continuous with the nuclear membrane. They also form sheets that enclose cellular spaces called cisternae. ER provides a large surface area...
- Eukaryote Vs Prokaryote
Biology EssayMichael McDonald11/17/14Period 7 Cells are categorized into two groups, Prokaryotic and Eukaryotic. The two cells are similar in some ways , but also they are different in others. One way they are similar is that they both have DNA which...
- Prokaryotic Cells Vs. Eukaryotic Cells
Prokaryotic Cells Prokaryote is a cell or an organism that lacks a nucleus and other membrane enclosed organelles and most of their DNA is a single circular molecule. All bacteria are prokaryotic cells. The word "prokaryote" means "before the nucleus"...
Biology
I'll karyote on homeostasis and organization further
Cell organization v. homeostasis
-cell homeostasis is where there is appropriate internal environment. The plasma membrane forms a cytoplasmic compartment, which maintains homeostasis by allowing cells to exchange materials with their environment. Organelles are internal structures which carry out specific functions which are often highly complex.
Electron microscopes have superior resolving power, which is often helpful in understanding the anatomy of cells.
Prokaryotes - have plasma membrane, little internal organization, usually cell wall, ribosomes, may have a propeller like flagella.
Eukaryotes- membrane enclosed nucleus, and a variety of organelles.
Three key functions of cell membranes :
- divide cells into compartments with specialized activities, in small areas of cytoplasm
- energy storage and conversion (electron transport chains, concentration gradients)
- concentration of molecules
Proteins- hugely important in cell membranes.
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- Animal Eukaryotic Cell Components: Structure And Function
I posted a picture of the eukaryotic animal cell earlier, but it was simply a labeled diagram. Here we will go into each of the major parts of the cell, as well as each organelle's function, not to mention the overall structure of the cell. As the...
- Membrane Systems
Endoplasmic reticulum (ER) consists of a series of membranes creating channels within the cytoplasm, which are continuous with the nuclear membrane. They also form sheets that enclose cellular spaces called cisternae. ER provides a large surface area...
- Eukaryote Vs Prokaryote
Biology EssayMichael McDonald11/17/14Period 7 Cells are categorized into two groups, Prokaryotic and Eukaryotic. The two cells are similar in some ways , but also they are different in others. One way they are similar is that they both have DNA which...
- Prokaryotic Cells Vs. Eukaryotic Cells
Prokaryotic Cells Prokaryote is a cell or an organism that lacks a nucleus and other membrane enclosed organelles and most of their DNA is a single circular molecule. All bacteria are prokaryotic cells. The word "prokaryote" means "before the nucleus"...