What is the difference between the light microscope, scanning electron microscope and transmission electron microscope? Define the cell theory.
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Ch 6 – The Cell
- What is the difference between the light microscope, scanning electron microscope and transmission electron microscope?
- Define the cell theory.
- Give examples of eukaryote cells.
- What is the difference between prokaryotes and eukaryotes?
- List all the organelles of a eukaryote cell with their function.
- Describe the detailed structure of all eukaryote organelles.
- What is the difference between a plant cell and animal cell?
- List the organelles that are part of the endomembrane system.
- Describe how the organelles of the endomembrane system function as a factory of the cell.
- Describe the structure of the mitochondria and chloroplast.
- Which organelle has one layer of membrane?
- Which organelle has more than one layer (state how many layers) of membrane?
- List the 3 types of cytoskeleton. Give examples for each type.
- Describe the function of each type of cytoskeleton.
Book: Biology (Campbell)
11 edition
Urry. Cain. Wasserman. Minorsky. Reece
Note: According to bartleby guidelines only first question is to be answered. So please upload others separately.
Cell:
The fundamental structural and operational unit of all living things is the cell. Each cell has a cytoplasm that is surrounded by a membrane and is home to a variety of macromolecules, including proteins, DNA, and RNA, as well as numerous tiny molecules that are nutrients and metabolites. The phrase is derived from the Latin word cellula, which means "little apartment."
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