10 Questions
What are the two major parts of a typical cell as seen by the light microscope?
Nucleus and cytoplasm
What separates the nucleus from the cytoplasm?
Nuclear membrane
What is the principal fluid medium of the cell?
Water
What are the two types of proteins found in most cells?
Structural proteins and functional proteins
What do structural proteins mainly form within the cell?
Long filaments
What is the main function of fibrillar proteins found extracellularly?
To provide structural support in tissues such as collagen and elastin fibers.
How do functional proteins differ from fibrillar proteins?
Functional proteins are mainly enzymes of the cell and are often mobile in the cell fluid, whereas fibrillar proteins provide structural support.
Give an example of a specific function of enzymes in the cell.
Catalyzing chemical reactions like breaking down glucose and producing energy for cellular functions.
Where are many of the enzymes found in the cell located?
Many enzymes are adherent to membranous structures inside the cell.
What is the specific role of enzymes in the cellular process of breaking down glucose?
Enzymes catalyze the splitting of glucose into its component parts and then combine these parts to form carbon dioxide and water, providing energy for cellular function.
Learn about the typical organization of a cell, distinguishing between the nucleus and cytoplasm, and the roles of nuclear membrane and plasma membrane. Understand the significance of water as the principal fluid medium in cells.
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