Table of Contents
What gives the cytoplasm strength?
A framework of protein scaffolds called the cytoskeleton provides the cytoplasm and the cell with structure. The cytoskeleton consists of thread-like filaments and tubules that criss-cross the cytoplasm. You can see these filaments and tubules in the cells in Figure 5.5.
What surrounds the cytoplasm?
plasma membrane: The semipermeable barrier that surrounds the cytoplasm of a cell. receptor: A protein on a cell wall that binds with specific molecules so that they can be absorbed into the cell.
What supports the organelle inside the cytoplasm?
The cytoskeleton is a group of fibrous proteins that provide structural support for cells, but this is only one of the functions of the cytoskeleton. Cytoskeletal components are also critical for cell motility, cell reproduction, and transportation of substances within the cell.
What protects the cytoplasm?
The cytoplasm and its contents are contained within a cell membrane, or cytoplasmic membrane. A rigid cell wall located exterior to the cytoplasmic membrane protects the bacterial cell.
What surrounds and protects a cell?
The outer lining of a eukaryotic cell is called the plasma membrane. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of proteins and lipids, fat-like molecules.
What gives the cytoplasm strength and flexibility?
Organelles
| A | B |
|---|---|
| Cytoskeleton | Internal protein framework of threadlike filaments and hollow tubes that give the cytoplasm flexibility and support; consists of microfilaments and microtubules |
| Cytosol | Intracellular fluid; contains dissolved nutrients, ions, proteins, and waste products |
What structure surrounds the cytoplasm in a bacterial cell?
Cell Wall
Cell Wall – Each bacterium is enclosed by a rigid cell wall composed of peptidoglycan, a protein-sugar (polysaccharide) molecule. The wall gives the cell its shape and surrounds the cytoplasmic membrane, protecting it from the environment.
Which structure surrounds the cytoplasm of the cell and separates the interior from the exterior?
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
What is the role of cytoplasm?
The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.
What surrounds a bacterial cell?
Cell Wall – Each bacterium is enclosed by a rigid cell wall composed of peptidoglycan, a protein-sugar (polysaccharide) molecule. The wall gives the cell its shape and surrounds the cytoplasmic membrane, protecting it from the environment.