PLEASE ANSWER ALL OF THEM 1)Many single-celled eukaryotic organisms that live in
ID: 218947 • Letter: P
Question
PLEASE ANSWER ALL OF THEM
1)Many single-celled eukaryotic organisms that live in aquatic environments propel themselves through the water by the motion of short BLANK or long BLANK that are composed of microtubules.
2)
Adherens junctions
Desmosomes
Tight junctions
Gap junctions
Plasmodesmata
Beltlike complex composed of cadherins, that attaches a band of actin microfilaments to the plasma membrane. The cadherins of one cell attaches to the cadherins in an adjacent cell to establish a physical connection.
Buttonlike point of adhesion that holds the plasma membranes of adjacent cells together using cadherins and intermediate filaments.
Band of interconnected membrane proteins that prevents the movement of substances between cells and provide an effective boundary. Substances have to use cellular transport mechanisms to move through the cells.
Found in animals - a set of membrane proteins are arranged in a ring and connect to a similar ring of proteins in the membrane of another cell that permits material to pass directly from the cytoplasm of one cell to the cytoplasm of another.
Found in plants - the plasma membranes of two connected cells are continuous and permits materials to pass directly from the cytoplasm of one cell to the cytoplasm of another.
3)Describe the three ways cells can move and give an example of each.
4)In plants the extracellular matrix takes the form of the [BLANK], which provides the support needed by individual cells and results in turgor presure.
5)In animals, the shape of cells is determined and maintained by structural protein networks in the cytoplasm called the BLANK . In plants, the BLANK , a meshwork of proteins and polysaccharides outside the cell, provides both a mechanism for cells to adhere to one another and structural support that maintains their shape.
6)A [BLANK] is a region in the cytoplasm, consisting of cell adhesion molecules and other cytosolic proteins, where a cell makes contact with and adheres to another cell or the extracellular matrix.
- A. B. C. D. E.Adherens junctions
- A. B. C. D. E.Desmosomes
- A. B. C. D. E.Tight junctions
- A. B. C. D. E.Gap junctions
- A. B. C. D. E.Plasmodesmata
A.Beltlike complex composed of cadherins, that attaches a band of actin microfilaments to the plasma membrane. The cadherins of one cell attaches to the cadherins in an adjacent cell to establish a physical connection.
B.Buttonlike point of adhesion that holds the plasma membranes of adjacent cells together using cadherins and intermediate filaments.
C.Band of interconnected membrane proteins that prevents the movement of substances between cells and provide an effective boundary. Substances have to use cellular transport mechanisms to move through the cells.
D.Found in animals - a set of membrane proteins are arranged in a ring and connect to a similar ring of proteins in the membrane of another cell that permits material to pass directly from the cytoplasm of one cell to the cytoplasm of another.
E.Found in plants - the plasma membranes of two connected cells are continuous and permits materials to pass directly from the cytoplasm of one cell to the cytoplasm of another.
Explanation / Answer
1. Many single-celled eukaryotic organisms that live in aquatic environments propel themselves through the water by the motion of short ?cillia or long flagella that are composed of microtubules.
5. In animals, the shape of cells is determined and maintained by structural protein networks in the cytoplasm called? the cytoskelton ? . In plants, the extracellular matrix, a meshwork of proteins and polysaccharides outside the cell, provides both a mechanism for cells to adhere to one another and structural support that maintains their shape.
6. Plasmodesmata .
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