*prevent liquid from seeping between cells
Desmosomes
*act as rivets to hold adjacent cells together when epithelial tissue moves
Gap junctions
*allow movement of cytosol, ions, and small molecules between animal cells
Plasmodesmata
*openings through the cell walls of plant cells that allow adjacent cells to share materials
Answer:
Tight junctions - prevent liquid from seeping between cells
Desmosomes - act as rivets to hold adjacent cells together when epithelial tissue moves
Gap junctions - allow movement of cytosol, ions, and small molecules between animal cells
Plasmodesmata - openings through the cell walls of plant cells that allow adjacent cells to share materials
Explanation:
1) Tight junctions are one of the cell junctions found in animal cells. Tight junctions function to prevent the flow of liquid materials between cells.
2) Desmosomes are another type of cell junctions whose function is to form a connection between two adjacent cells. The structure formed by this connection confers strength upon the tissues involved.
3) Gap junctions are the most commonly found cell junctions found in animal cells that connects adjacent cells allowing the passage of cytosol, ions and other small molecules in them from one adjacent cell to another.
4) Plasmodesmata is a cell junction found in plant cells. They are small openings lying across the cell wall of plant cells whose function is to connect the cells and facilitate the movement of materials from one cell to another.
Tight junctions prevent liquid seepage between cells, desmosomes hold cells together, and gap junctions allow movement between animal cells.
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Answer:
To view prokaryotes with the compound microscope, you must use an oil-immersion lens (100x objective).
Answer:
Explanation:
Irreversible inhibitors are inhibitors whose action are not reversible. They function by modifying enzyme in a covalent way leading to the formation of new functional group.
Irreversible inhibitors are specific to certain enzymes. Examples is inhibitor that are suicidal they makes inhibitor reactive.
Competitive inhibition are Inhibitor that are competitive in nature they resemble one of the substrate of the enzyme and are been bind to by mistake. Example is an inhibitor that resemble folate an enzyme substrate. Enzyme therefore binds to the inhibitor assuming its folate because they are identical.
zone of maturation
root meristem
zone of cell division
Newly formed root cells start to differentiate into various cell types in the zone of maturation. Here, cells adopt specialized functions like root hair cells, transport cells, or storage cells after the stages of root meristem and elongation.
Newly formed root cells begin to form different cell types in the zone of maturation. The root system in plants involves different zones. Directly behind the root tip is the root meristem, which is the site of active cell division. Beyond the root meristem is the zone of elongation, where cells begin to elongate. However, it is in the zone of maturation, or differentiation, where cells adopt specialized functions such as root hair cells, storage cells, or transport cells.
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Newly formed root cells begin to differentiate into different cell types in the zone of maturation. This is the final stage where elongated cells from the zone of elongation mature into specialized cells.
Newly formed root cells begin to differentiate into different cell types in the zone of maturation. In the root development process, there are different zones responsible for different tasks. The process starts at the root meristem, where cells are actively dividing. Next, these young cells move into the zone of elongation, where they begin to lengthen. Lastly, these elongated cells enter the zone of maturation. In this zone, they further differentiate into specialized cells, responsible for absorption of water and minerals, a function integral to the plant's survival.
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Answer:
cells have different shapes because they do different things
Explanation:
each cell type has has its own role to play in helping our bodies
to work properly
Answer:
22 cells
Explanation:
The concentration of numbers of cells = 6.74 x 10⁶ cells/ml
Dilution stages includes = 1:100 ; 1:100 & 1:3
The consecutive dilution stages can be calculated as:
= (6.74 x 10⁶) × (1/100)(1/100)(1/3)
= 222.42 cells/ml
= 2.22 × 10² cells/ml
So after addition 0.1 ml of the final dilution to a spread plate, the number of CFUs ( Colony forming units) we expect to count will be:
= (2.22 × 10² cells/ml)(0.1 ml)
= 22.2 cells
≅ 22 cells.