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Which cell organelle sweep material across a surface?
Cilia are the cell organelles that sweep material across a surface. They are hair-like structures that protrude from the surface of some eukaryotic cells and beat in a coordinated way to move materials along the cell's surface.
What is the excretion of materials to the outside of a cell by discharging them from a vesicles called?
exocytosis
If a cell cannot move enough material through its membrane to survive then the ratio of its surface area to volume is?
If a cell cannot move enough material through its membrane to survive, it likely has a low surface area-to-volume ratio. As a cell increases in size, its volume grows faster than its surface area, leading to decreased efficiency in material exchange. This unfavorable ratio can hinder the cell's ability to obtain nutrients and remove waste, ultimately impacting its viability. Therefore, maintaining an adequate surface area-to-volume ratio is crucial for cellular function and survival.
How does a virus attach to a cell and transfer its genetic material into the cell?
A virus attaches to a host cell by recognizing specific receptors on the cell surface. It then injects its genetic material, either DNA or RNA, into the cell. Once inside, the virus hijacks the cell's machinery to replicate its genetic material and produce more virus particles.
What is the tail of a bacteriophage specialized for?
The tail of a bacteriophage is specialized for attaching to the host bacterial cell and injecting its genetic material into the cell. It helps the bacteriophage in recognizing and binding to specific receptors on the bacterial cell surface.
What is the function and the meaning of egestion?
Defined as the act or process of discharging undigested or waste material from a cell or organism; specificallydefecation.
Which cell organelle sweep material across a surface?
Cilia are the cell organelles that sweep material across a surface. They are hair-like structures that protrude from the surface of some eukaryotic cells and beat in a coordinated way to move materials along the cell's surface.
Describe what is meant by each of the following terms cell volume cell surface area ratio of surface area to volume?
A cell's volume is the amount of material that can fit into the cell. A cell's surface area is the total amount of material that makes up the outside of the cell. The ratio of surface area to volume is the amount of surface area per unit volume of an object or collection of objects.
Why is surface area an important characteristic of a cell?
a low surface to volume ratio doesn't waste membrane material
What is the excretion of materials to the outside of a cell by discharging them from a vesicles called?
exocytosis
The excretion of materials to the outside of a cell by discharging them from vesicles is called what?
The excretion of materials outside of a cell by discharging them from vesicles is called exocytosis. It is a process by which cells release substances such as hormones, neurotransmitters, or waste products into the extracellular environment.
Why does a sperm cell need large surface area?
A sperm cell needs a large surface area to maximize contact with the egg cell during fertilization. This allows for efficient transfer of genetic material and increases the chances of successful fertilization.
How does a virus attach to a cell and transfer its genetic material into the cell?
A virus attaches to a host cell by recognizing specific receptors on the cell surface. It then injects its genetic material, either DNA or RNA, into the cell. Once inside, the virus hijacks the cell's machinery to replicate its genetic material and produce more virus particles.
What is the tail of a bacteriophage specialized for?
The tail of a bacteriophage is specialized for attaching to the host bacterial cell and injecting its genetic material into the cell. It helps the bacteriophage in recognizing and binding to specific receptors on the bacterial cell surface.
What do the proteins in cell membrane do?
Many are active and passive transmember proteins for the passage of material into and out of the cell and some are markers on the cell surface that distinguish one bodies cells from another bodies cells.
Why are groups of a small cells better than one large cell at moving material in and out?
they have a greater surface-to-volume ratio
Why are groups of small cells better than one cell of moving material in and out?
They have greater surface area-to-volume ratios.
