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How many sperms cells are permitted to penetrate an egg cell?
Most 99.99% of the time only one is supposed to.
Do egg cells have enzymes to digest cell membranes?
Yes, egg cells have enzymes called hyaluronidases that help break down the cell membrane of the egg. This allows sperm to penetrate the egg during fertilization.
What is the tall sheath in the sperm cell?
how the sperm cells structure is linked to the cells function, the tall sheath?
Why does nigrosine stain background and not the cell wall in the procedure?
Nigrosine is an acidic dye that carries a negative charge, which repels from the negatively charged cell wall of bacteria. Instead, it stains the background by providing a contrast to the cells, as it does not penetrate or adhere to the cells themselves. This results in a clear visualization of the cells against a dark background, allowing for easier observation of cell morphology.
What is the name given to the structure which penetrate the walls of adjacent plant cell?
The structures that penetrate the walls of adjacent plant cells are called plasmodesmata. These are microscopic channels that allow for the transport of water, nutrients, and signaling molecules between cells, facilitating communication and coordination within the plant. Plasmodesmata play a crucial role in plant physiology by enabling the movement of substances without crossing the cell membrane.
How many sperms cells are permitted to penetrate an egg cell?
Most 99.99% of the time only one is supposed to.
When the sperm cells joins an egg cells?
When the sperm penetrate the egg cell fertilization occurs.
How does the structure of sperm cells relate to the function?
Its head can use to penetrate to egg cell and tail can use to move.
What are the six cell types?
ovum or egg cell sprem cell nerve cell red blood cell bone cell skin cell
What are the six types of cells?
there are many cells that can be derrived via hematopoesis initially you have the stem cell, it can be turned into endotheliel cells, fibroblasts, adipocytes, macrophages, dendritic cells, neutrophils, eosinophils, basophils, erythrocytes, platelets, plasma cells, b cells, T cells and monocytes
Do egg cells have enzymes to digest cell membranes?
Yes, egg cells have enzymes called hyaluronidases that help break down the cell membrane of the egg. This allows sperm to penetrate the egg during fertilization.
Can an antibody penetrate the host cell to bind intracellular antigen?
The majority of antibodies bind secreted or membrane bound antigens and do not penetrate cells. Antibodies can be taken up into cells via endocytosis. However, a subset of autoantibodies isolated from autoimmune diseases in humans and mouse models are able to penetrate cells and bind to their antigen in the cytoplasm or nucleus (e.g. anti-DNA autoantibodies).
What is the tall sheath in the sperm cell?
how the sperm cells structure is linked to the cells function, the tall sheath?
2 structures in sperm cell that are not found on animal cells?
The acrosome, which contains enzymes that help the sperm penetrate the egg, and the flagellum, which allows the sperm to swim towards the egg, are two structures found in sperm cells that are not present in animal cells.
What is the purpose of heating the onion root tip cells and the acetocarmine stain?
Heating the onion root tip cells softens the cell walls and allows the acetocarmine stain to penetrate the cells. The stain then binds to the DNA in the cells, making the chromosomes visible under a microscope for easier observation and analysis in cell division studies.
Is it possible to have a normal sperm count but be infertile?
Yes. The sperm cells themselves can be abnormally shaped, non-motile or otherwise unable to penetrate the egg cell.
Why does nigrosine stain background and not the cell wall in the procedure?
Nigrosine is an acidic dye that carries a negative charge, which repels from the negatively charged cell wall of bacteria. Instead, it stains the background by providing a contrast to the cells, as it does not penetrate or adhere to the cells themselves. This results in a clear visualization of the cells against a dark background, allowing for easier observation of cell morphology.
