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Mean pore size is an essential aspect of scaffolds for tissue-engineering. If pores are too small cells cannot migrate in towards the center of the construct limiting the diffusion of nutrients and removal of waste products. Conversely, if pores are too large there is a decrease in specific surface area available limiting cell attachment. ;)

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Why can small cells exchange substances more readily than large cells?

Small cells have a higher surface area to volume ratio, which allows for a more efficient exchange of substances with their environment. This is because the surface area of a cell determines the rate at which substances can be exchanged, and smaller cells have a greater surface area relative to their volume compared to larger cells.


What is the function of stomata and guard cells?

There are a large number of tiny pores called stomata on the surface of leaves of plants (The singular of stomata is stoma).Each stomatal pore (or stoma) is surrounded by a pair of guard cells .The opening & closing of stomatal pores are controlled by the guard cells.


Do palms have pores and if so, what is their function in the skin?

Yes, palms have pores called sweat glands. The function of these pores is to regulate body temperature by releasing sweat onto the skin's surface, which then evaporates and cools the body.


Describe three specialize cells in the daisy and explain the function of those cells?

Palisade cells: These are elongated cells found in the upper layer of the daisy leaf responsible for photosynthesis due to high chloroplast content. Guard cells: These specialized cells surround the stomata of the daisy leaf, controlling gas exchange and regulating water loss through opening and closing of the stomatal pores. Trichomes: These are hair-like structures on the surface of daisy leaves that can help reduce water loss, protect the plant from herbivores, and sometimes even reflect sunlight, regulating plant temperature.


What are taste pores?

Taste pores are your taste buds. These are the tiny papules on the surface of your tongue that allow you to taste things. They are technically called called gustatory organs. We have four types of taste that we can detect: salty, sweet, sour, and bitter.

Related Questions

Are guard cells part of the stomata or does stomata only refer to the pore on the lower surface of the leaf?

The stomata are the pores and the guard cells control the opening and closing of these pores.


What are the cells the guard the stomata?

There are a large number of tiny pores called stomata on the surface of leaves of plants (The singular of stomata is stoma).Each stomatal pore (or stoma) is surrounded by a pair of guard cells .The opening & closing of stomatal pores are controlled by the guard cells.


Why do the root cells look different from the leaf cells of a plant?

Root cells do not have chlorophyll that gives the green color to the leaf. Root cells have hair extensions called root hairs. Leaves do not have these extensions. Root cells do not have pores. Leaves have pores that are guarded by two cells that are responsible for increasing and decreasing the size of the pores.


Do plant cells have nuclear pores?

Yes


Are masses of cells full of pores.?

porifera:sponges


What are the little dimples on the surface of nucleus?

The pores.


What do you call waters that is stored beneath the land?

Groundwater is the term used to describe water that is stored beneath the surface of the land within the pores and crevices of rock or soil.


Does the cell membrane of cells have pores or holes in them?

yes


Are nuclear pores in animal or plant cells?

They are in both


How oxygen and carbon dioxide enter and leave cells?

carbon dioxide goes into pores in the under surface of the leaf, called stomata, and diffuse into the leafs tissues and oxygen exits through these pores aswell though this cannot happen when the stomata close up


Why can small cells exchange substances more readily than large cells?

Small cells have a higher surface area to volume ratio, which allows for a more efficient exchange of substances with their environment. This is because the surface area of a cell determines the rate at which substances can be exchanged, and smaller cells have a greater surface area relative to their volume compared to larger cells.


Its pores prevent filtration of blood cells?

Capillary endothelium