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How are perforins different from granzymes?
Perforins are proteins that form pores in the target cell membrane, allowing entry of granzymes into the target cell. Granzymes are enzymes that are delivered into the target cell by perforins and trigger apoptosis, or cell death, in the target cell.
True or fals Saturated zones are pores filled with air and unsaturated zones are pores filled with water?
False. Saturated zones are pores filled with water, while unsaturated zones have both water and air in the pores.
In dicot the pollen grains possess how much germ pores?
3 germ pores
Would an impermeable material have large or small pores Would the pores be connected or unconnected?
An impermeable material would have small pores, if any, that are likely unconnected. Small pores limit the movement of substances through the material, and unconnected pores minimize the pathways for substances to traverse.
What is a nuclear pores function in a cell?
Nuclear pores allow molecules to move through the nuclear envelope.
One trigger of mass movement is the pores in sediments filling with what?
Water and sediment are common substances that can fill the pores in sediments and act as triggers for mass movements. When the pores become saturated with water, it can decrease the strength and stability of the sediment, leading to events like landslides or debris flows.
One trigger of mass movements is the pores in sediment filling with?
debris
What fills soil pores?
Soil pores can be filled with air, water, and organic matter. Air fills the larger pores, while water occupies the smaller pores. Organic matter such as roots, fungi, and bacteria also contribute to filling soil pores.
Does friction decrease or increase?
Wax, due to it filling the pores that cause friction will reduce friction.
What is resin impregnation process?
In resin impregnation, any porous material is made impervious by filling its pores with the resin.
Why do angular sediments have a lower porosity?
Angular sediments have lower porosity compared to rounded sediments because angular grains have irregular shapes that leave less space between them. This results in a more compacted arrangement of grains, reducing the overall porosity of the sediment.
Why do steroids cause acne?
Because they raise testosterone/hormone levels which are normally increased in puberty. An effect of the trigger is more oil seeping from the pores which can lead to acne.
What is the purpose of polyurethane when finishing lumber?
Polyurethane is a sealant; it keeps water from absorbing into the wood by filling the microscopic pores and grains. If water enters the wood, it can warp and become unstable.
Do fish have pores?
no fish do not have pores they have scales it is why they don't have pores if you were a fish then scales would be like pores.
What is a homophone for pores?
pores and paws and pause and pours
What type of sediments hold a lot of water and allow large amounts of water to pass through the pores?
Sands and gravels are porus sediment types that hold a lot of water and allow for high rates of water flow due to the larger pore spaces between the particles. These sediments are known as "porous" or "permeable" due to their ability to store and transmit water easily.
What does water that soaks into the ground and collects in pores in soil and rock turn into?
Water that soaks into the ground and collects in pores in soil and rock becomes groundwater. Groundwater is water that has infiltrated the soil and rocks below the Earth's surface, filling the spaces between particles or within cracks and cavities. It is an important water source for wells and springs.
