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What substance makes up the cell walls of xylem vessel?
Not sure
What fibers surround the xylem tissues?
Fibers made of long, narrow, sclerenchyma cells with thick secondary walls surround the xylem tissue. They provide strength and support to the xylem tissue.
Why is xylem vessel referred to as mechanical tissue?
- Walls made from dead lignin cells, which waterproof and support walls even if water levels are low in plants. - Narrow tubes so water column doesn't break easily. - Pits in walls allow water to move from one cell to another.
Why do villi have thin walls?
Villi have thin walls to facilitate efficient absorption of nutrients from the digested food. The thin walls allow for a close proximity between the nutrients and the blood vessels, which helps in the rapid diffusion of nutrients into the bloodstream.
Why doesn't a hollow Prism disperse light?
Infinitely thin walls will not affect the beams of light, if the prism walls are not infinitely thin then there will be dispersion but not much.
What property of water accounts for the fact that the molecules of water grab the walls of the thin xylem vessels?
Adhesion is the property of water that allows its molecules to stick to the surfaces of the thin xylem vessels in plants. This is important for water transport in plants as adhesion helps water to move up the xylem vessels against gravity.
What property of water accounts for the fact that molecules of water grab the walls of the thin xylem vessels?
Adhesion. Adhesion causes polar water molecules to adhere to the surface of a material that is polar.
Xylem tubes are rigid because they include this chemical NOT found in phloem in their cell walls?
Xylem cells are strengthened by a substance called lignin. This strengthening is necessary because as water is pulled through the xylem it creates a pull on the cell walls which would cause the xylem to collapse, just like a paper straw collapses if it gets too wet.
What are the walls of xylem reinforced with?
The walls of xylem are reinforced with a substance called lignin. Lignin is a complex non-carbohydrate substance found along with cellulose. Lignin reinforces the walls of the xylem to provide rigidity and support and helps to keep the vessels open for water flow.
What substance makes up the cell walls of xylem vessel?
Not sure
How do plants drink food coloring?
they use this thin called xylem
What fibers surround the xylem tissues?
Fibers made of long, narrow, sclerenchyma cells with thick secondary walls surround the xylem tissue. They provide strength and support to the xylem tissue.
Where does gas exchange occur?
gas exchange occurs between the thin walls of the alveoli and the thin walls of the capillaries
Why is xylem vessel referred to as mechanical tissue?
- Walls made from dead lignin cells, which waterproof and support walls even if water levels are low in plants. - Narrow tubes so water column doesn't break easily. - Pits in walls allow water to move from one cell to another.
Cells in the soft tissue of a plant have walls made up of?
pectin and cellulose
What are two types of thin water conducting tubes in plants?
Xylem and phloem are the two types of thin water conducting tubes in plants. Xylem transports water and minerals from the roots to the rest of the plant, while phloem transports sugars produced during photosynthesis to other parts of the plant.
Tissue made of thin walled cells found in leaves stems and roots?
Xylem
