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Is the relationship between the fluid flow rate and the flow tube radius linear or exponential?
exponential
How does fluid flow tube length affect fluid flow?
in many different ways in connection with the thickness of the blood,
Why does a clinical thermometer has a kink in its tube?
So the working fluid doesn't flow back into the bulb when the it is removed from the heat source. This makes a clinical thermometer "sticky"; it retains the reading of the highest temperature experienced until it is "reset" by shaking.
What is thermal expansion feed water regulator operated by?
They work when steam and water occupy a tube that is on a slight incline. As water level drops the steam space inside the tube expands. The expanding tube is connected to a linkage which will open the water valve as more steam occupies the tube than water.
What effect do you think increasing the flow tube length will have on the fluid flow rate?
I have no opinion until I see the complete experimental set-up.
How do sugars move from one sieve-tube cell to the next?
by flowing along with water through perforations in the sieve plate
In a plant the pressure flow hypothesis explains the movement of sugar from the to the?
The movement of sugars in the phloem begins at the source, where (a) sugars are loaded (actively transported) into a sieve tube. Loading of the phloem sets up a water potential gradient that facilitates the movement of water into the dense phloem sap from the neighboring xylem (b). As hydrostatic pressure in the phloem sieve tube increases, pressure flow begins (c), and the sap moves through the phloem by mass flow. Meanwhile, at the sink (d), incoming sugars are actively transported out of the phloem and removed as complex carbohydrates. The loss of solute produces a high water potential in the phloem, and water passes out (e), returning eventually to the xylem.
The driving force for the movement of materials in the phloem of plants is?
Phloem ~ Pressure Flow Theory The phloem tissue moves products of photosynthesis by active transport. The flow of materials in phloem is an active process that requires energy. The mechanism of flow is driven by an osmotic pressure gradient, generated by difference in sugar and water concentrations. Just remember photosynthesis= water + sugar water= osmosis sugar=gradient
How is sieve tube different from companion cells?
The sieve tube elements are specialized elongated cells in the phloem that connect end to end forming a tube. The main function of this tube is to transport nutrition in the form of carbohydrates. Sieve cells have no nucleus, ribosomes and cytoplasm, meanin they cannot carry out primary metabolic activities. The companion cells, which are closely associated with the sieve tube elements, carry out the their metabolic functions.
What is living but non-nucleated a sieve tube bcompanion cell cphloem fiber dphloem parenchyma?
sieve tube.
What is the adaptation of phloem?
Sieve tube elements contain little cytoplasm and no nucleusHas cross walls with pores to allow flow of sapCompanion cells on the side that have mitochondria to produce ATP for active processesCompanion cell and sieve tube element are linked through many plasmodesmata
What are sieve-tube cells?
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
What are sieve cells?
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
Which equipment would help you separate a liquid mixture by distillation a freezer sand or gravel two flasks a heat source and a condensing tube a sieve such as a colander or kitchen strainer?
You need a heat source, a condensing tube and flasks.
Where is the sieve tube located?
Sieve tubes are located in the phloem tissue of vascular plants.
How is a sieve tube adapted to its job?
The end walls of the sieve tubes are perforated and these perforated end walls are called sieve plates. Pores in the sieve plates offer less resistance to flow of liquid.Little cytoplasm in cells = only forms a thin layer lining the inside of the wall of the cell.cells of the sieve tube are living,thus facilitating translocation.sieve plates allow the phloem to seal itself rapidly if it is cut,since it can clot due to callose as a carbohydratesieve plates act as supporting elements thus preventing the phloem from collapsing. .
The cells that function with the sieve tubes are the?
Cells containing sieve plates are called sieve tube members, a component of the phloem, which carries sugars produced in the leaves to various parts of the plant. They are characteristic of angiosperms (flowering plants) while gymnosperms (cone-bearing plants) have only sieve cells. Sieve cells and sieve tube members are collectively referred to as sieve elements.
