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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.
What else can I help you with?
Which of the following statements about the distribution of sap throughout a plant is true?
The true statement is: "Sap is primarily transported through phloem tissue in plants." This is because phloem is responsible for the distribution of organic nutrients and sugars produced through photosynthesis to different parts of the plant.
Water moves into phloem cells by osmosis and creates an increased pressure that pushes the sugr and water in the phloem to the rest of the plant. this is description of moving materials through the p?
This process is known as translocation, which involves the movement of sugars and water through the phloem in plants. The pressure flow hypothesis explains how this movement occurs due to the osmotic pressure created by the accumulation of sugars in the phloem. As water enters the phloem cells by osmosis, it creates pressure that helps push the sugar and water solution to various parts of the plant where it is needed for growth and metabolism.
The pressure in plant cells to make them firm?
The pressure in plant cells that makes them firm is called turgor pressure. It results from the osmotic movement of water into the cell, causing the cell to swell and exert pressure against the cell wall. Turgor pressure is important for maintaining the structural integrity and rigidity of plant cells.
Which of the might be a valid hypothesis for why a plant appears to be dying?
One possible hypothesis could be that the plant is not receiving enough sunlight, leading to a lack of photosynthesis and reduced growth. Another hypothesis could be that the plant is being overwatered or underwatered, causing stress to the roots and affecting nutrient uptake. Additionally, a potential hypothesis could be that the plant is experiencing a pest infestation or disease, which is impacting its health.
What organelle in the plant cell is known as osmosis?
The vacuole is the organelle in a plant cell that is involved in osmosis. It helps maintain turgor pressure in the cell by regulating the movement of water molecules in and out of the cell through osmosis.
Which of the following statements about the distribution of sap throughout a plant is true?
The true statement is: "Sap is primarily transported through phloem tissue in plants." This is because phloem is responsible for the distribution of organic nutrients and sugars produced through photosynthesis to different parts of the plant.
Water moves into phloem cells by osmosis and creates an increased pressure that pushes the sugr and water in the phloem to the rest of the plant. this is description of moving materials through the p?
This process is known as translocation, which involves the movement of sugars and water through the phloem in plants. The pressure flow hypothesis explains how this movement occurs due to the osmotic pressure created by the accumulation of sugars in the phloem. As water enters the phloem cells by osmosis, it creates pressure that helps push the sugar and water solution to various parts of the plant where it is needed for growth and metabolism.
What physical principle explains the upward movement of water in a plant?
Principle of cohesion force among water molecules
What are the steps in the pressure-flow hypothesis?
The pressure-flow hypothesis is a year-round ordeal. There are two major stops in this process. The "source" is also known as the photosynthesis cells. The "sink" is a place to store excess sugars. An example of a "sink" would be the actual carrot in a carrot plant. Once all of the leaves die, the plant stores the glucose in the carrot. In the pressure-flow hypothesis, sugars are being made in the photosynthesis cells. Once it comes to the time of year that we call fall, the plant's leaves begin to die. The plant responds to this situation by sending its extra sugars from the source to the sink (which is usually its roots). After the fall and winter, during our spring, the plant sends the sugars back up the xylem tubes, which brings them to the leaves. Inside the leaves, there are the photosynthesis cells. This is the point at which the whole process starts again.
What best describes the prediction of the height of an adult mustard plant determined by the weight of the seed it grew from?
The prediction is useful because it explains what observation will be made if a hypothesis is true
Plant that depends on diffusion to move materials?
I assume you are referring to the mass flow hypothesis, where water from the Xylem is diffused into the phloem, adding pressure inside of the phloem which causes the movement of materials through the plant. Any good A-level (erm...or American equivalent?) textbook will have a full description of mass flow hypothesis. I found (a long time ago :( ) when I was learning this that drawing yourself a diagram of it helps a lot. Good luck.
What is an example of changing turgor pressure?
An example of changing turgor pressure is when a plant wilts due to water loss. As the cell loses water, the turgor pressure decreases, causing the cell to lose its rigidity and the plant to wilt. When the plant is watered, the turgor pressure increases, restoring the cell's rigidity and the plant stands upright again.
What does negative pressure do in a plant?
Negative pressure in a plant helps facilitate the movement of water from the roots to the leaves through a process called transpiration. This process helps maintain plant hydration and nutrient uptake. Negative pressure is created when water evaporates from the leaves, causing more water to be pulled up through the plant's vascular system.
How do plant leaves hypothesize?
I think you mean "photosynthesize". Plants are not sentient beings, and therefore, can not assert a hypothesis. This is as detailed as it gets, and explains it much better than I could hope to: http://en.wikipedia.org/wiki/Photosynthesis#In_plants
What is the hypothesis growing plant without soil?
GG
Do fossils and rocks support the hypothesis of continental drift?
Yes, fossils and rocks support the hypothesis of continental drift. Matching plant and animal fossils found on different continents suggest they were once part of the same landmass. Rocks with similar ages and compositions found across continents also provide evidence for the movement of these landmasses over time.
The pressure in plant cells to make them firm?
The pressure in plant cells that makes them firm is called turgor pressure. It results from the osmotic movement of water into the cell, causing the cell to swell and exert pressure against the cell wall. Turgor pressure is important for maintaining the structural integrity and rigidity of plant cells.
