Biological Processes in Plant Cells PDF

BIOLOGICAL PROCESSES IN PLANT CELLS GROUP 4 PLASMOLYSIS AND TURGIDITY SEAN ORQUILLANO OSMOSIS HERNIZA SALLIM DIFFUSION CELL PERMEABILITY IMBIBITION...

BIOLOGICAL PROCESSES IN PLANT CELLS GROUP 4 PLASMOLYSIS AND TURGIDITY SEAN ORQUILLANO OSMOSIS HERNIZA SALLIM DIFFUSION CELL PERMEABILITY IMBIBITION YATIM ELLA MAREE SHERIMAE TANAH RESURRECCION  DIFFUSION 3 OSMOSIS 4 SUB TOPICS AMBIBITION 5 PLASMOLYSIS AND TURGIDITY 10 CELL PERMEABILITY 13  DIFFUSION Movement of individual molecules of a substance through a semipermeable barrier from an area of higher concentration to an area of lower concentration. 20XX presentation title 4  DIFFUSION 20XX presentation title 5 DIFFUSION With Cold water With Hot water DIFFUSION The red food coloring in the hot water diffuse faster than the blue food coloring in the cold water (see Table 1 and Figure 1).  Problem: How does the temperature of the water affect the rate of diffusion? Hypothesis: If the temperature of the water is higher, then the rate of the diffusion of the food coloring in the water will increase. 20XX presentation title 8  DIFFUSION CONCLUSION The evidence from our demonstration backs up a theory that claims that a higher temperature will enable a faster pace of diffusion since the particles in high temperature are actively moving , while in low temperature the diffusion is slow because of the particle that moves in a slow pace. 20XX presentation title 9  OSMOSIS Osmosis is the passage of water molecules across a cell's partly permeable membrane from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules. 20XX presentation title 10 OSMOSIS 20XX presentation title 11 OSMOSIS 20XX presentation title 12 OSMOSIS 20XX presentation title 13  OSMOSIS 20XX presentation title 14  OSMOSIS 20XX presentation title 15  Plasmolysis and Turgidity Osmosis is the passage of water molecules across a cell's partly permeable membrane from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules. 20XX presentation title 16  PLASMOLYSIS AND TURGIDITY STATE OF TURGOR PLASMOLYSIS The plant cell is turgid (in a state of turgor) The reverse of turgor The cell is plasmolyzed when it when it is distended and rigid because of is no longer rigid and will appear distorted under the the cell membrane pushing against the microscope. This is due to the protoplasm shrinking against the cell wall, due to an influx of away from the cell wall as a result of the loss of water water by osmosis as the cell is placed in a from the vacuole. Occurs when the cell is placed in a hypotonic solution. hypertonic solution 20XX presentation title 17  PLASMOLYSIS AND TURGIDITY STATE OF TURGOR PLASMOLYSIS 20XX presentation title 18  PLASMOLYSIS AND TURGIDITY 20XX presentation title 19  PLASMOLYSIS AND TURGIDITY With Sucrose Solution With Tap Water 20XX presentation title 20  PLASMOLYSIS AND TURGIDITY 1. What causes the movement of water into the protoplasm? -The movement of water in or out of protoplasm in plasmolysis and turgidity is due to a process called osmosis. Osmosis is the movement of water across semipermeable membrane from an area of high water concentration. 2. What is plasmolysis? -Plasmolysis is a process where plant cells lose water when placed in a hypotonic solution.. Do cells recover from the state of plasmolysis? 3 -Yes, Cells can recover from plasmolysis by osmosis in a hypotonic solution where water moves back into the cell and protoplasm swells. 4. When a living cell is immersed in a strong salt or sugar solution, what is the direction of osmosis? -when a living cell is immersed.in a strong salt or sugar solution, the direction of osmosis is out of the cell. 20XX presentation title 21  PLASMOLYSIS AND TURGIDITY 5. In what direction does salt tend to diffuse? -Areas with high concentration of salt and sugars in a solution will diffuse into the surrounding solution. 6. Which is more permeable to salt, the cell wall or the cell membrane? -The cell wall is completely permeable, it allows both salt and water inside the cell. 7. Give two semi - permeable membranes that separate the vacuole of a plant cell from the outside. -Tonoplast is the semi-permeable, elastic membrane that protects vacuoles in plants. Vacuoles are surrounded by tonoplast. Another selectively permeable membrane in the plant cell is its plasma membrane, which separates and protects the interior of the cell from the extracellular environment. 20XX presentation title 22  PLASMOLYSIS AND TURGIDITY 8. In a plasmolyzed cell, what occupies the space between the plasma membrane and the cell wall? -A hypertonic solution will be present between the cell wall and plasma membrane since the cell wall is freely permeable and will allow anything inside. 9. Will the plasmolyzed cells return to normal condition if washed and again mounted? -Yes, Plasmolysis suggests that the cell shrank due to insufficent water after being exposed to hypotonic environment. It would grow if you washed it because more water would be exposed to it. 10. Salt solution is often sprinkled in plants to kill weeds. In terms of this experiment, explain the reason for this. -Salt (sodium chbride) kills weeds by drying the plants and tampering with their internal water balance. Salt is sprayed most successfully when combined with water since it makes it easier for weed to absorb. 20XX presentation title 23  IMBIBITION o The absorption of one substance by another, particularly the uptake of water by a plant or seed. o Imbibition aids in the transport of water into the system. Ovules, which are developing into seeds. Consumption is In the early stages of water absorption by the roots, this is required. 20XX presentation title 24  IMBIBITION 20XX presentation title 25  IMBIBITION B. BASED FROM THE RESULTS OF THE A. WHAT WILL BE YOUR EXPERIMENT ON IMBIBITION'S, WHICH HYPOTHESIS ON THE SET - UP? HYPOTHESIS WILL BE ACCEPTED? REJECTED? WHY? State the null and alternative hypothesis -Based from the result of experiment, the alternative Ho: The germination process of the white hypothesis (Ha) is accepted while the null hypothesis beans is both efficient under tap water and (Ho) is rejected. The alternative hypothesis posits that sodium chloride solution. using tap water is more efficient for the growth of the Ha: The germination process of the white bean than the sodium chloride solution, this beans is more efficient under tap water hypothesis is accepted since the result of the than the sodium chloride solution experiment proved that under tap water the beans increased in its weight after 60 minutes while the sodium chloride shows a decrease in weight 20XX presentation title 26  IMBIBITION 20XX presentation title 27  COMPUTATION Computation Formula:Change in weight=final weight - initial weight T1 Initial weight:20g Final weight:23.3g Change in weight: 23.3g-20g =3.3g T2 Initial weight:20g Final weight:5.3g Change in weight: 5.3g- 20g =-14.7g 20XX presentation title 28  CELL PERMEABILITY - A quality of cell membranes that permits the passage of solvents and solutes into and out of cells. - The cell membrane permeability governs the rate of solute transport into and out of the cell, significantly affecting the cell's metabolic processes, viability, and potential usefulness in both biotechnological applications and physiological systems. 20XX presentation title 29  CELL PERMEABILITY 20XX presentation title 30  CELL PERMEABILITY BEFORE AFTER 20XX presentation title 31  CELL PERMEABILITY 20XX presentation title 32  CELL PERMEABILITY What is the indication in the color change ? After a few minutes, we noticed that the solution inside the bag had turned dark blue, unlike the solution outside it where it is submerged. This proved that iodine from outside the bag could penetrate the membrane and enter the bag. Starch did not penetrate through the membrane into the beaker as the solution in the beaker turned pale yellow-amber. 20XX presentation title 33 Thank you !!!