Lab Topic: Movement of Materials Across the Cell Membrane—Potato Tuber Cells Introduction: Osmosis is a form of diffusion in which water diffuses through a selectively permeable membrane from a region of high concentration to a region of lower concentration. This form of diffusion takes place when the molecules in high concentration are too large to move through the membrane. Three factors that determine cell membrane permeability are shape‚ size‚ and polarity. For this experiment‚ it must
Premium Osmosis Semipermeable membrane Tuber
ranging from simple boiling to elaborate fermentation‚ drying and grinding to make flour may vary depending on the varieties of roots and tubers. The taro flour production from fresh tuber soon after harvest serves as an effective procedure against storage loss. Converting fresh edible tubers to flours will avoid losses and ensure supply of the products from tubers throughout the year‚ which may contribute to the growth of regional food industries and employability of the people.¬ 2.5.1. Basic steps
Premium Taro Taro Corm
Measuring the Water Status of Potato Tubers Objectives: Upon completion of this laboratory you should be able to: 1. determine the water potential of a plant tissue by the Chardokov and gravimetric techniques and understand the underlying theory. 2. determine the osmotic potential of a plant extract by the freezing point depression method and understand the underlying theory. 3. describe techniques for measuring the pressure potential of a plant tissue. 4. describe techniques for measuring
Premium Cell wall Tuber Osmosis
the ideas or writing of other individuals/authors. _Alexandra DeWitt_____________ __5/1/13____________ Author Date _10_________ Lab Section # Increasing Sucrose Concentrations Causes the Osmotic Concentrations of Disks of Potato Tubers to Decrease Abstract: Introduction: The biological membranes are composed of phospholipid bilayers‚ each phospholipid with hydrophilic heads and hydrophobic tails‚ and proteins. This arrangement of the proteins and lipids produces a selectively
Premium Concentration Osmosis Chemistry
From the table it was found that the calcium oxalate content in fresh tuber were 0.14% in elephant foot yam‚ in karunai kizhangu 0.25% and in taro 0.20 percent respectively. The processed (soaking the tubers in citric acid followed by blanching‚ drying & roasting) tuber flour was subjected to determine the presence of calcium oxalate. It was found that elephant foot yam flour had 0.05%‚ karunai kizhangu flour contained 0.09% and in taro flour had 0.08 percent calcium oxalate. The reduction in acridity
Premium Starch Value added Colocasia esculenta
Exercise 1 – Potato Change in Mass versus Sucrose Concentrations Introduction: This exercise involves estimating the osmotic concentration of potato tuber cells by using a change in mass method. The null hypothesis states that there will be no change of mass of the potato disks after they have been incubated in any sucrose solution. This means that the concentration of sucrose that the potatoes are in will no effect the movement of water in or out of the potato cells. However‚ the alternative hypothesis
Premium Null hypothesis Tuber Potato
Transformation of Amyloplasts into Chloroplasts in Potato Tubers’ Received for publication November 9‚ 1983 and in revised form January 19‚ 1984 YU S. ZHU‚ DENISE L. MERKLE-LEHMAN‚ SHAIN D. KUNG* Department of Biological Sciences‚ University of Maryland Baltimore County‚ Catonsville‚ Maryland 21228 ABSTRACT The transformation of amyloplast into chloroplasts in potato (Solawum tuberosum L.) tuber tissue can be induced by light. Excised potato tuber discs illuminated with white light of 3000 lux bepgn
Premium Photosynthesis Chloroplast Tuber
the seeds. * Vegetative reproduction is a form of asexual reproduction since no gametes are used. * 8 types of vegetative reproduction : * Runners / stolons * Rhizomes * Corms * Bulbs * Leaves * Suckers * Stem tubers * Stem * RUNNERS / STOLONS Runners are stems which grow horizontally over the surface of the ground. Shoots and roots of the young plant grow from the nodes of the runners. Example : strawberry plant‚ sweet potato‚ grass‚ Indian pennywort
Premium Plant stem Tuber Seed
Mycobiology Research Note First Report of Potato Stem-End Rot Caused by Fusarium oxysporum in Korea Md. Aktaruzzaman ‚ Sheng-Jun Xu ‚ Joon-Young Kim ‚ Jae-Hyoun Woo ‚ Young-Il Hahm and Byung-Sup Kim * 1 1 1 1 2 1‚ 1 Department of Plant Science‚ Gangneung-Wonju National University‚ Gangneung 210-702‚ Korea Daegwallyong Horticultural Cooperative‚ Pyungchang 232-950‚ Korea 2 Abstract In this study‚ we identified the causative agent of stem-end rot in potatoes that
Premium Fusarium Fungus Potato
DETERMINATION OF THE WATER POTENTIAL OF POTATO TUBER CELLS. Method. Five sucrose solutions with varying molarity and one control containing distilled water were prepared and poured into test tubes. The potato discs were dried‚ weighed and added to the test tubes. The discs were then weighed again after a period of 24 hours. The percentage change in mass was then calculated. Apparatus.  Specimen tubes with stoppers x6  1cm3 diameter cork borer  razor
Premium Osmosis Concentration Solution