...................................................................... (2) (Total 4 marks) Page 1 of 14 Q2. The drawing shows a potato plant producing new tubers (potatoes). Buds on the stem of the parent plant produce stolons. The new tubers are formed at the ends of the stolons (stems that grow downwards). (a) Explain why the new tubers are genetically identical to each other.
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No.06 Determining water potential of potato tuber cells: the weighing method If a plant cell is in equilibrium with an external solution of such a concentration that there is not net loss or gain of water‚ the water potential of the external solution will be equal to the water potential of the cell. Use of this fact can be made in estimating the water potential of a plant tissue. Samples of tissue are immersed in a range of external solutions of different strengths. The solution that induces
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Biology 107 Section 1 11/4/13 Diffusion & Osmosis Introduction The purpose in this experiment was to estimate the osmolarity of potato tuber and celery cells by change of weight.Pieces of potato tuber and celery would be incubated in different sucrose solutions to find out the molarity at which weight of potato and celery tissues do not change. My hypothesis was that the Table 1: Group Data for Experiment:Estimating Osmolarity by Change in Weight Table
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amount coming out‚ so there is no net movement‚ When the cell is in this state between turgidity and flaccidity‚ It’s called Incipient Plasmolysis. Osmosis is a form of passive transport‚ passive transport doesn’t use energy‚ the molecules go down a concentration gradient. Active transport is the opposite it uses ATPase for energy‚ and molecules move against a concentration gradient. Prediction: When the potato cylinder is placed in a high water potential sucrose solution I think it will increase
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protective spore case. When ready‚ it breaks open and spores are dispersed. Tuber formation in potatoes * Potatoes reproduce asexually by stem tubers. * They are swollen underground stems that grow from parent plant * Sucrose is transported in the phloem from the leaves into these underground stems that swell as they convert sucrose > starch. * Parent plant dies at end of growing season but tubers are left to survive over the winter. * Farmers dig em up and sell em.
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zonal mandate‚ the institute has the responsibility of conducting research into: Genetic improvement of root & tuber crops of economic importance in Nigeria Agronomy of root and tuber crop production including farming systems development for the southeast agro ecology Design and fabrication of simple agricultural farm tools and equipment Storage‚ processing‚ utilization of root & tuber crop production. NRCRI has taken giant strides with
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ASSESSING FACTORS CONTRIBUTING TO LOW SWEET POTATO YIELD AMONG SMALLHOLDER FARMERS: IN MPINGU EXTENSION PLANNING AREA IN LILONGWE DISTRICT BY SAMUEL CHINTHALO Cell: 0888626384/0993260142 Email: Samuelchinthalo@yahoo.com A RESEARCH PROJECT PROPOSAL SUBMITTED TO THE FACULTY OF DEVELOPMENT STUDIES‚ AGRICULTURAL EXTENSION DEPARTMENT IN A PARTIAL FULFILMENT OF THE REQUIREMENTS OF BACHELOR OF SCIENCE DEGREE IN AGRICULTURAL EXTENSION UNIVERSITY OF MALAWI BUNDA COLLEGE OF
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UNIVERSITY – HCMC INTERNATIONAL UNIVERSITY School of Biotechnology BSc THESIS PROJECT PROPOSAL PHYSICOCHEMICAL AND FUNCTIONAL PROPERTIES OF ANNEALING TREATED YAM&SWEET POTATO STARCHES I/Project general information Name of study : Physicochemical and functional properties of annealing treated sweet and yam potato starches Field of study: Food biotechnology Supervisors: Dr. Pham Van Hung Host institute: school of biotechnology at HCM international university Time: 1/2013-5/2013 Budget
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particles moved with more speed than the larger particles. B. Potato Core Experiment In this experiment we estimated the osmolarity of potato tuber tissue by submersing different potato cores into sucrose solutions of 0.0-0.6M‚ and weighing the potato. We concluded that the osmolarity of the potato was about 0.4M since the weight of the potato did not change after it was incubated in the solution with 0.4M. We also found that the potato was hypertonic to sucrose solutions of 0.0-0.3M and hypotonic
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usage of potato tuber cells. In experiment 5.1 in order to observe diffusion we examine the Brownian movement by observing carmine on a wet mount slide‚ and by using dialysis tubing‚ we investigate the selective permeability to reducing sugar‚ glucose‚ starch‚ and iodine potassium iodine. In experiment 5.2 we use samples of ox blood and Elodea plant to observe the net flow of water from the surrounding solution into the cells. In experiment 5.3 in order to estimate the osmolarity of the potato tuber
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