Essays Tagged: "Sucrose"

Biology Practical to study the Osmosis effects of Sucrose solutions of different Molarities upon Plant Cells (Chinese Radish and Potato Chips)

gate the movement of water by osmosis in and out of plant cells across a semi permeable membrane in sucrose solutions of different concentrations. The plant cells used in the experiment are potato and ... centration of the solution it was in.Using the results recorded during the experiment, the cell sap sucrose concentration of each chip can be worked out.Overall, the experiment must be planned and osm ...

(26 pages) 78 0 2.3 Jan/2004

Subjects: Science Essays > Biology > Plant Biology

Carbs in The Human Body

arbohydrates. Simple carbohydrates, sometimes called simple sugars, include fructose (fruit sugar), sucrose (table sugar), and lactose (milk sugar), as well as several other sugars. Fruits are one of ...

(2 pages) 173 9 3.7 Feb/2004

Subjects: Science Essays > Chemistry

Explain how translocation of sucrose occurs in the phloem as proposed by the mass flow hypothesis.

Translocation involves the transport of organic materials produced through photosynthesis, such as sucrose, from the leaves to other parts of the plants where they are utilized. It occurs in the phlo ... hey are utilized. It occurs in the phloem sieve tube between the source end(near the leaves); where sucrose is loaded due to the process of photosynthesis by the palisade and spongy mesophyll cells to ...

(1 pages) 34 0 3.0 Apr/2004

Subjects: Science Essays > Biology

How the Rate of Diffusion is Affected by the Temperature of Water

process. The dialysis bags represented our selectively permeable membrane with the fluid inside it, sucrose. How much of the substance moves from the cup to the bag quickly depends on the temperature ... .Materials and MethodsThe materials used were a dialysis bag, string, pipet, beaker with water, 10% sucrose water, and a balance. The variables that we made standardized were the concentration of the ...

(4 pages) 31 1 4.7 Aug/2004

Subjects: Science Essays

Coursework - Osmosis

Coursework - OsmosisPlanningAim: To investigate what concentration of sucrose solution is isotonic to potato cell sap.Apparatus:0M sucrose (aq) (distilled water)2M sucros ... nge to base my investigation round. I used 3 chips in 3 boiling tubes, each containing 20cm3 of: 0M sucrose, 0.5M sucrose and 1M sucrose.Moles of Sucrose /M Original Mass /g Mass after ... 7.20 DownAs you can see from my preliminary results, I should investigate between 0M sucrose and 0.5M sucrose as a suitable range.I predicted that the isotonic concentration lies betwee ...

(3 pages) 16 0 0.0 Nov/2004

Subjects: Social Science Essays

To investigate how concentration effects osmosis on potato chips.

r potential/concentration of solution on potato chips. This means that I will put potato chips into sucrose solutions of different concentrations. These concentrations would be ones such as these; 0mo ... onic which means the water moved into the potato.Apparatus:Measuring Cylinder (cm?)- to measure the sucrosesolution and the distilled water.Digital Weighing Scales- to weigh the mass of the potatostri ...

(11 pages) 31 0 2.3 Dec/2004

Subjects: Science Essays

Comparing the solubility's of copper sulphate, sodium chloride and potassium nitrate

he substance. The energy needed for this is produced by the forming of bonds between slightly polar sucrose molecules and polar water molecules. This process works so well between sugar and water that ...

(4 pages) 19 0 0.0 Jan/2005

Subjects: Science Essays > Chemistry

Variable Production of Carbon Dioxide and Ethanol by the Yeast Saccharomyces in Fermentation due to Temperature Changes

, several materials were used in the experiment. Two 500 mL flasks were used, one contain 250 mL of sucrose and the other 250 mL of water. The two flasks were calibrated to an assigned stable temperat ... filled with water and submerge in water bowls. After the set up was complete, the flask containing sucrose received the living yeast cells (Saccharomyces), and both flasks were stopped with stoppers ...

(8 pages) 57 0 0.0 Apr/2005

Subjects: Science Essays > Biology


d in photosynthesis is called glucose. The starch is broken down into glucose and then converted to sucrose. Sucrose is a small enough sugar that is can be transported across biological membranes. Bes ... nsports substances using the pressure flow mechanism. This process requires cellular energy *(ATP). Sucrose is loaded into the phloem vessels against a concentration gradient by active transport using ...

(1 pages) 1087 1 4.0 Dec/2005

Subjects: Science Essays > Biology

Biology - The Movement of Molecules

ransport includes processes such as "ion pumps", "exocytosis" and "phagocytosis". Molecules such as sucrose's are moved against their concentration gradient using active transport - this requires the ... membranes will let small molecules pass through it easily, but will hold back larger molecules like sucrose's. It acts as if it has tiny holes in it, too small for the larger molecules to squeeze through.

(2 pages) 30 0 5.0 Feb/2006

Subjects: Science Essays > Biology

Organic compounds that compose the human body

nkage between the number one carbon of one glucose and the number four carbon of the other glucose. Sucrose has a 1-2 linkage. Polysaccharides are storage or structural macromolecules made from many h ...

(3 pages) 25 0 0.0 Apr/2006

Subjects: Science Essays > Biology > Human Biology

Heavily summarised notes for biological molecules (carbohydrates)

charides (Fig. 1).Common examples are:- maltose = glucose + glucose- lactose = glucose + galactose- sucrose = glucose + fructose- The bond formed between the 2 monosaccharides is called the glycosidic ... a constituent of DNA) and synthesis of disaccharides and polysaccharides.2. As a source of energy3. Sucrose is a good transport sugar in plants.- It is very soluble - can be moved in high concentratio ...

(1 pages) 14 0 0.0 Sep/2006

Subjects: Science Essays > Biology


dental plaque and the deposits left on the teeth from foods high in sugars, most commonly glucose, sucrose and lactose, and bacteria. The two bacteria that are most closely linked to the formation of ...

(2 pages) 13 0 0.0 May/2001

Subjects: Humanities Essays > Health & Medicine

AT1 Bilology

oursework What I am going to do For my biology AT1 I am going to how the concentration of water and sucrose affects the rate of osmosis in a potato.How I plan to do this To accomplish my experiment I ... I plan to put as evenly sized places of pieces of potato into different concentrations of water and sucrose solutions. I will weigh each potato before and after each experiment so that I can calculate ...

(9 pages) 3 0 0.0 Oct/2001

Subjects: Science Essays > Biology

Osmosis AT1

Conclusion: What I have found out is that the higher the concentration of sucrose the higher up was the potato chip in the test tube. The water inside the potato is moving fr ... with my prediction. I think that they disagree with my prediction as when the concentration of the sucrose solution gets higher the more limp the potato piece becomes, we know this is correct however ... least weight: completely defying with my prediction. The highest average mass gain was for the 0.6% sucrose solution. The highest average mass loss was for the distilled water and 0.4% sucrose solutio ...

(3 pages) 1902 0 3.0 Nov/2001

Subjects: Science Essays > Biology


+ 2.Maltose + 3.Sucrose - 4.Lactose + ... + (Blue) 2.Maltose - (Yellow) 3.Sucrose - (Yellow) 4.Glucose - (Yellow) ...

(1 pages) 784 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Chocolate Chip Cookie

(1 pages) 1133 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Review of two experiment the first on the reaction between a gummy bear and molten potassium and the second is Oxidation of glycerine by potassium permanganate

When combining one gummy bear, which is composed mostly of sucrose with molten potassium chloride, a violent reaction occurs. A surprising amount of energy us ... red product reaction is where almost all of the reactants, react to form products. In this case its sucrose and potassium chlorate react completely to form carbon dioxide, water and potassium chloride ... can use. It is the same process for this gummy bear and molten potassium chlorate reaction. Since, sucrose contains glucose, a gummy bear is used. Bonds of glucose have a lot of energy in them and th ...

(2 pages) 5255 0 0.0 May/2008

Subjects: Science Essays > Chemistry

Diffusion, Osmosis, and Water Potential

(1 pages) 28 0 5.0 Sep/2008

Subjects: Science Essays > Biology

"Transport systems play an essential role in the survival of flowering plants and mammals"Discuss.

tively transported from the leaves of the plant through to the phloem tissue usually in the form of sucrose to other parts of the flowering plant either for storage in developing fruits or to be used ... ther parts of the flowering plant either for storage in developing fruits or to be used for energy. Sucrose is also transported down phloem tissue from sources to sinks which store the sucrose as star ...

(6 pages) 14 0 0.0 Nov/2008

Subjects: Science Essays > Biology