Difference between revisions of "Glucose"
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====Testing For Glucose==== | ====Testing For Glucose==== | ||
| − | : [[Glucose]] | + | : [[Glucose]] can be detected with the [[Benedict's Test]]. |
=====Method===== | =====Method===== | ||
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[[Glucose]] is a [[monosaccharide]] which all have the [[Chemical Formula|formula]] C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>. | [[Glucose]] is a [[monosaccharide]] which all have the [[Chemical Formula|formula]] C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>. | ||
| − | === | + | ===About Glucose=== |
| + | : [[Glucose]] has a store of [[Chemical Potential Energy Store|chemical potential energy]]. | ||
| + | : [[Glucose]] is used in [[respiration]] to provide [[energy]] for [[Cell (Biology)|cells]]. | ||
| + | : Two [[glucose]] [[molecule]]s [[Bonds|bonded]] together make [[maltose]]. | ||
| + | : Many [[glucose]] [[molecule]]s [[Bonds|bonded]] together make [[starch]]. | ||
| + | : [[Glucose]] can be detected using the [[Benedict's Test]]. | ||
| + | |||
| + | ====Testing For Glucose==== | ||
| + | : [[Glucose]], and other [[monosaccharide]]s, can be detected with the [[Benedict's Test]]. | ||
| + | |||
| + | =====Method===== | ||
| + | : 1. A sample of food is dissolved in water. | ||
| + | : 2. The solution is added to blue Benedict's solution in a boiling tube. | ||
| + | : 3. The solution is kept at 90°C for up to 10 minutes. | ||
| + | : 4. A colour change indicates the presence of glucose or fructose. If they are present the solution will eventually turn brick red or brown. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:BenedictsTest.png|center|600px]] | ||
| + | |- | ||
| + | | style="height:20px; width:600px; text-align:center;" |When sugar is present the Benedict's solution turns from blue through several colours until it becomes brick red or brown. | ||
| + | If this was done with sucrose the Benedict's solution would stay blue. | ||
| + | |} | ||
Revision as of 20:16, 5 November 2018
Contents
Key Stage 3
Meaning
Glucose is a simple sugar with formula C6H12O6.
About Glucose
- Glucose has a store of chemical potential energy.
- Glucose is used in respiration to provide energy for cells.
- Glucose can be detected using the Benedict's Test.
Testing For Glucose
- Glucose can be detected with the Benedict's Test.
Method
- 1. A sample of food is dissolved in water.
- 2. The solution is added to blue Benedict's solution in a boiling tube.
- 3. The solution is kept at 90°C for up to 10 minutes.
- 4. A colour change indicates the presence of glucose or fructose. If they are present the solution will eventually turn brick red or brown.
 |
| When sugar is present the Benedict's solution turns from blue through several colours until it becomes brick red or brown.
If this was done with sucrose the Benedict's solution would stay blue. |
Key Stage 4
Meaning
Glucose is a monosaccharide which all have the formula C6H12O6.
About Glucose
- Glucose has a store of chemical potential energy.
- Glucose is used in respiration to provide energy for cells.
- Two glucose molecules bonded together make maltose.
- Many glucose molecules bonded together make starch.
- Glucose can be detected using the Benedict's Test.
Testing For Glucose
- Glucose, and other monosaccharides, can be detected with the Benedict's Test.
Method
- 1. A sample of food is dissolved in water.
- 2. The solution is added to blue Benedict's solution in a boiling tube.
- 3. The solution is kept at 90°C for up to 10 minutes.
- 4. A colour change indicates the presence of glucose or fructose. If they are present the solution will eventually turn brick red or brown.
|
| When sugar is present the Benedict's solution turns from blue through several colours until it becomes brick red or brown.
If this was done with sucrose the Benedict's solution would stay blue. |