480 517 8380 a. COOH is the Carboxyl group or carboxylic acid, and aldehyde group. b. COH is the Hydroxyl group, alcohol group, and aldehyde group. C. COH is Hydroxyl group and alcohol group. The corn syrup turned into a rust-like color which makes it a positive for reducing sugar. b. The table sugar stayed blue so it is negative for reducing sugars. c. Unknown 1 was not positive to reducing sugars as it stayed a ligh-blue color. d. Unknown 2 was not positive to reducing sugars since it stayed blue. e. Unknown 3 was a teal-blue making it negative for reducing sugars. f. Unknown 4 turned an orange-red color making it positive for reducing sugars. Onion juice produced an orange color making it negative for starch. b. Water produced …show more content…
Medical diagnosis and lab testing can becommercial uses for biochemical testing to diagnose diseases. Animals are also checked for diseases and to make sure they are acceptable for human ingestion. Covalent bond is the strongest of bonds and it happens when two atoms share the same electrons. An example of this would be H2. Ionic bonds happen when an atom gives up the outer electrons to another atom, which produces an ion. The atom that loses the electrons becomes a positive charger and the other becomes negative. Examples of Ionic bonds are NaCI(Sodium Chloride) and MgO(Magnesium Oxide). Hydrogen bonds only form between hydrogen and oxygen, nitrogen or flourine. It is a chemical bond that happens when a hydrogen atom is attracted to the electromagnetic atom of another molecule . The difference between monosaccharide, disaccharide, and polysaccharide is the number of molecules that bond. Monosaccharide has a single sugar molecule while disaccharide contains 2 sugar molecules that bond together due to dehydration. A Polysaccharide is 10 or more sugars that bond together due to
This lab used many test to determine which functional groups were present in certain substance. The Benedicts test was used to identify reducing sugars (glucose and fructose) based on their ability to reuce the Capric ions to cuprous oxide at high pH. The Cuprous oxide is reddish orange in color when shown to be at high levels by the test, and greenish when at low levels. In both the onion juice and glucose solution the reducing sugar levels were very high, because the test came back dark orange. The starch solution had relatively low levels of reducing sugar present and this was seen by the test coming back cloundy blue, green and brown.
improved in any way unless another sugar was utilized. There were some things that were difficult to keep constant in the experiment and this is where my results may have wavered slightly. It was difficult to keep the temperature of the warm water constant as it dipped at times which could have had an effect on how efficient the enzymes were. The delivery tubes were becoming blocked sometimes and by shaking the test tube it cleared them. However as we shook the test tube a large number of bubbles were formed which may not have formed if we didn't shake the test tube.
disaccharide, or double sugar. If more than two, such as hundreds and thousands bond, they form
Ions are atoms with an extra electron or a missing electron. But a normal atom would be neutral because it has the same number of electrons as the atomic number. If you are an atom and you are missing one electron, it does not mean that you are another atom, but you are not a complete atom either. You are something new, an ion. The goal of an atom is to be happy. If you have filled shells you are called stable. When you give up the extra electron you are attractive and other atoms want to bond with you. The two main types of bonding are covaent and electrovalent. Ionic bonds are really groups of charged ions held together by electric forces.
To determine the difference between sucrose and the corn syrup you can perform the Barfoed’s test because sucrose will fail the test because it is a non-reducing disaccharide while corn syrup will pass because corn syrup is a combination of glucose and
A molecule is a group of atoms that are bonded together. Some are covalently bonded and others are ionically bonded. For example, an organic compound is a compound that is covalently bonded(blue book). Because it is covalently bonded, it’s valence electrons are shared, instead of transferred, like an ionic bond. For examp...
A molecule is composed of only one element while a molecular compound contains multiple elements. These bonds can happen in a variety of ways, including hydrogen bonding, covalent bonding, and ionic bonding. Hydrogen bonding is the weakest bond, and it happens when hydrogen atoms already in a molecule interfere with the electrons of other atoms in other molecules. This normally happens between water molecules. Covalent bonds happen when atoms share one or more pairs of electrons to fill their outer shells. The more pairs of electrons that are shared, the stronger the bond is between the atoms. Ionic bonding happens when two oppositely charged become attracted to each other. One atom gives away an electron to have 8 outer electrons; this atom becomes
These forces may involve covalent or ionic bonding, or they may involve weaker interactions usually
Benedict’s test for reducing sugar results in colour changes from blue to green precipitate and lastly forms brick-red precipitate. In this case, Benedict’s solution which is aqueous solution of copper (II) sulphate, sodium carbonate and sodium citrate, used as a test of the presence of reducing sugar. Glucose is one of the reducing sugars. Functional group of aldehyde (CHO) and keto (C=O) are found in glucose. Benedict’s test will detect on functional group of aldehyde and keto. As glucose has this functional group, the Benedict’s test shows positive results by changing the colour of Benedict’s reagent from blue colour to green then to brick red precipitate. Therefore this test is semi quantitative. This is due Benedict’s reagent reduces copper (II) sulphate forming a precipitate of copper (I) oxide upon heating. Blue colour means no reducing sugar, green precipitate represents less sugar and brick red precipitate means more sugars form. Hence, intensity of colour indicates amount of sugar.
All things have bonds at a molecular scale. The same way that hair has different kinds of bonds in its composition. The
Detection of Biological Molecules Introduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, life wouldn't exist. These are the most abundant elements in living organisms. These elements are held together by covalent bonds, ionic bonds, hydrogen bonds, and disulfide bonds. Covalent bonds are especially strong, thus, are present in monomers, the building blocks of life.
A bond is a "security" which gives the holder a financial claim on the issuer. This claim protects the holder in circumstances in which the issuer is unable to pay the amount due. It is made formal by the "trust indenture", a legal document, which specifies all of the bond's features and the legal rights and obligations of all the parties to the agreement (http://www.finpipe.com/bndchar.htm).
The sugar is in a form of white or clear when it is refined from a raw state. It
the bonds. This behaviour can be explained with the content as discussed earlier, which is, an
This bonding happens when the hydrogen bonding is between H-atom of one molecule and an atom of any electronegative element of another molecule. For ex (i) hydrogen bonding between the molecules of hydrogen fluoride. (ii) hydrogen bonding in alcohols or molecules of water.