NURSING EXAM QUESTIONS
BIOCHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
There are TWICE as many H
|
|
|
They are the same amount
|
|
|
There are THREE times as many H
|
|
|
There are TWICE as many O
|
Detailed explanation-1: -The name “carbohydrate” tells you something about the composition of these “hydrated carbon” compounds. They contain carbon, hydrogen and oxygen and like water (H2O), there are always twice as many hydrogen atoms as oxygen atoms in each molecule.
Detailed explanation-2: -Carbohydrates are organic compounds that are organized as ring structures and are always composed of the elements carbon, hydrogen, and oxygen. Carbohydrates are truly hydrates of carbon because the ratio of hydrogen atoms to oxygen atoms is always nearly 2:1, as in H2O. They also have many functions.
Detailed explanation-3: -Carbohydrates are a group of organic compounds containing a ratio of one carbon atom to two hydrogen atoms to one oxygen atom.
Detailed explanation-4: -This disaccharide, sucrose, has twice the number of hydrogen atoms as the number of oxygen atoms. 11. Two monosaccharide molecules are needed to form one sucrose molecule.