BIOMOLECULES AND ENZYMES

BIOLOGY

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which organic molecule serves as the main source of energy for cells?
A
amino acids
B
glucose
C
proteins
D
starch
Explanation: 

Detailed explanation-1: -Adenosine 5’-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups.

Detailed explanation-2: -Carbohydrates are organic molecules composed of carbon, hydrogen, and oxygen, usually in a ratio of 1:2:1. Carbohydrates include sugars, starch, cellulose, and glycogen. Carbohydrates are the primary sources of energy for most organisms. The sugar glucose is the main source of energy for cells.

Detailed explanation-3: -Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

Detailed explanation-4: -Glucose is the main type of sugar in the blood and is the major source of energy for the body’s cells. Glucose comes from the foods we eat or the body can make it from other substances. Glucose is carried to the cells through the bloodstream.

There is 1 question to complete.