adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.
ATPAdenosine 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.
Adenosine triphosphate (ATP)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.
MitochondriaMitochondria Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions.
CarbohydratesAbstract. Carbohydrates are the main energy source of the human diet. The metabolic disposal of dietary carbohydrates is direct oxidation in various tissues, glycogen synthesis (in liver and muscles), and hepatic de novo lipogenesis.
Why is glucose the primary energy source for cells? A) It can be efficiently stored as glycogen, which forms compact, insoluble granules.
The main source of energy in cellular respiration is glucose.
chemical energyThe form of energy that is in ATP is called chemical energy. Chemical energy is a type of potential energy and is stored energy within chemical bonds. ATP, adenosine triphosphate, is a molecule with an adenine nucleotide attached to three phosphate groups. The bonds between the phosphate groups store the energy in ATP.
Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.
The major energy currency molecule of the cell is ATP.
ATPThe cell has a special kind of molecule for storing that energy, and it's called ATP. ATP (Adenosine tri-phosphate) is an important molecule found in all living things. Think of it as the “energy currency” of the cell.
As we have just seen, cells require a constant supply of energy to generate and maintain the biological order that keeps them alive. This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells.
ATP Adenosine 5'-triphosphateAdenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank.
During cellular respiration in the presence of oxygen (described later), electron carriers ferry these electrons to the electron transport chain, which requires oxygen to accept the electrons as they leave the chain. This process results in the production of a large quantity of ATP.