The principal energy-storage molecule in most plants is

What are the main energy storage molecules of plants and animals?

Name the principal energy storage molecules of plants and animals. Plants -> All energy stored by starch. Animals -> Energy stored in glycogen (made in the liver.) Distinguish between a protein and a polypeptide. Protein -> A Explain how a peptide bond forms between two amino acids.

Which molecule is the most abundant energy carrier molecule in cells?

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. The word adenosine refers to the adenine plus the ribose sugar. The bond between the second and third phosphates is a high-energy bond (Figure 5).

Is ATP a storage molecule?

ATP is not a storage molecule for chemical energy; that is the job of carbohydrates, such as glycogen, and fats. When energy is needed by the cell, it is converted from storage molecules into ATP. ATP then serves as a shuttle, delivering energy to places within the cell where energy-consuming activities are taking place.

Why do cells need a constant supply of energy?

Molecular Biology of the Cell. 4th edition. 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.

How do plants store energy during photosynthesis?

Likewise, plants capture and store the energy they derive from light during photosynthesis in ATP molecules. ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups. These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.

What is the main energy source for photosynthetic cells?

Figure 1: For photosynthetic cells, the main energy source is the sun. For photosynthetic cells, the main energy source is the sun. © 2010 Nature Education All rights reserved. Cells, like humans, cannot generate energy without locating a source in their environment.