Question

the images show the structures of two molecules found in the body: glucose and sialic acid. sialic acid is a sugar molecule that helps protect cells and aids in cell communication; it is often found on the surface of cells. part a which claim can be made regarding the molecules? sialic acid is made by modifying glucose with additional atoms and elements. glucose is made by combining molecules of sialic acid. glucose and sialic acid perform similar functions in the body. glucose and sialic acid work together to carry out a single function in the body.

Explanation:

By comparing the molecular - structures of glucose and sialic acid, sialic acid has additional atoms and functional groups compared to glucose. Glucose is a simple sugar and sialic acid is a more complex sugar molecule often found on cell - surfaces. Sialic acid is made by modifying glucose with additional atoms and elements. Glucose is not made by combining sialic acid molecules. Also, their functions are different as glucose is a main energy source and sialic acid is involved in cell protection and communication. They do not work together for a single function.

Answer:

Sialic acid is made by modifying glucose with additional atoms and elements.