Which of the following expressions represents the ratio of the surface area of a cylinder to the surface area of a sphere with the same radius, r?

The ratio of the surface area of a cylinder to the surface area of a sphere is , that is mentioned in option E.

Step-by-step explanation:

The given is,

                Cylinder and sphere has same area.

Step: 1

               Formula for surface area of cylinder,

                                 .............................(1)

               Where, r - Radius of cylinder

                           h - Height of cylinder

Step:2

              Formula for surface area of sphere,

                                .......................................(2)

              Where, r - Radius of sphere

Step:3

             Ratio of the surface area of a cylinder to the surface area of a sphere,

              Ratio of the surface area of a cylinder to the surface area of a sphere   .

Result:

              The ratio of the surface area of a cylinder to the surface area of a sphere is , that is mentioned in option E.

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.