Lipid - <span>any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
Its plays the role of storing energy or forming cell membranes alone.</span>
It belongs to the Consumers group
Carbohydrate is a group of compounds that is comprised of very simple units of sugar called the monosaccharide. From the prefix "mono", this means that the simplest unit is composed only of one block of sugar. Monosaccharide examples include: glucose, galactose, and fructose. From the given lists above, the one that does not match perfectly is the fourth pair. Glycogen is a multibranched polysaccharide.
ANSWER: glycogen - monosaccharide
The surface area to the volume ratio gets smaller as the cell gets larger. If the cell grows beyond a certain limit not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
Hope that helps