If there is not enough carbohydrate intake, how does the body form glucose?

When there isn't enough readily available glucose from the breakdown of carbohydrate, the body first turns to stored carbohydrate reserves (glycogen). If there's still no new intake of carbohydrate and the reserves are depleted, the body is forced to use alternative sources (fat and protein) for energy.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.