If questions like these reveal a weakness, fix it. The flow of your paper will be much smoother if you are careful and thoughtful about the transitions between the points you make. Let the reader know where this new material fits in relation to the material already presented. A number of devices are useful in communicating with your reader. Words that indicate temporal or spatial relationships are particularly helpful.
Spatial signals give information about position.
Even the most carefully organized ideas will have little affect on the reader, however, if poorly expressed. Reflect on how vivid the pictures in your head are as you move through the following series of images. Think about a sunflower in full bloom towering ten feet high, slowly waving in a warm breeze on a cloudless late-summer afternoon. Now imagine the cells packed one next to another within one petal of the sunflower. Now, the chemical reactions churning away within one of those cells.