Question

what is one type of molecule that needs to be concentrated within the cell? glucose bromide carbon dioxide

Explanation:

Glucose is an essential energy - providing molecule for cells. Cells need to concentrate glucose as it is used in cellular respiration (e.g., glycolysis) to produce ATP. Bromide is not a molecule that cells typically need to concentrate for normal cellular function. Carbon dioxide is a waste product of cellular respiration (in non - photosynthetic cells) and is usually transported out of the cell rather than concentrated within.

Answer:

glucose