At the beginning of cellular respiration occurs, where glucose is broken down into pyruvate and ATP. This step does not require any oxygen.

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell