Eed2601 assignment 4 questions and answersThe main structure of the plasma membrane is called the>>> phospholipid bilayer____ are thin, microscopic projections extending from the surface of the plasma membrane. They are smaller than cells>>> microvilliIdentify the parts of a cell>>> Identify the parts of a cellWhich statements characterize organelles?>>> They are generally located within cells; Each type of organelle has a specific function, They play roles in growth, repair, and cellular maintenanceGap junctions are bridge by proteins called>>> connexonsThe Na-K exchange pump is a special type of ion pump called an ____ pump because it moves one type of ion into a cell ____ its concentration gradient and another type of ion out of the cell ____ its concentration gradient.>>> exchange, against, againstForms of passive transport across cell membranes are>>> diffusion and osmosisPut the steps of transcription into order: elongation (RNA polymerase forms an RNA copy of the gene), initiation (DNA is unwound and RNA polymerase attaches to the promoter of the gene), and termination (the RNA strand is released from the DNA strand).>>> initiation (DNA is unwound and RNA polymerase attaches to the promoter of the gene), elongation (RNA polymerase forms an RNA copy