<span>Rough ER is called rough because it has ribosomes attached to its surface. The double membranes of smooth and rough ER form sacs called cisternae. Protein molecules are synthesized and collected in the cisternal space/lumen. When enough proteins have been synthesized, they collect and are pinched off in vesicles.</span>
Hemoglobin is the pigment in red blood cells responsible for carrying oxygen
Colony, cell is the answer also u can use quizlet to help you find the answers
Answer:
Osmosis
Explanation:
Water moves across cell membranes by diffusion, in a process known as osmosis.