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7.2 Biology Vocab

Across
Are small organelles filled with enzymes
Proteins produced in the rough ER move next into the organelle
Are the biological equivalents of solar power plants
Gives cell membranes a flexible structure that forms a strong barrier between the cell and its surroundings
Store materials like water, salts, proteins, and carbohydrates
Cells contain an internal membrane system
Are located near the nucleus and help organize cell division
Down
That some substances can pass across them and others cannot
Are small particles of RNA and protein found throughout the cytoplasm in all cells
Cells are given their shape and internal organization by a network of protein filaments
Little organs
Are the power plants of the cell
Is the portion of the cell outside the nucleus
Produce a strong supporting layer around the membrane