Answer to Question 1
B
Some normal tissues increase in size by having individual cells get larger, a process called hypertrophy. Cancer cells are usually small and always grow by hyperplasia, not hypertrophy. The other features listed are characteristics that are associated with cancer cells and not normal differentiated cells.
Answer to Question 2
B, C, F
Not touching the tip of the applicator either with your hand or the patient's eye structures pre-vents contaminating the drug tube and the eye. Using separate drug tubes for the right and left eyes prevents spreading infection from one eye into the other eye. The drug area that is most likely to be contaminated is the first half inch squeezed from the tube. By discarding this portion, the risk for infection is reduced. Removing contact lenses prevents the drug from harming the lens and ensures better distribution of the drug; waiting 10 minutes between drug applications prevents one drug from diluting the next drug and also helps prevent drug interactions; perform-ing punctal occlusion after instilling eye drugs (especially eye drops) helps ensure the drug re-mains in the eye longer to have a better effectnone of these actions help reduce the risk for in-fection.
A comparison of the sizes of various chemical and biological structures, and the resolving power of
Examples of cell-to-cell communication based on the distance between cells
Cells involved in specific immunity in vertebrates.
Biological Information Flow
Intracellular relationships involving the glyoxylate cycle in plant cells
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf