MDC 2 Exam 1 Questions with Complete Solutions

MDC 2 Exam 1 Questions with Complete Solutions Biology of Normal Cells -Answer-Live, function, replicate and Die- (apoptosis),Specific morphology Small nuclear-to-cytoplasmic ratio Differentiated function Tight adherence, Non-migratory Orderly and well-regulated growth (cellular regulation) Mitosis Contact inhibition Apoptosis Normal chromosomes (euploidy) Benign versus Malignant Cell Growth -Answer-Common Benign—Harmless; does not usually require intervention on types of altered cell growth Malignant—Indicates cancer; serious and can lead to death without intervention Biology of Abnormal Cells -Answer-Benign Tumor Cells- Normal cells growing in the wrong place or at the wrong time Result of small problem with cellular regulation Moles, uterine fibroid tumors, skin tags, endometriosis, nasal polyps Features of Benign Tumor Cells -Answer-Specific morphology Small nuclear-to-cytoplasmic ratio Specific differentiated functions Tight adherence No migration Orderly growth Normal chromosomes Cancer Cells -Answer-Abnormal Serve no useful function Harmful to normal body tissues Features of Cancer Cells -Answer-Anaplasia Large nuclear-to-cytoplasmic ratio Specific functions lost Loose adherence Migration (metastasis) No contact inhibition Rapid or continuous cell division Abnormal chromosomes (aneuploidy) Cancer Development -Answer-Carcinogenesis/oncogenesis = cancer development Malignant transformation occurs thro