BIO 320 Q2

True

Aging is considered a cause of cell injury.

d. Clogging of nuclear pores

All of the following are accepted mechanisms of cellular aging, except: a. DNA damage b. Accumulated metabolic damage c. Progressive shortening of telomeres d. Clogging of nuclear pores

True

True or False: In some circumstances, restoration of blood flow to ischemic tissue can paradoxically accelerate tissue injury.

True

True or False: Melanin protects skin against long exposure to sunlight and helps to prevent skin cancer.

True

True or False: The most common cause of hypoxia is ischemia.

False

True or False: Dysplasia is a common type of normal cellular adaptation.

False

True or False: Hypertrophy and hyperplasia rarely occur together.

True

True or False: Mitochondrial damage may lead to necrosis or apoptosis.

a. A programmed cell death of scattered, single cells

Which is a description of the characteristics of apoptosis? a. A programmed cell death of scattered, single cells b. Results in benign malignancies c. Has unpredictable patterns of cell death d. Characterized by swelling of the nucleus and cytoplasm

a. Necrosis

Which of the following is NOT considered a reversible cellular injury? a. Necrosis b. Ischemia c. Fatty Change d. Cellular swelling