discussion 1

1606 words 7 pages
Chapter 1: Cell Pathology
1-1
Which of the following accounts for differences in cells in a human body?
Differences in chromatin
Differences in chromosomes
Differential content of DNA
Differential expression of genes

1-2
Which of the following structures is not normally found in the cytoplasm of a resting cell?
DNA
Messenger RNA (mRNA)
Ribosomal RNA (rRNA)
Transfer RNA (tRNA)

1-3
Which of the following cytoplasmic organelles are not found in most all nucleated cells?
Endoplasmic reticulum
Golgi apparatus
Mitochondria
Myofilaments

1-4
Which of the following is the primary purpose of mitochondria?
Maintenance of cell shape
Modification of proteins
Production of energy
Replication of cellular structures

1
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Cellular material builds up in lysosomes and crowds out other organelles
Cytokines build up in the cell until the cell bursts open
Exotoxins reproduce in the cell until the cell becomes full and bursts
Immune cells recognize bacteria in the cell and phagocytose the entire cell

1-18
A 32-year-old male falls off a horse and sustains a broken neck. He becomes paralyzed from the neck down and stays in bed for a year. He has lost 4 inches in circumference in his biceps during this year. This is best described as which of the following?
Pathologic apoptosis
Pathologic atrophy
Physiologic apoptosis
Physiologic atrophy

Spinal cord injury pg. 12

1-19
Which of the following substances tags a protein to be destroyed in the proteasome?
Adenosine triphosphate
Cytokine
Interleukin
Ubiquitin

5

1-20
A 65-year-old male has had uncontrolled hypertension for 30 years. As a result there are twice as many fibroblast cells (all of normal size) in his aorta than 30 years ago. This is best described as which of the following?
Dysplasia
Hyperplasia
Hypertrophy
Metaplasia

Increased number of cells = twice as many with hyperplasia there is only increase in size pg. 13

1-21
Which of the following best describes cellular death after the person has died?
Anaplasia
Apoptosis
Autolysis

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