discussion 1

Topics: Inflammation, Organelle, Cell Pages: 0 (1613 words) Published: September 5, 2014
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

1-5
Protein X is needed to help maintain two other proteins, both of which only exist in the cytoplasm of the cell. Where is protein X most likely synthesized? Free ribosome
Nucleus
Rough endoplasmic reticulum
Smooth endoplasmic reticulum

1-6
A new cell line is developed that completely lacks a smooth endoplasmic reticulum. Which of the following functions would these cells be incapable of performing? Degrading endocytosed materials
Maintaining cellular shape
Making new proteins
Synthesizing steroid hormones

1-7
Which of the following is one of the functions of lysosomes? Catabolism of hormones
Digesting other cellular organelles
Glycosylating protein products
Maintaining cellular structure

1-8
Which of the following does NOT have the same biochemical composition in all cells? Intermediate filaments
Microfilaments
Microtubules
Nuclear membrane

2

1-9
Which of the following is true regarding the cytoplasmic surface of the plasma membrane? It is contiguous with the Golgi apparatus
It is in constant contact with the external world
It serves as an anchor point for cytoskeletal filaments
It serves as the primary site for energy production

1-10
Cell A secretes substance 1. Substance 1 is taken up two...
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