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Test Bank (Download Now) For Nuclear Medicine and Pet CT 8th Edition by Waterstram-Rich ISBN: 9780323356220

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Chapter 02: Cell and Molecular Biology
Waterstram-Rich: Nuclear Medicine and PET/CT: Technology and Techniques, 8th
Edition
MULTIPLE CHOICE
1. Which of the following is an organelle of a eukaryotic cell?
a. Photolipid
b. Cisternae
c. Centrosome
d. Endocyte
ANS: C
The centrosome is the main site of microtubule assembly in the cell and is therefore referred
to as the microtubule organizing center.
REF: p. 43
2. The large organelle often referred to as “the control center” of the cell is the
a. lysosome.
b. nucleus.
c. centrosome.
d. Golgi body.
ANS: B
The nucleus is the large organelle that is often referred to as “the control center” of the cell.
REF: p. 43
3. An organelle composed of a network of interconnected, closed, membrane-bounded vesicles
that extend from the nucleus to the cell membrane is the
a. Golgi body.
b. endoplasmic reticulum.
c. centrosome.
d. lysosome.
ANS: B
The endoplasmic reticulum (ER) is an organelle composed of a network of interconnected,
closed, membrane-bounded vesicles that extend from the nucleus to the cell membrane.
REF: p. 42
4. Phagocytosis, endocytosis, and autophagy are processes that are performed by the
a. Golgi bodies.
b. ribosomes.
c. nucleus.
d. lysosomes.
ANS: D
Lysosomes degrade extracellular materials taken up by the cell through three main processes;
phagocytosis, endocytosis, and autophagy