Which of the following terms does not apply to organisms in the Phylum Amoeboza?
a. chlorophyll.
b. phagocytosis.
c. pseudopodia.
d. slime mold.
a
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When a potassium ion (K+) moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several cellular structures. Which of the following correctly describes the order in which these structures will be encountered by the
ion? A) plasma membrane ? primary cell wall ? cytoplasm ? vacuole B) secondary cell wall ? plasma membrane ? primary cell wall ? cytoplasm ? vacuole C) primary cell wall ? plasma membrane ? cytoplasm ? vacuole D) primary cell wall ? plasma membrane ? lysosome ? cytoplasm ? vacuole E) primary cell wall ? plasma membrane ? cytoplasm ? secondary cell wall ? vacuole
A nucleated, green cell that moves by means of flagella is a(n)
A) Alga. B) Bacterium. C) Fungus. D) Helminth. E) Virus.
Conjugation in most ciliates involves a series of steps that leads to increased genetic diversity. Which one of the following choices is not one of those steps?
A. sexual reproduction B. meiosis of a haploid nucleus C. mitosis of a haploid nucleus D. mitosis of a diploid nucleus E. meiosis of a diploid nucleus
Phagocytosis involves movement of the cell surface by
a. actin-based motility. b. microtubule-based motility. c. clathrin-based vesicle formation. d. dynamin-based vesicle formation