What type of cell would have an abundance of lysosomes?
A. liver cells that detoxify hydrogen peroxide
B. fibroblast (makes protein fibers)
C. white blood cell, a phagocyte
D. cardiac muscle cells (require large amounts of ATP)
E. mucus cell (secretes mucus)
C
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Of the organelles below which occurs in the lowest numbers within a typical human cell?
a. mitochondria. b. ribosomes c. peroxisomes. d. lysosomes. e. nuclei.
Define diffusion
A) The passive movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is achieved. B) The passive movement of molecules from an area of lower concentration to an area of higher concentration until equilibrium is achieved. C) The active movement of molecules from an area of higher concentration to an area of lower concentration using energy. D) The active movement of molecules from an area of lower concentration to an area of higher concentration using energy. E) The vesicular transport of large molecules out of a cell.
In which of the following would the blood flow be highest?
A) a vessel 0.5 cm in diameter and 2 meters long B) a vessel 1.0 cm in diameter and 10 meters long C) a vessel 0.5 cm in diameter and 4 meters long D) a vessel 1.0 cm in diameter and 2 meters long
Red bone marrow is the point of origin of all immune cells of the lymphatic system.
Answer the following statement true (T) or false (F)