Ch End 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Selective cellular permeability and structural stability are provided by | Membrane proteins
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| Rough endoplasmic reticulum is important in | synthesizing and assembling proteins
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| The fundamental subunit of chromatin composed of ~180 base pairs of DNA wrapped around a histone protein is called | nucleolus
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| Condensation of chromosomes occurs during which phase of mitosis? | prophase
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| Cells that have excited the cell cycle and entered a nonproliferative phase are said to be in: | quiescence
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| The regulatory subunit of the active enzyme complex responsible for regulating passage through the various phases of the cell cycle is | cyclin
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| The point in the cell cycle at which cell proliferation (cycling) no longer depends on the extracellular signales is: | R
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| Programmed cell death (cell suicide) is also known as: | apoptosis
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| Are considered initiators of apoptosis: | death cytokines, loss of matrix attatchment, and cell damaging stress
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| Events in hematopoiesis that are regulated by apoptosis | Removal of excess neutrophils following cessation of bacterial challenge.
Removal of excess B lymphocytes following immune stimulation.
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