, 10/1/24, 2:02 PM NURS 611 EXAM 1 PATHO MOST RECENT ACTUAL EXAM 2024-2025 COMPLETE QUESTIONS AND CORRECT DETAILE…
contains the nucleolus, a small dense structure
composed largely of RNA, most of the cellular DNA,
Nucleus
and the DNA-binding proteins, the histones, that
regulate its activity
1) deoxyribose
phosphate molecule
What 4 elements is DNA 2) pyrimidine bases
composed of? 3) purine bases
4) hydrogen bonds (stabilize the helix through large
numbers)
RNA-protein complexes (nucleoproteins) that are
synthesized in the nucleolus and secreted into the
what are Ribosomes?
cytoplasm through pores in the nuclear envelope
called nuclear pore complexes (NPCs)
What is the chief function Chief function of ribosomes is to provide sites for
of Ribosomes cellular protein synthesis
-network of flattened, smooth membranes and vesicles
frequently located near the nucleus of the cell.
-Proteins from the ER are processed and packaged
Golgi Complex
into small membrane-bound sacs or vesicles called
secretory vesicles.
- refining plant and directs traffic into the cell.
maintain cellular health
- efficient removal of toxic cellular components
Lysosomes -if damaged, will release and cause AUTODIGESTION
-removal of useless organelles
- signals cellular adaptation
what do Peroxisomes hydrogen peroxide and other oxygen reactive species
contain?
- responsible for cellular respiration and energy
production.
Mitochondria -THINK ATP (energy) - ATP functions as the energy-
transferring molecule.
- urea and heme synthesis
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