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EXAM 1: NURS 611 Questions with Complete Solutions

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  • Course
  • NUR 611
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  • NUR 611

EXAM 1: NURS 611 Questions with Complete Solutions Nucleus CORRECT ANS-contains the nucleolus, a small dense structure composed largely of RNA, most of the cellular DNA, and the DNA-binding proteins, the histones, that regulate its activity

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  • September 1, 2024
  • 34
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NUR 611
  • NUR 611
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EXAM 1: NURS 611 Questions with Complete
Solutions


Nucleus CORRECT ANS-contains the nucleolus, a small dense structure composed largely of

RNA, most of the cellular DNA, and the DNA-binding proteins, the histones, that regulate its

activity




What 4 elements is DNA composed of? CORRECT ANS-1) deoxyribose


phosphate molecule


2) pyrimidine bases


3) purine bases


4) hydrogen bonds (stabilize the helix through large numbers)




what are Ribosomes? CORRECT ANS-RNA-protein complexes (nucleoproteins) that are

synthesized in the nucleolus and secreted into the cytoplasm through pores in the nuclear

envelope called nuclear pore complexes (NPCs)




What is the chief function of Ribosomes CORRECT ANS-Chief function of ribosomes is to

provide sites for cellular protein synthesis

, EXAM 1: NURS 611 Questions with Complete
Solutions




Golgi Complex CORRECT ANS--network of flattened, smooth membranes and vesicles

frequently located near the nucleus of the cell.


-Proteins from the ER are processed and packaged into small membrane-bound sacs or

vesicles called secretory vesicles.


- refining plant and directs traffic into the cell.




Lysosomes CORRECT ANS-maintain cellular health


- efficient removal of toxic cellular components


-if damaged, will release and cause AUTODIGESTION


-removal of useless organelles


- signals cellular adaptation




what do Peroxisomes contain? CORRECT ANS-hydrogen peroxide and other oxygen

reactive species

, EXAM 1: NURS 611 Questions with Complete
Solutions


Mitochondria CORRECT ANS-- responsible for cellular respiration and energy production.


-THINK ATP (energy) - ATP functions as the energy-transferring molecule.


- urea and heme synthesis




How does a virus get into a cell? CORRECT ANS--through trickery!


-attaches to the cell and release and enzyme to facilitate entrance to the cell


-also by bacteria and parasites




Diffusion CORRECT ANS-passive


process by which molecules move from an area of high concentration to an area of low

concentration




facilitated diffusion CORRECT ANS--needs help to enter the cell


- ex: insulin attaches to a receptor to let glucose in

, EXAM 1: NURS 611 Questions with Complete
Solutions


Active transport CORRECT ANS--movement of a solute molecule from an area of low

concentration to an area of high concentration


- going against the gradient needs energy




What cells in our body cannot reproduce? CORRECT ANS-neurons, heart cells, skeletal

muscle cells, red blood cells


-they do not reproduce or transform, but some can be created by the body




Main types of cell death? CORRECT ANS-apoptosis and necrosis




apoptosis CORRECT ANS-a cell death that is regulated or programmed. Cellular self-

destruction for elimination of unwanted cell populations




Necrosis CORRECT ANS-characterized by rapid loss of the plasma membrane structure,

organelle swelling, mitochondrial dysfunction

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