EXAM 1: NURS 611 Questions with Complete Solutions
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Course
NUR 611
Institution
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
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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