NURS 611||NURS611 Exam 1
QUESTION WITH VERIFIED
ANSWERS LATEST UPDATE 2024/2025
GRADED A+!!
Nucleus (CORRECT ANSWERS) 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 ANSWERS) 1)
deoxyribose
phosphate molecule
2) pyrimidine bases
3) purine bases
4) hydrogen bonds (stabilize the helix through large numbers)
what are Ribosomes? (CORRECT ANSWERS) 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 ANSWERS) Chief
function of ribosomes is to provide sites for cellular protein synthesis
,Golgi Complex (CORRECT ANSWERS) -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 ANSWERS) 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 ANSWERS) hydrogen
peroxide and other oxygen reactive species
Mitochondria (CORRECT ANSWERS) - 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 ANSWERS) -through
trickery!
-attaches to the cell and release and enzyme to facilitate entrance to the
cell
, -also by bacteria and parasites
Diffusion (CORRECT ANSWERS) passive
process by which molecules move from an area of high concentration to
an area of low concentration
facilitated diffusion (CORRECT ANSWERS) -needs help to enter the
cell
- ex: insulin attaches to a receptor to let glucose in
Active transport (CORRECT ANSWERS) -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 ANSWERS)
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 ANSWERS) apoptosis and
necrosis
apoptosis (CORRECT ANSWERS) a cell death that is regulated or
programmed. Cellular self-destruction for elimination of unwanted cell
populations
QUESTION WITH VERIFIED
ANSWERS LATEST UPDATE 2024/2025
GRADED A+!!
Nucleus (CORRECT ANSWERS) 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 ANSWERS) 1)
deoxyribose
phosphate molecule
2) pyrimidine bases
3) purine bases
4) hydrogen bonds (stabilize the helix through large numbers)
what are Ribosomes? (CORRECT ANSWERS) 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 ANSWERS) Chief
function of ribosomes is to provide sites for cellular protein synthesis
,Golgi Complex (CORRECT ANSWERS) -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 ANSWERS) 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 ANSWERS) hydrogen
peroxide and other oxygen reactive species
Mitochondria (CORRECT ANSWERS) - 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 ANSWERS) -through
trickery!
-attaches to the cell and release and enzyme to facilitate entrance to the
cell
, -also by bacteria and parasites
Diffusion (CORRECT ANSWERS) passive
process by which molecules move from an area of high concentration to
an area of low concentration
facilitated diffusion (CORRECT ANSWERS) -needs help to enter the
cell
- ex: insulin attaches to a receptor to let glucose in
Active transport (CORRECT ANSWERS) -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 ANSWERS)
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 ANSWERS) apoptosis and
necrosis
apoptosis (CORRECT ANSWERS) a cell death that is regulated or
programmed. Cellular self-destruction for elimination of unwanted cell
populations
