NURS 611 EXAM 1 VERIFIED
QUESTIONS AND ANSWERS LATEST
UPDATE 2026
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)
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 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 membranebound 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
QUESTIONS AND ANSWERS LATEST
UPDATE 2026
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)
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 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 membranebound 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
