NUR 502 UPDATED SCRIPT 2026 PRACTICE
SOLUTIONS GRADED A+
● Organelles. Answer: •Perform work maintaining the cell's life
● Nucleus. Answer: •Control center containing all genetic information
● Cell membrane. Answer: •Semipermeable boundary containing the
cell and its components
● Cellular permeability. Answer: •Ability to allow some substances
passage through membrane while stopping others
● Diffusion. Answer: •Movement of solutes from higher concentration
to lower concentration area
•May be simple or facilitated
● Facilitated diffusion. Answer: •Occurs with assistance of a transport or
carrier protein
● Active transport. Answer: •Active transport
•Movement from lower to higher concentration area
•Can be primary or secondary
,•Involves a carrier molecule (usually in form of ATP)
● Endocytosis. Answer: Bringing substances into a cell that are too large
to enter by other mechanisms
•Phagocytosis and Pinocytosis
*uses atp
● Exocytosis. Answer: •Release of materials from cell onto the cell
membrane
•Usually with assistance from a vesicle
*uses ATP
● Osmosis. Answer: •Movement of solvent across cellular membrane
from low- to high-solute area
•Usually continues until concentrations of the solute equalize
•Affected by:
•Osmotic pressure
•Hydrostatic pressure
•Colloid osmotic pressure (oncotic pressure)
● Nucleus. Answer: •Control center of the cell
•All eukaryotic cells have at least 1
•DNA- genes- instruction for cell function
, •Synthesis of 3 main subtypes of RNA
•Messenger RNA
•Ribosomal RNA
•Transfer RNA
● Ribosome. Answer: Site of protein synthesis
● Rough Endoplasmic Reticulum. Answer: •Makes proteins such as
digestive enzymes for lysosomes
•Ribosomes are attached and give a 'rough' appearance under the
microscope
● Smooth Endoplasmic Reticulum. Answer: •Free of ribosomes, thus no
protein synthesis
•Makes lipids (steroid hormones for example)
•Involved in some storage
● Golgi complex. Answer: •Flat vesicles
•Packages proteins and substances
•Uses secretory granules
•Retrograde transport - receive packages from cell surface
● Lysosomes. Answer: •Digestive system of the cell
SOLUTIONS GRADED A+
● Organelles. Answer: •Perform work maintaining the cell's life
● Nucleus. Answer: •Control center containing all genetic information
● Cell membrane. Answer: •Semipermeable boundary containing the
cell and its components
● Cellular permeability. Answer: •Ability to allow some substances
passage through membrane while stopping others
● Diffusion. Answer: •Movement of solutes from higher concentration
to lower concentration area
•May be simple or facilitated
● Facilitated diffusion. Answer: •Occurs with assistance of a transport or
carrier protein
● Active transport. Answer: •Active transport
•Movement from lower to higher concentration area
•Can be primary or secondary
,•Involves a carrier molecule (usually in form of ATP)
● Endocytosis. Answer: Bringing substances into a cell that are too large
to enter by other mechanisms
•Phagocytosis and Pinocytosis
*uses atp
● Exocytosis. Answer: •Release of materials from cell onto the cell
membrane
•Usually with assistance from a vesicle
*uses ATP
● Osmosis. Answer: •Movement of solvent across cellular membrane
from low- to high-solute area
•Usually continues until concentrations of the solute equalize
•Affected by:
•Osmotic pressure
•Hydrostatic pressure
•Colloid osmotic pressure (oncotic pressure)
● Nucleus. Answer: •Control center of the cell
•All eukaryotic cells have at least 1
•DNA- genes- instruction for cell function
, •Synthesis of 3 main subtypes of RNA
•Messenger RNA
•Ribosomal RNA
•Transfer RNA
● Ribosome. Answer: Site of protein synthesis
● Rough Endoplasmic Reticulum. Answer: •Makes proteins such as
digestive enzymes for lysosomes
•Ribosomes are attached and give a 'rough' appearance under the
microscope
● Smooth Endoplasmic Reticulum. Answer: •Free of ribosomes, thus no
protein synthesis
•Makes lipids (steroid hormones for example)
•Involved in some storage
● Golgi complex. Answer: •Flat vesicles
•Packages proteins and substances
•Uses secretory granules
•Retrograde transport - receive packages from cell surface
● Lysosomes. Answer: •Digestive system of the cell
