HSCO 502 TESTS 1 2 AND 3 REVIEW STUDY
SHEET 2026 ACCURATE RESPONSES FULL
SOLUTION
◉ 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
SHEET 2026 ACCURATE RESPONSES FULL
SOLUTION
◉ 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
