CSU LIFE 102 PRACTICE SET 2026 CELL
BIOLOGY AND ECOLOGY QUESTIONS
HIGH YIELD A+
◉ Which organelle is responsible for digesting food that comes into
the cell, as well as breaking down damaged cellular parts
Answer: lysosomes
◉ Which of the following is a compartment that often takes up much
of the volume of a plant cell
Answer: central vacuole
◉ which kind of cytoskeletal fiber makes up cilia and flagella
Answer: microtubules
◉ Ions can travel directly from the cytoplasm of one animal cell to
the cytoplasm of an adjacent cell through:
Answer: cell junctions
◉ cell junctions in plants are called
Answer: plamsmodesmata
,◉ The liver is involved in detoxification of many poisons and drugs.
Which structure is primarily involved in this process and therefore,
abundant in liver cells
Answer: Smooth ER
◉ True or false: Chloroplasts and mitochondria have their own
circular DNA that is seperate from the DNA found in the nucleus of
the cell
Answer: True
◉ True or false: water can use passive transport to cross a
membrane via osmosis by use of aquaporins. This process does not
require energy
Answer: True
◉ A molecule needs to get across the cell membrane, and must be
transported using active transport. What is required to complete
this transport
Answer: Energy
◉ Cell membranes are made up of two main types of molecules :
Answer: phospholipids and protiens
, ◉ A cell is moved from a higher to a lower temperature; what
happens to the membrane ?
Answer: the membrane becomes viscuous (thick and stiff)
◉ What mechanism can the cell use to transport items out of the cell
if those items are too big to travel through transport protiens?
Answer: Endocytosis
◉ Kinetic energy:
Answer: energy associated w moving objects: Heat (moving atoms/
molecules), light (Moving photons)
◉ Potential energy
Answer: Associated with the location/ structure of an object (can
transform to kinetic energy)
& CHEMICAL ENERGY (stored in the bonds of molecules- pot energy
transformed when bonds break)
◉ 1st law of thermodynamics
Answer: energy of the universe is CONSTANT from galaxies to cells
◉ 2nd Law of thermodynamics
Answer: Entropy (disorder) if the universe is always increasing
BIOLOGY AND ECOLOGY QUESTIONS
HIGH YIELD A+
◉ Which organelle is responsible for digesting food that comes into
the cell, as well as breaking down damaged cellular parts
Answer: lysosomes
◉ Which of the following is a compartment that often takes up much
of the volume of a plant cell
Answer: central vacuole
◉ which kind of cytoskeletal fiber makes up cilia and flagella
Answer: microtubules
◉ Ions can travel directly from the cytoplasm of one animal cell to
the cytoplasm of an adjacent cell through:
Answer: cell junctions
◉ cell junctions in plants are called
Answer: plamsmodesmata
,◉ The liver is involved in detoxification of many poisons and drugs.
Which structure is primarily involved in this process and therefore,
abundant in liver cells
Answer: Smooth ER
◉ True or false: Chloroplasts and mitochondria have their own
circular DNA that is seperate from the DNA found in the nucleus of
the cell
Answer: True
◉ True or false: water can use passive transport to cross a
membrane via osmosis by use of aquaporins. This process does not
require energy
Answer: True
◉ A molecule needs to get across the cell membrane, and must be
transported using active transport. What is required to complete
this transport
Answer: Energy
◉ Cell membranes are made up of two main types of molecules :
Answer: phospholipids and protiens
, ◉ A cell is moved from a higher to a lower temperature; what
happens to the membrane ?
Answer: the membrane becomes viscuous (thick and stiff)
◉ What mechanism can the cell use to transport items out of the cell
if those items are too big to travel through transport protiens?
Answer: Endocytosis
◉ Kinetic energy:
Answer: energy associated w moving objects: Heat (moving atoms/
molecules), light (Moving photons)
◉ Potential energy
Answer: Associated with the location/ structure of an object (can
transform to kinetic energy)
& CHEMICAL ENERGY (stored in the bonds of molecules- pot energy
transformed when bonds break)
◉ 1st law of thermodynamics
Answer: energy of the universe is CONSTANT from galaxies to cells
◉ 2nd Law of thermodynamics
Answer: Entropy (disorder) if the universe is always increasing
