Biology Quiz: Cells and Loving Organisms
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Sept 2026
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24 Terms
Q: What is biology?
A: The study of organisms (living things).
What does it mean for an organism to maintain homeostasis?
It maintains a stable internal environment.
Q: What does it mean when an organism responds to its environment?
A: It reacts to changes or stimuli in its surroundings.
What is DNA?
The organism’s genetic code/material.
Q: What is the difference between unicellular and multicellular?
 A: Unicellular = one cell. Multicellular = many cells.
Q: What is a prokaryotic cell?
A simpler cell that does not have a nucleus or specialized membrane-bound organelles.
Q: What is a eukaryotic cell?
 A: A more complex cell that has a nucleus and specialized organelles.
Q: What is the biggest difference between prokaryotic and eukaryotic cells?
 A: Eukaryotic cells have a nucleus; prokaryotic cells do not.
Q: What do prokaryotic and eukaryotic cells have in common?
 A: Both have a cell membrane, cytoplasm, DNA, and ribosomes.
Q: Which organisms are prokaryotic?
 A: Bacteria and Archaea.
Q: Which organisms are eukaryotic?
 A: Plants, animals, fungi, and protists.
Q: What is a cell membrane’s function?
 A: It acts as a barrier, controlling what enters and leaves the cell.
Q: What is the function of ribosomes?
 A: They are the site of protein synthesis (they make proteins).
Q: What is the function of cytoplasm?
 A: It holds the cell’s components and helps protect them from damage.
Q: What is the function of mitochondria?
A: They produce the energy needed for the cell to survive and function.
Q: What is the function of the nucleus?
 A: It stores the cell’s DNA and acts as a control center.
Q: What is the function of lysosomes?
A: They contain digestive enzymes that break down worn-out cell parts and other materials.
Q: What is the function of a cell wall?
 A: It provides shape, support, and protection to plant cells.
Q: What is the function of chloroplasts?
A: They are the site of photosynthesis in plant cells.
Q: Which structures are found in animal cells but not prokaryotic cells?
 A: Animal cells have a nucleus, mitochondria, and other specialized membrane-bound organelles.
Q: Which structures are especially associated with plant cells?
 A: Cell wall and chloroplasts.
Q: What is an autotroph?
 A: An organism that makes its own food.
Q: What is a heterotroph?
A: An organism that gets its food/energy from another source rather than making its own food.