Questions All Solved Correct 2025 -
2026 Updated.
Define Cell - Answer The smallest unit of Life.
What were the contributions of Leeuwnhoek, Hooke, Schleiden, Schwann, Brown, and Virchow?
- Answer Leeuwnhoek- one of the first person to observe
single celled organism
Hooke- Coined the term "cell"
Schleiden- All plants are composed of cells
Schwann- All Plants are composed of cells (sounds like swann)
Brown- First person to observe the nucleus of a cell
Virchow- Cells come only from preexisting cells
What is cell Theory? - Answer Cells are capable of self reproductions cell only come from
preexisting cells, the cell is the basic unit of life. All organisms are composed of one or more
cells.
Compare/contrast plasma membrane and cell wall. - Answer Plasma membrane: All cells are
surrounded by a plasma membrane that separates the contents of the cell from the outside
environment. the plasma membrane regulates the usage of molecules and ions into and out of
the cell.
The Cell Wall: some, but not all cells have a cell wall that lies outside the plasma membrane.
The cell wall has a structural function and usually contains cellulose. **Animal cells do NOT
have cell walls.
What is cytoplasm? Cytosol? - Answer Cytoplasm: all of the contents of a cell that lies inside
the plasma membrane and outside the nuclear membrane.
Cytosol: The semi-fluid portion of the cytoplasm
Distinguish between eukaryotic and prokaryotic cells - Answer Eukaryotic cells are those the
have a membrane bound nucleus. ex. plants, protists, fungi, plants, animals
Prokaryotic cells are bacteria that Do NOT have a membrane-bound nucleus instead they have a
, What are the characteristics of a prokaryotic cell? - Answer
Explain the importance of compartmentalization to eukaryotic cells. - Answer
Golgi apparatus - Answer stack of membranous saccules. Function is to process package and
distribute molecules about or from the cel
Vacuoles and vesicles - Answer membranous sacs, function is storage of substances
Lysosomes - Answer membranous vesicles containing digestive enzymes function is
intracellular digestion
Define microbodies, and the two types Peroxisomes, Glyoxysomes - Answer Microbodies
membranous vesicles containing specific enzymes function in various metabolic tasks
Peroxisomes- microbodies found in liver and kidneys that break down alcohol into h202→
hydrogen peroxide and then into water
Glyoxysomes- microbodies found in the seeds of plants. The enzymes in glyoxysomes break
down lipids into carbohydrates the sugars fuel the germination of seeds.
Define Mitochondria - Answer Double membrane bound organelles inner membrane folded
inward to form cristae which project into the matrix. Function is energy (ATP) production for cell
and cellular respiration. Power House of the Cell
Define Chloroplasts - Answer Double membrane bound organelle with a 3rd membrane
insides these 2. Thylakoids stacked grana (one stack is granum) function is photosynthesis.
What is the endosymbiotic hypothesis? - Answer Mitochondria & chloroplasts were
originally thought to have been free living prokaryotic cells which took up residence inside
eukaryotes a symbiotic relationship called mutualism was established.
What is the function of the Cytoskeleton, microtubules, centrioles? - Answer Cytoskeleton:
networic of protein elements extending throughout the cytosol, function in maintaining cell
shape & movement of cell parts
Microtubules: The protein elements that make up the cytoskeleton, centrioles, cilia, & flagella