Cell Theory
Name one exception to cell theory.
What are viruses?
This organelle is known as the “control center” of the cell?
What is the Nucleus?
This structure separates the cell from its surroundings.
What is the plasma membrane?
This organelle is the site of aerobic respiration.
What is the mitochondrion?
These junctions hold cells together like reinforcement.
What are desmosomes?
Modern cell theory state this about the origin of new cells.
What is all cells come from cells
This structure inside the nucleus assembles ribosome subunits.
What is the nucleolus?
These holes in the nuclear envelope allow proteins and RNAs to move in and out.
What are nuclear pores?
This organelle is the site of photosynthesis.
What is the chloroplast?
These junctions prevent fluid movement between cells.
What are tight junctions?
This structure carries hereditary information passed during cell division.
What is DNA?
This organelle modifies, sorts, and packages proteins and lipids.
What is the Golgi apparatus?
Ribosomes attached to the ER make it this type of ER.
What is rough ER?
This theory explains the origin of mitochondria and chloroplasts.
What is the endosymbiont theory?
These junctions allow cytoplasmic communication between animal cells.
What are gap junctions?
These are the minimal set of structures required by all cells. (4)
What is Cell membrane, DNA, cytosol, and ribosomes?
This digestive organelle contains enzymes that break down large molecules.
What is the lysosome?
These vesicles store materials for later release from the cell.
What are secretory vesicles?
Circular DNA, prokaryote-type ribosomes, and binary fission are evidence for this theory.
What is the endosymbiont theory?
These plant structures connect cytoplasm between adjacent cells.
What are plasmodesmata?
These three scientists are credited with developing classical cell theory.
Who are Schleiden, Schwann, and Virchow
This organelle is responsible for lipid synthesis.
What is the smooth ER?
This vacuole in plants maintains turgidity and firmness.
What is the central vacuole?
This organelle allows dangerous oxidative reactions under controlled conditions.
What is the peroxisome?
This extracellular structure in animals allows attachment and protection.
What is the extracellular matrix?