Chapter 4.5: Mitochondria and Chloroplasts: Cellular Generators Flashcards
Define mitochondria
the organelle called the powerhouse of the cell
What is the organelle called the powerhouse of the cell?
mitochondria
How does the mitochondria increase surface area?
o The inner membrane of the mitochondrion is shaped into folds called cristae that greatly increase the surface area
Define matrix
the solution in the interior space surrounded by the cristae that contains the enzymes and other molecules involved in oxidative respiration
What is the solution in the interior space surrounded by the cristae that contains the enzymes and other molecules involved in oxidative respiration?
matrix
Define intermembrane space
the outercompartment of a mitochondrion that lies between the two membranes
What is the outercompartment of a mitochondrion that lies between the two membranes?
intermembrane space
Define chloroplast
a cell-like organelle present in algae and plants that contains chlorophyll (and usually other pigments) and carries out photosynthesis
What is a cell-like organelle present in algae and plants that contains chlorophyll (and usually other pigments) and carries out photosynthesis?
chloroplast
Define granum
a stacked column of flattened, interconnected disks (thylakoids) that are part of the thylakoid membrane system in chloroplasts
What is a stacked column of flattened, interconnected disks (thylakoids) that are part of the thylakoid membrane system in chloroplasts?
granum
Define thylakoid
a complex, organized internal membrane composed of flattened disks, which contain the photosystems involved in the light-dependent reactions of photosynthesis
What is a complex, organized internal membrane composed of flattened disks, which contain the photosystems involved in the light-dependent reactions of photosynthesis?
thylakoid
Define stroma
o Stroma- fluid matrix surrounding the thylakoid
Define leucoplasts
o Leucoplasts- other DNA-containing organelles in plants that lack pigment and a complex internal structure