LECTURE 8 (Semi-auto, Cytoskeleton) Flashcards
It is found inside both membranes and it is the “cytoplasm” in Mitochondria.
Matrix
Fold that expands the surface area of the inner mitochondrial membrane.
Cristae
Two boundary membrane that is found in Chloroplast
- Thylakoid
- Stroma
Two boundary membrane that is found in Mitochondria
- Cristae
- Matrix
It is called the stacks of the thylakoids in chloroplast
Grana (singular = granum)
Flattened, closes sacs that make up a membrane system within the stroma of a chloroplast; site where light-dependent reactions of photosynthesis occur.
Thylakoid Membrane
An inner compartment of a chloroplast, enclosed by two boundary membranes and containing a third membrane system. It is the cytoplasm in “chloroplast”
Stroma
These are plant-specific organelles responsible for starch biosynthesis and storage. Example (banana cell)
Amyloplasts
Plastid that contains pigments (carotenoids) giving coloration to flowers and fruits, making them attractive to animals for pollination and seed dispersal respectively. (example: Red Pepper cells)
Chromoplast
Network of protein filaments in the cytoplasm of a eukaryotic cell.
Cytoskeleton
Three types of Cytoskeleton
- Microtubules
- Microfilaments
- Intermediate filaments
Functions of Cytoskeleton
- Cell shape
- Cell polarity
- Cell division
- Cell movement and migration
- Intracellular transport and cytoplasmic organization
A cytoskeletal component formed by the polymerization of tubulin into rigid, hollow rods about 25 nm in diameter.
- 13 protofilaments
Synchronized mitotic divisions in “Drosophila”
Microtubule
Microtubules Functions
- Cell shape and movement
- provide tracks for intracellular organelle movement
- Attach to chromosomes during division to form the spindle
A thin type of protein filament composed of actin.
Microfilaments
