selected organelles in detail Flashcards
What are the two double membrane bound organelles?
mitochondrion, chloroplasts
What are the membranes on mitochondrion?
inner membrane, inter membrane space, outer membrane
What does the inner membrane fold to make?
folding crista(e)
What is the matrix?
inside of mitochondrion that contains enzymes involved in respiration.
What does the mitochondria do ?
-site of aerobic respiration, where ATP is produced
- found in large numbers in cells that are very active and require a lot of energy
What are the three membranes of chloroplasts called?
inner membrane, inter membrane, outer membrane
What does the stroma do?
thick fluid found in chloroplasts, where photosynthesis happens
What is a thylakoid?
- each membrane found in grana, granum
What is grana/granum?
- stacks of membrane where photosynthesis occurs
What is lamella(e)
- bridges between grana
- thin, flat pieces of thylakoid membrane
What are starch grains?
leftover starch from photosynthesis
How do organelles work together in the production of proteins?
1) ribosomes = protein synthesis
2) rough endoplasmic reticulum = protein transport
3) transport vesicles
4) Golgi apparatus = modifies and packages proteins into vesicles
5) secretary vesicles = for release from the cell
6) exocytosis = vesicles move towards cell surface membrane for exocytosis
What are the two different types of fibre in the cytoskeleton?
solid microfilament, microtubule
What is the fibre solid microfilament made from?
made from a protein called ACTIN
What is the function of microfilaments?
- whole cell movement
- cell division
small scale movement (crawl)
