2.1.1: Ultrastructure Of Cells Flashcards
What is the structure of mitochondria?
Double membrane organelle with an inner membrane folded to form cristae and a fluid center called the matrix.
What is the primary function of mitochondria?
Site of aerobic respiration and ATP production.
What are the key components of mitochondria?
- Cristae
- Matrix
- Mitochondrial DNA
- Ribosome
- ATP synthase
What is the structure of the nucleus?
Surrounded by a double membrane nuclear envelope with nuclear pores; contains chromosomes and one or more nucleolus.
What is the function of the nucleolus?
Site of rRNA production and ribosome assembly.
What occurs within the nucleus?
- DNA replication
- Transcription
What is the purpose of the nuclear envelope?
Prevents damage to DNA.
What is the structure of cilia?
Hair-like projections out of cells.
What are the functions of mobile cilia?
Help move substances in a sweeping motion.
What role do stationary cilia play?
Important in sensory organs, such as the nose.
Fill in the blank: The inner membrane of mitochondria is folded to form _______.
[cristae]
True or False: The matrix is found within the outer membrane of the mitochondria.
False
What is the intermembrane space in mitochondria?
The space between the inner and outer membranes.
What type of respiration occurs in mitochondria?
[aerobic respiration]
