CELLS Flashcards
1
Q
All cells have…
A
- Cell Membrane
- DNA at some point
- sub-cellular organelles (except prokaryotes)
2
Q
Plasmid
A
Extra-nuclear DNA
3
Q
Plasma Membrane
A
- phospholipids
- receptors for communication
- attached to other cells to form tissues
- selectively permeable
- outside of cell membrane = extracellular structure
4
Q
Nucleolus and ribosome production
A
ribosome production begins
- rRNA: combined and synthesized with protein to make ribosomes
- More than 1 nucleolii
5
Q
Lysosomes
A
(trashcans, bombs)
- made from Golgi
- If they burst the cell dies
- Hydrolytic Enzymes
- destroy pathogens
6
Q
Apoptosis
A
Programmed death
7
Q
Contractile Vacuole
A
unicellular organisms with cell walls to pump out water outside of the cell
8
Q
Centrosomes
A
- only in animal cells
- Organize cell division
- 2 centrioles, when the cell is dividing it splits apart to each end of the cell
9
Q
Anaerobic Respiration
A
No O2, every eukaryotic cell
10
Q
Endosymbiont Theory
A
Cell living within another cell, over time the host cell and endosymbiont merge into a single organism.
11
Q
Endosymbiont Theory Evidence
A
- mitochondria and chloroplasts have double membranes
- mitochondria and chloroplasts have their ribosomes and DNA in the form of circ. chromosomes
- can replicate on their own
12
Q
Mitochondria and Chloroplasts are…
A
Semi-autonomous cell Organelles, Own DNA and Multiply by self
