MBB Flashcards
1
Q
Cell Theory
A
- All living organisms are made of cells (the most basic unit of structure and function )
- All organisms arise from pre-existing cells
2
Q
Prokaryotic cells
A
- bacteria and archaea
- no membrane bound organelles
- circular DNA
3
Q
Eukaryotic cells
A
- plant, animal, fungi, protist
- membrane bound organelles
- true nucleus
- linear DNA
4
Q
Cell Transport Mechanisms
A
Passive, Active, Bulk
5
Q
Cell (Plasma) Membrane
A
- phospholipid bilayer
- Fluid Mosaic Model: fluid (able to bend with movement of molecules), mosaic (tiles of macromolecules)
6
Q
Cell Membrane Proteins
A
- Integral: permanent
- Peripheral: attach and detach
- for transport, signaling, and cell recognition
7
Q
Passive Transport
A
diffusion, osmosis, facilitated diffusion
8
Q
Active Transport
A
- requires energy ( ATP )
- endocytosis, exocytosis, Na-K pump
9
Q
Bulk Transport
A
- phagocytosis (eating)
- pinocytosis (drinking)
10
Q
Nucleus
A
- contains DNA
- site of replication and transcription
- nuclear envelope : 2 lipid bilayer membranes
- nucleolus : produce and assemble ribosomes & where rRNA is transcribed
11
Q
A
12
Q
A
