Biology: The Cell Flashcards
1
Q
Cell Theory
A
- All living things composed of cells
- Cell as the basic fundamental unit of life
- Cells arise only from pre-existing cells
- Cells carry genetic information
2
Q
Prokaryotes
A
- Bacteria
- Cell wall present in all
- No nucleus
- 30S and 50S ribosome subunits
- No membrane-bound organelles
3
Q
Eukaryotes
A
- Protists, fungi, plants, animals
- Cell wall present in fungi and plants only
- Nucleus
- 40S and 60S ribosome subunits
- Membrane-bound organelles
4
Q
What makes up the cytoskeleton?
A
Microtubules, microfilaments, intermediate fibers
5
Q
Which organelles are inherited from the oocyte?
A
Ribosomes and mitochondria
6
Q
How are mitochondria semiautonomous?
A
Contain own circular DNA and ribosomes, allowing them to self-replicate by binary fission
7
Q
Do plants contain centrioles?
A
No
8
Q
What make up microtubules?
A
Tubulin subunits
Microtubules useful in cellular division in movement
9
Q
What make up microilaments
A
Actin subunits
10
Q
Hypertonic
A
Lower solute concentration in the cell, water flows out, cell shrinks
11
Q
Hypotonic
A
Higher solute concentration in cell, water flows in, cell bursts
