U1AOS1 Cells Flashcards
1
Q
What are the three domains in the hierarchy?
A
Bacteria
Archaea
Eukarya
2
Q
Prokaryotes
A
Unicellular organisms that lack a nucleus or any membrane-bound organelles
3
Q
Eukaryotes
A
A cell with membrane-bound nucleus and organelles
4
Q
Prokaryote structure
A
Have a cell envelope, cytoplasm, ribosomes and a single, circular chromosome (nucleoid)
5
Q
What is the effect of size on SA:V
A
Larger objects have a smaller SA:V than smaller objects of the same shape
6
Q
The effect of shape on SA:V
A
Flatter objects have a greater ratio than objects of the same volume with a less flattened shape. A sphere has the smallest ratio of any shape
