Deck 4 Flashcards
1
Q
Which organelle helps Paramecium to escape predation?
A
Trichocysts
2
Q
Which organelle is the microbial organizing center?
A
Apical complex
3
Q
Which organelle is required for motility?
A
Microneme
4
Q
Chloroplasts are thought to have evolved from a bacterial ancestor that belonged to which group of bacteria?
A
Cyanobacteria
5
Q
What is a brief description of the endosymbiotic hypothesis for chloroplasts and mitochondria?
A
Their ancestors were free living bacteria
Taken into cytoplasm of unicellular eukaryote
Symbiosis lead to dependence upon one another
Bacteria evolved a reduced genome
6
Q
What are three factors that support the endosymbiotic hypothesis for chloroplasts and mitochondria?
A
- They have 70s ribosomes like bacteria (vs. 80s)
- They have circular genomes like bacteria (vs. linear chromosomes)
- Their genomes code for rRNA similar to rRNAs of bacteria
7
Q
What is the s-shaped growth curve called?
A
Diauxic growth
