Chapter 12 - Eukaryotes Flashcards
1
Q
Mitosis vs Meiosis
A
mitosis is asexual;
meiosis is sexual (2 stages)
2
Q
Mitosis
A
- cell partition that replicate DNA equally bw 2 nuclei
- pro, meta, ana, telophase
3
Q
Meiosis
A
2 stages: meiosis I + II
-nuclear division that partitions chromatids into 4 nuclei
-each stage has 4 phases
4
Q
Cytokinesis
A
- cytoplasmic division
- occurs during TELOPHASE
5
Q
Protozoa
A
- very few are pathogens
- eukaryotic, unicellular, lack cell wall
6
Q
Fungi
A
- chemoheterotroph
- 30% cause disease of plants, animals, + humans
- related to animals
- cell walls are made of CHITIN
7
Q
fungi cell wall
A
chitin
8
Q
significance of Fungi
A
- decompose dead organisms + recycle nutrients
- help plants absorb water + minerals
- used for food + bev
- produce antibiotics + other drugs
- important research tool
- can spoil fruit, pickles, jams, jellies
9
Q
fungi metabolism
A
- acquire nutrients by absorption
- most are SAPROBES
- most are aerobic
- many yeasts are facultative anaerobes
10
Q
Saprobes
A
lives + feeds on dead organic matter
11
Q
Water molds
A
- differ fr fungus
- decompose dead animals + return nutrients to the environment
- type of saprobes
12
Q
Arachnid
A
- vector
- 4 pairs of legs
- ticks are the most important arachnid vector
13
Q
most prominent tick vector
A
hard ticks
14
Q
insects
A
- vector
- adult insects have 3 pairs of legs and 3 body regions
- includes MOSQUITOS, lice, flies, fleas, kissing bugs
15
Q
most important arthropod vectors of disease
A
mosquitos
