Exam 2 Flashcards
1
Q
Baccili
A
rod-shaped
2
Q
Cocci
A
spherical/round-shaped
3
Q
Spirochete
A
spiral/zigzag
4
Q
gram-positive
A
- purple
- high peptidoglycan in the cell wall means the stain attaches more
5
Q
gram-negative
A
-pink
- little to no peptidoglycan
6
Q
antheridia
A
male gamete that forms sperm
7
Q
archegonia
A
female gamete that forms a single egg
8
Q
what are the derived characteristics of land plants
A
- cells walls made of cellulose
- chlorophyll a and b in plastids
-use starch as a storage product - embryophytes
- waxy cuticle to prevent from drying out
- stomata allow gas exchange through the cuticle
9
Q
what is endosymbiosis
A
- how eukaryotes evolved
- certain organelles arose from symbiotic relationships between large cells and bacteria incorporated to live with them
- one organism lives inside the other
10
Q
haploid
A
-one set of chromosomes
- meiosis
11
Q
diploid
A
- 2 sets of chromosomes
- mitosis
12
Q
microsporangia
A
- produce microspores that give rise to male gametophytes when they germinate
13
Q
megasporangia
A
- produce megaspores that develop into female gametophytes
14
Q
characteristics of monocots
A
- long leaves that have parallel veins
- flowers sprout in multiples of 3
- seeds have one cotyledon
- in the stem vascular tissue is scattered
- roots are fibrous( no main root)
- endosperm is present in the mature seed
15
Q
characteristics of eudicots
A
- seeds have 2 cotyledons
- veins in leaves are netlike
- in the stem, the vascular tissue is arranged in a ring
- root system has a taproot(main root)
- flowers sprout in multiples of 4 or 5
- endosperm is absent in mature seeds