Exam 2 Flashcards
1
Q
intercalary meristems
A
-“inserted” bc they are not an organ apex like RAM/SAM
- many grasses have these, base of leaf
2
Q
rhizome
A
- underground stem (fleshy or woody
- has internodes and adventitious roots
- storage, competition or asexual reproduction
3
Q
tuber
A
- swollen ends of rhizomes
- storage/asexual reproduction
4
Q
stolon
A
- above ground stem w/ long internodes
- sexual/asexual reproduction
5
Q
runner
A
- above ground stem w/ long internodes growing horizontally on the ground
- branches grow vertically, roots grow adventitiously
- type of stolon
6
Q
corm
A
- short, swollen stem w/ nodes, grows vertically
- storage, survival, asexual reproduction
7
Q
bulb
A
- very compressed stem w/ vertical orientation
- very reduced internodes & leaves are closely layered
8
Q
cladode/cladophyll/phylloclade
A
- flattened stem, functioning like leaves
- fleshy “pads” (cacti)
9
Q
annual
A
plants that complete life cycle in a year or less
10
Q
herbaceous
A
do not have persistent woody stems above ground, do produce secondary xylem
11
Q
biennials
A
take 2 years to complete lifecycle, 1st year store carbs in large roots, 2nd year can flower & seed
12
Q
perennial
A
take more than 2 yrs to complete lifecycle
13
Q
where are apical meristems located?
A
on the apex of an organ (SAM/RAM) tips
14
Q
where is an intercalary meristem found?
A
these are rare, inserted in new stems and leaves
15
Q
where are lateral meristems located?
A
throughout the plant, adding tissues to the width of organs
