Quiz 5 Flashcards
(12 cards)
1
Q
What is the arrangement of a monocot stem?
A
Atactostele
2
Q
What is the arrangement of a dicot stem?
A
Eustele
3
Q
What is the order of the vasculature in the dicot (sunflower) and moncot (corn)?
A
- Fiber (schlerenchyma)
- Phloem (complex tissue)
- Xylem (complex tissue)
4
Q
What is the collateral bundle in a sunflower?
A
- Fiber bundle cap (sclerenchyma)
- Phloem
- Vascular cambium
- Xylem (meta xylem and proto xylem)
- Parenchyma
5
Q
What is the bicollateral bundle in a cucumber?
A
- External phloem
- Vascular cambium
- Xylem
- Vascular cambium
- Internal phloem
6
Q
What is the corn (monocot) vascular bundle?
A
- Fiber (sclerenchyma)
- Phloem
- Companion cell
- Sieve tube element
- Vessel element
- Tracheid
- Lacuna <- Protoxylem
- Parenchyma
7
Q
What do gymnosperms (pine) have?
A
- No vessel element only tracheid
- Tracheids make up most of the stem tissue
- Phloem relatively less obvious
8
Q
What do vascular rays do?
A
Move water and nutrients radially through the stem tissue
9
Q
What does toluidine blue stain (TBO)?
A
- Lignified => blue
- Non-lignified => red-purple
10
Q
What does aniline blue do?
A
- Excited by UV light
- Binds to B-glucan
- Polysaccharide (callose) found in sieve plates
11
Q
What do aniline stained cucumbers have?
A
- Sieve plates separate the sieve tube members
- Not all in focus viewing it from the top, sieve plate is at an angle
12
Q
What does aniline blue stain?
A
- Xylem is heavily blue
- Bands of fiber cells are also stained
- Focus on the phloem to see the sieve plates
