Lab 7 Quiz Flashcards
1
Q
xylem
A
- large circles with white
- water and minerals (purple slide of strings)
2
Q
phloem
A
- internal white and green part
- longitudinal section
- have sieve plates (dots and cross sections)
3
Q
what passes through the pores in the wall btwn sieve tube members?
A
-sugar
4
Q
why do we cut celery underwater?
A
-so air bubbles will not form where the flow of water needs to be happening
5
Q
what happens if you cut a petiole
A
-water/ xylem sap will drain out from the cut
6
Q
how does xylem sap flow
A
-via transpirational pull
7
Q
how does phloem sap flow
A
-via pressure flow
8
Q
source
A
- leaf cell
- actively transports sucrose into phloem
- connected to phloem by companion cell
9
Q
sink
A
- root cell
- sugar is transported to here via phloem and then companion cell
10
Q
stoma makeup
A
- menisci inside of stoma
- mesophyll lines indie connected to leaf (pull water from here)
- high water potential in menisci
11
Q
primary growth
A
-growing longer or taller roots or shoots
12
Q
secondary growth
A
- growing wider roots or shoots
- via vascular cambium
13
Q
vascular cambium
A
- plant tissue located between the xylem and phloem
- yellow ring in images
- source of secondary growth
