Chapter 24 -4

Question 1

What is xylem’s function?

Answer 1

water transport from the roots to the leaves

Question 2

What is the phloem’s function?

Answer 2

photosynthesized sugar transport from the leaves to other parts of the plant

Question 3

What are the characteristics of primary plant growth?

Answer 3

lengthwise
occurs at tips of roots and tips of stems
apical meristem & root meristem cells contribute

Question 4

What are the characteristics of the secondary plant growth?

Answer 4

diameter-wise
woody perrenials
cambium responsible for growth

Question 5

Where is the vascular cambium located?

Answer 5

between xylem and phloem tissues

Question 6

Where is the cork cambium located?

Answer 6

between bark and the cortex (photosynthesizing) tissue

Question 7

What make up the external leaf structure?

Answer 7

blade - leaf body
veins - transport vessels
petiob - attaches blade to stem

Question 8

What kind of tissue does external leaf have?

Answer 8

epidermis: outer surface
secretes protective chitin
houses stromata pores w/ guard cells for gas exchange

Question 9

What are the parts of internal leaf tissues?

Answer 9

Ground tissues
patisade mesophyll cells
spongy " "
vascular tissues
xylem
phloem

Question 10

What is the difference b/w ground & vascular tissues?

Answer 10

2 layers of photosynthesizing cells

plants found in veins

Question 11

What is the difference b/w patisade mesophyll cells and spongy?

Answer 11

tightly packed cells on top of leaf

looser packed cells on bottom of leaf