Lab quiz (stems)

Question 1

xylem

Answer 1

conducts water and minerals absorbed by roots
-consists of fibers (sclerencyma), vessels, tracheids, and ray cells

Question 2

phloem

Answer 2

-conducts sugars produced by photosynthesis
-consists of sieve tubes

Question 3

dicot

Answer 3

-two cotyledons nourish seed embryo
-contain vascular cambium between phloem and xylem

Question 4

monocot

Answer 4

-1 cotyledon nourishes seed embryo
-lack vascular cambium and pith

Question 5

monocot stem

Answer 5

-no cambium, so all tissues are primary
-lacks pith

Question 6

primary cell walls corn

Answer 6

-pectin
cellulose
hemicellulose

Question 7

secondary cell walls corn

Answer 7

cellulose
hemicellulose
lignin
(look for patterns in secondary cell walls)

Question 8

pine stem cross section

Answer 8

-resin canals
-pines only produce tracheids (xylem)
-dont have vessels

Question 9

impatiens lab

Answer 9

-phloroglucinol dye used

Question 10

what was used to view woody stem cross section

Answer 10

basswood

Question 11

what was stained in corn stem

Answer 11

red stained xylem