2.4 Plant development

Question 1

what is the stem of a flower called

Answer 1

Pedicel

Question 2

what is the need of the endosperm for the zygote

Answer 2

food reserve

Question 3

where does the germ come from in wheat

Answer 3

embryo

Question 4

what part of the plant is flour

Answer 4

the endosperm

Question 5

what is the genetics of the monocot embryo

Answer 5

diploid with equal genetics from both parents

Question 6

genetics of endosperm (monocot)

Answer 6

triploid with 2x cont. from female, 1x from male

Question 7

what primordial leaf absorbs the endosperm on monocots

Answer 7

cotyledons

Question 8

what is the tough outer casing that covers the first shoot of a monocot

Answer 8

coleoptile

Question 9

what kind of light germinated lettuce seed

Answer 9

red

Question 10

what pigment is responsible for germination in lettuce

Answer 10

phytochrome, convertible between two forms

Question 11

what is the name of the pigment found in phytochrome

Answer 11

phycobilin

Question 12

what substance causes sugars to be secreted from endosperm

Answer 12

aleurone

Question 13

what substance activates seed germination

Answer 13

gibberlin

Question 14

what substance activates root and and stem elongnation

Answer 14

Indoleacetic acid (IAA)

Question 15

what cytokinin activate

Answer 15

cell division

Question 16

what are photoperiod controls

Answer 16

when a plant will only flower once the daylight hours are longer or shorter than a critical period

Question 17

will Far Red light cause floweringin SDP

Answer 17

yes

Question 18

Will far red light cause flowering LDP

Answer 18

no

Question 19

Does Pfr stimulte LDP flowering

Answer 19

yes

Question 20

what does ethylene do

Answer 20

maturation of fruits, and drop leaves

Question 21

what is Abscissic acid (ABA)

Answer 21

dormancy hormone that will limit bud activity in winter and fall