EUIUI angiosprm seed structure

Question 1

Dicot seed Consists of

Answer 1

• Hilum - small white scar
  
  • Micropyle
  • Hypocotyl AKA radicle
  • Seed coat
  • Embryo
    Cotyledon

Question 2

The embryo comprises of dico

Answer 2

• Cotyledon
  
  • Epicotyl
  • Hypocotyl
  • Radicle
  • Plumule

Question 3

in monocot seed, food stored in
what is it filled with

Answer 3

endosperm
endosperm filled with starch

Question 4

What absorbs food from endosperm
monocot

Answer 4

cotyledon

Question 5

what protects the what
monocot

Answer 5

Coleoptile encloses and protects plumule
- Coleorhiza encloses and protects radicle
fuck you

Question 6

what is the seed coat in monocot

Answer 6

Pericarp

Question 7

Groups with important seeds:

Answer 7

cereals (Poaceae); >50% of world daily calorie intake
* legumes (Fabaceae)
* mustard family (Brassicaceae)
prolly have to know familiy cuz this guys a cuck

Question 8

Canada is among the top
waaaaaaat

Answer 8

rapeseed (incl. canola) and wheat producers in
the wor

Question 9

the big 3

Answer 9

rice
wheat
corn

Question 10

in dicot, what does each thing turn into

Answer 10

radicle- roots
epicotyle- stem above cotyledons
cotyledons- shit like weird shut
hypocotyle- below cotyledon is stem
plumule- first leaves

Question 11

Aleurone layer

Answer 11

in monocot, borderes endosperm shit

Question 12

Cotyledon another word

Answer 12

(scutellum)

Question 13

Epigeal germination and the steps

Answer 13

• Cotyledons emerge from soil
  1) Root emerges
  2) Hypocotyl elongates and forms a hook
  3) Hook straightens and pulls cotyledons and first leaves above ground
  4) Epigeous germination

Question 14

Hypogeal germination

Answer 14

1) Hypogeal germination
- Cotyledons remain in soil
Steps
1) Radicle emerges from coleorhiza
2) Coleoptile pushed up and plumule emerges

Question 15

Orthodox seeds

Answer 15

Survive drying and freezing

Question 16

Can be stored for prolonged periods

Answer 16

orthodox seeds

Question 17

Unorthodox seeds

Answer 17

Seeds that are not able to tolerate low temperature and moisture

Question 18

Germination

Answer 18

Beginning or resumption of growth of a seed

Question 19

what state do most seeds go through? what type of seed does not survive this shit

Answer 19

desiccated state, unorthodox seesd

Question 20

what type of respoiration is oxygen present
what type of soil is oxygen present in?

Answer 20

aerobic respiration
Well aerated soil PORE SPACES

Question 21

minimum temperature
ideal temp
max temp

Answer 21

• Minimum 0-5 C
  
  • Maximum 45 C
  • Optimum 20-30 C

Question 22

Most plants do not require what to germinate

Answer 22

light

Question 23

Dormancy and function

Answer 23

• Period of growth inactivity in seeds or buds
• Happens even when environmental requirements for germination
  Function
  Delaying mechanism that assures that seeds will germinate at proper time

Question 24

Breaking of dormancy

Answer 24

• Stratification
• Scarification

Question 25

• Scarification

Answer 25

• Breaking of seed coat by mechanical action

Question 26

Stratification

Answer 26

Seed needs to be chilled and kept moist

Question 27

Phases of germination

Answer 27

Phase 1) Imbibition
- Weight increases exponentially
Phase 2) Lag Phase
- Weight is constant, steady
Phase 3) Radicle emergence
Weight increases again