SEED GERMINATION

Question 1

ripened ovule containing embryo

Answer 1

seed

Question 2

seed characteristics

Answer 2

seed size
seed color
seed surface

Question 3

types of seed based on the number of cotyledons

Answer 3

monocot
dicot

Question 4

based on the presence of endosperm

Answer 4

albuminous
exalbuminous

Question 5

these are the seeds with endosperm.

Answer 5

albuminous seeds

Question 6

seeds without endosperm

Answer 6

exalbuminous seeds

Question 7

in cereals such as maize, the seed coat is membranous and generally fused with the fruit wall known as

Answer 7

hull

Question 8

stores food

Answer 8

endosperm

Question 9

protective undifferentiated sheath of the radicle

Answer 9

coleorhiza

Question 10

growing tip of the shoot

Answer 10

plumule

Question 11

covers the plumule in monocots

Answer 11

coleoptile

Question 12

outer thick protectice layer

Answer 12

testa

Question 13

inner, thin membranous covering that protects the inner part of the seed

Answer 13

tegman

Question 14

a scar on the seed coat

Answer 14

hilum

Question 15

small pore present above the hilum

Answer 15

micropyle

Question 16

ridge-like structure present around the median groove

Answer 16

raphe

Question 17

the outer covering of the endosperm

Answer 17

aleurone layer

Question 18

how seeds form

Answer 18

pollination
pollen tube
fertilization

Question 19

growth of embryo/endosperm stops
seed reaches a dormant stage by gradual loss of moisture
indicated mostly by ripening or drying of fruits

Answer 19

maturation of seed

Question 20

a mechanism that helps in the transport of seeds to other places to ensure germination and survival

Answer 20

seed dispersal

Question 21

agents of seed dispersal

Answer 21

wind
expulsion
animals
water

Question 22

seed dispersal by wind

Answer 22

anemochory

Question 23

seed dispersal by water

Answer 23

hydrochory

Question 24

seed dispersal by animals

Answer 24

zoochory

Question 25

seed dispersal by explosions

Answer 25

autochory

Question 26

rich in carbohydrates

Answer 26

cereals

Question 27

lipids and fats

Answer 27

oilseed

Question 27

rich in protein

Answer 27

pulses

Question 28

aromatic acid/alkaloids

Answer 28

spices

Question 29

secondary metabolites

Answer 29

beverage and medicine

Question 30

fibre from seeds

Answer 30

fibre

Question 31

can survive extreme freezing or drying conditions during ex-situ conservation

Answer 31

orthodox seeds

Question 32

cannot thrive in freezing or drying conditions for a long duration

Answer 32

recalcitrant seeds

Question 33

cotyledons emerge above the soil by elongation of hypocotyls

Answer 33

epigeal

Question 34

don't emerge above the soil surface

Answer 34

hypogeal

Question 35

growth of seed into a young plant

Answer 35

germination of a seed

Question 36

seeds remain alive but inactive for a long period of time

Answer 36

dormant

Question 37

seedling growth

Answer 37

by cell division enlargement differentiation of growing point

Question 38

significance of seeds

Answer 38

perennation dispersal delayed germination food