SEED AND FRUIT

Question 1

Seed is often described as fertilised ovule.

True/False

Answer 1

True

Question 2

Seeds are formed inside _________

Answer 2

Fruits

Question 3

Seed typically consists of _______, _______ and ___________

Answer 3

seed coat, cotyledon(s), embryo axis

Question 4

Cotyledons are generally thin and swollen due to storage of food reserves.

True/false

Answer 4

False

Thick

Question 5

Non-albuminous/ex-albuminous seeds are those _________

Answer 5

which dont have residual endosperm as it is completely consumed during embryo development.

Question 6

Eg. of non-albuminous seeds

2

Answer 6

Pea, groundnut

Question 7

Albuminous seeds are those which __________

Answer 7

retain a part of endosperm as it is not completely used up duruing embryo development.

Question 8

Egs. of albuminous seeds

4

Answer 8

Wheat, barley, maize, castor

Question 9

Residual nucellus persistent in some seeds is called __________

Answer 9

Perisperm

Question 10

Egs. of seeds with perisperm

2

Answer 10

Beet, black pepper

Question 11

Integuments of ovule harden to form __________

Answer 11

Tough, protective seed coat

Question 12

Micropyle remains a small pore in the ___________

Answer 12

Seed coat

Question 13

What is the function of micropyle?

Answer 13

Facilitates the entry of water and oxygen into the seed for germination.

Question 14

As the seed matures, its water content increases/reduces and seeds become relatively dry/wet ( ________ % mositure by mass)

Answer 14

Reduces, dry, 10-15

Question 15

The general metabolic activity of embryo increases in speed/slows down.

Answer 15

Slows down

Question 16

State of inactivity that embryo enters is called ___________

Answer 16

Dormancy

Question 17

What are the favourable conditions in which seed germinates?

3

Answer 17

1. Adequate moisture
   2.Oxygen
   3.Temp.

Question 18

The transformation of ovules into seeds and ovary into fruit proceeds subsequently.

True/false

Answer 18

False

Simultaneously

Question 19

Wall of ovary develops into the wall of fruit called_______

Answer 19

Pericarp

Question 20

Fleshy fruits eg.

3

Answer 20

Mango, orange, guava

Question 21

Dry fruits eg.

2

Answer 21

Groundnut, mustard

Question 22

In most plants, by the time fruits develop from ovary, other floral parts degenerate and fall off.

True/false

Answer 22

True

Question 23

Fruits in which thalamus contributes to fruit formation are called __________

Answer 23

False fruits

Question 24

Egs. of false fruits

3

Answer 24

Apple, strawberry, cashew

Question 25

Most fruits develop only from ovary and are called __________

Answer 25

True fruits

Question 26

In most of the species, fruits are results of __________

Answer 26

Fertilisation

Question 27

Fruits which develop without fertilisation are called ____________

Answer 27

Parthenocarpic fruits

Question 28

Parthenocarpy can be induced through the application of ____________

Answer 28

Growth hormones

Question 29

Parthenocarpic fruits are seed-bearing / seed less

Answer 29

Seedless

Question 30

Eg. of parthenocarpic fruit | 1

Answer 30

Banana

Question 31

Since reproductive processes such as pollination and fertilisation are independent of ________, seed formation is more dependable.

Answer 31

Water

Question 32

Seeds have better adaptive strategies for dispersal to new habitats . | True/false

Answer 32

True

Question 33

As seeds have sufficient food reserves, young seedlings are nourished until they are capable of _______

Answer 33

Photosynthesis

Question 34

Hard seed coat provides protection to ___________

Answer 34

Young embryo

Question 35

Seeds do not generate any new genetic combinations leading to variations. | True/false

Answer 35

False | They do

Question 36

____________ is the basis of our agriculture

Answer 36

Seed

Question 37

________ and ____ of mature seeds are crucial for storage of seeds to be used as food or to raise crop in next season.

Answer 37

Dehydration and dormancy

Question 38

________ was excavated from Arctic Tundra

Answer 38

Lupine, Lupinus arcticus

Question 39

The seed of lupine germinated and flowered after an estimated record of ____________ years of dormancy

Answer 39

10000

Question 40

Phoenix dactylifera is ___________

Answer 40

Date palm

Question 41

Pheonix dactylifera is a ________ years old viable seed

Answer 41

2000

Question 42

Pheonix dactylifera was discovered during archeological excavation at ________ near ______

Answer 42

King Herod's palace ,Dead sea

Question 43

Each fruit of orchid contains ____ tiny seeds

Answer 43

thousands of

Question 44

Parasitic species with many seeds | 2

Answer 44

Orobanche and Striga

Question 45

________ tree produces billions of seeds

Answer 45

Ficus