Morphology Of Flowering Plants

Question 1

Give example of tap root system

Answer 1

Mustard

Question 2

Fibrous root system (root emerges from base of stem)

Answer 2

Wheat

Question 3

Adventitious root system (roots emerge from parts of the plant other than radicle)

Answer 3

Banyan, Grass, Monstera

Question 4

Main functions of roots

Answer 4

1. Absorption of water and minerals
2. Anchorage
3. Synthesis of plant growth regulators

Question 5

Stilt roots are found in (root modification for support)

Answer 5

Maize, sugarcane

Question 6

Prop roots example (root modification for support)

Answer 6

Banyan tree

Question 7

Root modification for respiration

Answer 7

Pneumatophores

Question 8

Which plant has pneumatophores

Answer 8

Rhizophora

Question 9

Root modification for storage of food (Tap roots)

Answer 9

Carrot and turnip

Question 10

Root modification for storage in food (Adventitious roots)

Answer 10

Sweet potato

Question 11

Main functions of stem

Answer 11

1. Helps spreading the branches carrying leaves, seeds and fruits
2. Conduction of water minerals and photosynthates
3. Anchorage
4. Support
5. Protection
6. Vegetative propagation
7. Food storage

Question 12

Modification of stem for storage of food (5)

Answer 12

Potato, turmeric, ginger, zaminkand and colocasia

Question 13

Plants that act as organs of perennation to tide over unfavourable conditions (5)

Answer 13

Potato, ginger, turmeric, zaminkand, colocasia

Question 14

Stem modification for climbing: Stem tendrils

Answer 14

Gourd family, grapevine
⬆️
(Cucumber, pumpkin, watermelon)

Question 15

Modification for stem for prottection: Thorns

Answer 15

Citrus and bougainvillea

Question 16

Plants in arid region modify their stems into flattened structures called -

Answer 16

Opuntia

Question 17

Plants in arid region modify their stems into fleshy cylindrical structures called-

Answer 17

Euphorbia

Question 18

Stem vegetative propagation type: Runners

Answer 18

Grass, strawberry

Question 19

Stem vegetative propagation type: Stolon

Answer 19

Mint, jasmine

Question 20

Stem vegetative propagation type: Offset

Answer 20

Pistia, eichhornia

Question 21

Stem vegetative propagation type: Suckers

Answer 21

Pineapple, chrysanthemum, banana

Question 22

In what plants the leaf base expands into a sheath that cover the stem partially or wholly

Answer 22

Monocots

Question 23

Leaf base of these type of plants swell and are called?

Answer 23

Leguminous plants, pulvinus

Question 24

Types of venation found in monocots and dicots

Answer 24

Parallel and reticulate venation

Question 25

Types of leaves

Answer 25

Simple and compound

Question 26

Types of compound leaves

Answer 26

Pinnately and palmately compound leaves

Question 27

Pinnately compound leaves?

Answer 27

Neem

Question 28

Palmately compound leaves ?

Answer 28

Silk cotton

Question 29

In pinnately compound leaves, leaflets are present on common axis called?

Answer 29

Rachis

Question 30

Define phyllotaxy

Answer 30

Arrangement of leaves on branch or stem

Question 31

Types of phyllotaxy

Answer 31

Opposite, alternate and whorled

Question 32

Opposite phyllotaxy example

Answer 32

Guava, calotropis

Question 33

Alternate phyllotaxy example

Answer 33

Mustard, China rose, sunflower

Question 34

Whorled phyllotaxy example

Answer 34

Alstonia

Question 35

Modification of leaves: tendrils

Answer 35

Pea (pisum sativum)

Question 36

Modification of leaves: spines

Answer 36

Cactii

Question 37

Modification of leaves: food storage

Answer 37

Fleshy leaves of onion and garlic

Question 38

Modification of leaves: insectivorous plants

Answer 38

Venus fly trap, pitcher plant

Question 39

Leaves are short lived in?

Answer 39

Australian acacia Petiole expands, becomes green and synthesises food

Question 40

Define inflorescence

Answer 40

Arrangement of flowers on floral axis

Question 41

Types of inflorescence

Answer 41

Cymose, racemose

Question 42

In which type of inflorescence the main axis continues to grow and the flowers are borne laterally in acropetal succession

Answer 42

Racemose

Question 43

In which type of inflorescence does the main axis have limited axis and main axis terminates in a flower and flowers are in basipetal succession

Answer 43

Cymose

Question 44

Actinomorphic flower examle

Answer 44

Mustard, datura, chilli

Question 45

Zygomorphic flower example

Answer 45

Pea, bean, cassia, gulmohar

Question 46

Asymmetric flower example

Answer 46

Canna

Question 47

Hypogynous flower

Answer 47

Brinjal, mustard, China rose

Question 48

Perigynous flower

Answer 48

Plum, peach, roses

Question 49

Epigynous flower example

Answer 49

Guava, cucumber and ray florets of sunflower

Question 50

Sepals united are called

Answer 50

Gamosepalous

Question 51

Sepals free are called?

Answer 51

Polysepalous

Question 52

Petals united are called?

Answer 52

Gamopetalous

Question 53

Petals free are called?

Answer 53

Polypetalous

Question 54

Valvate aestivation example

Answer 54

Calotropis

Question 55

Imbricate aestivation example

Answer 55

Cassia, gulmohar

Question 56

Vexilliary/ Papilonaceous aestivation example?

Answer 56

Pea, bean

Question 57

Twisted aestivation example?

Answer 57

China rose, lady finger, cotton