Morphology And ANATOMY AOF FLOWERING PLAMTS - MCQs

Question 1

Mechanical tissue consisting of living cells -

Answer 1

Collenchyma

Question 2

Maximum bordered pits are found in the traheids of -

Answer 2

Gymnosperms

Question 3

Chief function of XYLEM VESSEL -

Answer 3

Conduct sap

Question 4

Thickening of collenchyma is mainly due to the deposition of -

Answer 4

Pectin

Question 5

Velamen tissue is found in-

Answer 5

Aerial roots of EPIPHYTIC ORCHIDS

Question 6

A dicot root differs from a monocot root in the presence of -

Answer 6

Poorly developed pith

Question 7

Position of xylem and phloem respectively in a leaf -

Answer 7

Adaxial

Abaxial

Question 8

In leaves the vascular bundles are -

Answer 8

Collateral and closed

Question 9

When protoxylem faces pericycle it is called -

Answer 9

Exarch

Question 10

In trees , the annual rings represent -

Answer 10

Secondary xylem

Question 11

Lenticels do not occur on -

Answer 11

Leaf

Question 12

Youngest layer of secondary xylem is located just -

Answer 12

Inside the vascular cambium

Question 13

Living tissue in lenticels is called -

Answer 13

COMPLEMENTARY TISSUE

Question 14

Normally , in dicot stems , phellogen develops from -

Answer 14

Hypodermis

Question 15

Porous wood is characterised by -

Answer 15

Presence of vessels

Question 16

_______ wood is non-porous becoz it lacks vessels .

Answer 16

Gymnosperm

Question 17

Monocot root is different from dicot root in having -

Answer 17

Large pith

Question 18

Common structural feature of VESSEL ELEMENTS AND SEIVE TUBE ELEMENTS -

Answer 18

Enucleate condition

Question 19

In seive tube elements , function of P-proteins -

Answer 19

Sealing mechanism on wounds

Question 20

Grafting is successful in dicots but not in monocots because dicots have -

Answer 20

Cambium for secondary growth

Question 21

Passage cells are thin-walled cells found in-

Answer 21

Endodermis of roots facilitating rapid transport of water from cortex to pericycle

Question 22

Vascular tissue in flowering plants develops from -

Answer 22

Plerome

Question 23

palisade parenchyma is absent in the leaves of -

Answer 23

Sorghum -monocot

Question 24

Intercallary meristem is a lateral meristem . T/F

Answer 24

F

Question 25

Function of companion cells -

Answer 25

Loading of sucrose into sieve elements Reason: Companion cells move sugar and amino acids into and out of the sieve elements. In tissues such as leaf companion cells use transmembrane proteins to take up sugar like Sucrose and amino acids by active transport. Movement of sugars in the phloem begins at the source, where sugars are loaded (actively transported) into a seive tube. Loading sets up a water potential gradient that facilitates movement of sugar.

Question 26

Gymnosperms are called soft-wood spermatophytes because they lack -

Answer 26

Xylem fibres

Question 27

Tracheids differ from other tracheary elements in -

Answer 27

Being imperforate ( not perforated )

Question 28

Vessels differ from tracheids in having -

Answer 28

Perforation plates at both ends

Question 29

Pith is small or in conspicuous in -

Answer 29

Dicot root

Question 30

Complementary cells are formed by the activity of -

Answer 30

Phellogen | Complementary cells give rise to lenticels

Question 31

In dicot root , PERICYCLE gives rise to -

Answer 31

Cork cambium Lateral roots Portion of vascular cambium

Question 32

Radish is an example of ______ root .

Answer 32

Fusiform

Question 33

Modification of root which does not store food -

Answer 33

Stilt root

Question 34

Phylloclade is found in -

Answer 34

Opuntia | Cactus

Question 35

Stem modified into leaf -like structure and leaves change into spines -

Answer 35

Phylloclade

Question 36

A modification of petiole . Phyllode/ phylloclade ?

Answer 36

Phyllode

Question 37

Eye of the potato is _______ bud .

Answer 37

Axillary

Question 38

Pappu is a modification of -

Answer 38

Calyx

Question 39

Pome is a _____ fruit . ( true/false)

Answer 39

False

Question 40

Fourth whorl of flower -

Answer 40

Carpel - gynoecium

Question 41

_____ is false septum .

Answer 41

Replum- found in MUSTARD

Question 42

Lady finger and cotton belong to family -

Answer 42

Malvaceae

Question 43

China rose belongs to family -

Answer 43

Malvaceae

Question 44

Grain of maize is -

Answer 44

Fruit

Question 45

Long filamentous threads protruding at the end of a young cob of maize are -

Answer 45

Styles

Question 46

Replum is present in the ______ of mustard .

Answer 46

Ovary

Question 47

The fruit is chambered , developed from inferior ovary and has seeds with succulent testa in -

Answer 47

Pomegranate

Question 48

Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary - ( caryopsis/cypsela )

Answer 48

Caryopsis

Question 49

Mustard belongs to family -

Answer 49

Brassicaceae / cruciferaceae

Question 50

Flowers are ______ in Gulmohar .

Answer 50

Zygomorphic

Question 51

Flower of ______ is a modified shoot .

Answer 51

Tulip

Question 52

Phyllode is present in -

Answer 52

Australian acacia

Question 53

Different lengths of stamen are found in -

Answer 53

Salvia Mustard Radish Gram

Question 54

Radial symmetry is found in the flower of -

Answer 54

Brassica

Question 55

Edible part of walnut and cashew nut 🥜 -

Answer 55

Cotyledon | Peduncle

Question 56

Pneumatophores occur in -

Answer 56

Halopytes

Question 57

Edible part of banana -

Answer 57

Endocarp and less-developed mesocarp