Ecosystem And Biosphere

Only available for you

46 The smallest flowering plant is :

A
Wolffia
B
Lemma
C
Azolla
D
Ficus

47 Veins seen in the leaves, serve the function of :

A
Photosynthesis
B
Transpiration
C
Storage
D
Conduction

48 The edible part of Cabbage is :

A
fruit
B
condensed flower
C
vegetative bud
D
inflorescence

49 The green colour of the leaves is due to the presence of :

A
Proteins
B
Lipids
C
Chlorophyll
D
Carbohydrates

50 Plants developing in dry conditions are

A
xerophytes
B
mesophytes
C
lithophytes
D
hydrophytes

51 The transport of organic substances in plants is through

A
Xylem
B
Phloem
C
Fibers
D
Wood

52 Who is regarded as father of plant tissue culture?

A
Haberlandt
B
White
C
Linnaeus
D
Skoog

53 They are double membrane structures that are commonly oval or disc shaped.

A
Ribosomes
B
Lysosomes
C
Nucleus
D
Golgi bodies

54 The cell wall of plants is generally made up of cellulose and is differently structured than that of a

A
Moss
B
Bacterium
C
Fern
D
Algae

55 Which cell feature is responsible for making proteins?

A
Chromosomes
B
Nucleus
C
Ribosomes
D
Cytoplasm

56 When we consume the goat or sheep beef then we are

A
Primary consumer
B
Secondary consumer
C
Tertiary consumer
D
None of the above

57 Which of these plants grow in an environment that is neither very wet nor very dry?

A
Mesophytes
B
Sporophyte
C
Saprophytes
D
Tracheophytes

58 Censor mechanism of dispersal of seeds is found in

A
Pea
B
Poppy
C
Cotton
D
Maize

59 Primary phloem develops from

A
lateral meristem
B
protoderm
C
extrastelar cambium
D
provascular tissue

60 The DNA of the bacterium is found present in a distinct nuclear region called

A
Nucleolus
B
Centrosome
C
Nucleoid
D
Nucleus