NEET Biology Plant Kingdom Mock Test-1
Submerged hydrophytes have(A) Stomata on both surface
(B) Stomata on leaf surface
(C) No stomata
(D) Stomata on lower surface
The stem of submerged water plants is soft and weak because
(A) They are absolutely devoid of xylem
(B) They totally lack phloem
(C) They do not have stomata
(D) The supporting tissue and xylem are poorly developed
Which is not a hydrophytic character?
(A) Abundant air spaces and air chambers
(B) Presence of more xylem and sclerenchyma
(C) Stomata absent or only on upper side of the leaf
(D) Poor development of fruit
The hydrophyte that have contact with water only
(A) Nymphaea
(B) Ceratophyllum
(C) Vallisneria
(D) Typha
Epidermis is useful for both absorption and assimilation in
(A) Mesophytes
(B) Mangroves
(C) Xerophytes
(D) Hydrophytes
Find the pair of hydrophytes that are neither in contact with soil nor air
(A) Vallisneria, Hydrilla
(B) Hydrilla, Utricularia
(C) Salvinia, Azolla
(D) Limnophila, Ceratophyllum
Abundant aerenchyma and xylem cavity in the stele are the features found in
(A) Stem of Hydrilla
(B) Roots of Cicer
(C) Stem of Opuntia
(D) Roots of Asparagus
Select the parr of plants that show contact with soil and water, but not with air
(A) Potamogeton, Vallisneria
(B) Hydrilla, Ceratophyllum
(C) Wolffia,Sagittaria
(D) Cyperus,Typha
Submerged plant among of the following
(A) Hydrilla
(B) Pistia
(C) Lotus
(D) Water lily
Typha is an example of
(A) Free floating plant
(B) Submerged plant
(C) Floating and attached
(D) Emergent plant
In submerged hydrophytes, gaseous exchange occurs through
(A) Hydathodes
(B) Stomata
(C) General body surface
(D) Injured parts
Useful adaptation for hydrophytes
(A) Large leaves
(B) Decrease in mechanical tissue
(C) Large mechanical tissue
(D) Increase in aerenchyma
Hydrophytes like Nymphaea and Nelumbo are
(A) Free floating hydrophytes
(B) Amphibious plant
(C) Submerged rooted hydrophytes
(D) Rooted hydrophytes with free floating leaves
Anatomically all hydrophytes are similar in having
(A) Aerenchyma
(B) Collenchyma
(C) Stomata
(D) Cuticle
Ephemeral plants are categorized under
(A) Drought enduring plants
(B) Drought escaping plants
(C) True xerophytes
(D) Drought avoiding plants
Drought avoiding plants are
(A) Hydrophytes
(B) Mesophytes
(C) Succulents
(D) Parasites
Which one suffers from both external and internal dryness
(A) Opuntia
(B) Zizyphus
(C) Tribulus
(D) Aloe
The xerophyte with succulent phylloclades
(A) Casuarina
(B) Ruscus
(C) Aloe
(D) Opuntia
Sunken stomata are present in
(A) Xerophytes
(B) Hydrophytes
(C) Mesophytes
(D) Air the above
Sunken stomata and multiple epidermis occur in
(A) Hydrilla
(B) Mangifera
(C) Nerium
(D) Vallisneria