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