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Morphology Of Flowering Plants

285 Questions Start Allen Test
All Exams Allen Errorless
Q26 Allen 2. LEAF, INFLORESCENCE MCQ
Opposite simple leaves with reticulate venation are present in :-
A.
Neem
B.
Calotropis
C.
Sunflower
D.
Alstonia
Q27 Allen 2. LEAF, INFLORESCENCE MCQ
Select correct option in which compound leaf is found :-
A.
Neem
B.
Mango
C.
Peepal
D.
Radish
Q28 Allen 2. LEAF, INFLORESCENCE MCQ
In which of following type of phyllotaxy a pair of leaves arise at each node?
A.
Guava
B.
Mustard
C.
Alstonia
D.
Sunflower
Q29 Allen 2. LEAF, INFLORESCENCE MCQ
The two sketches A and B given below represents two different types of leaves. Select the option in which both are correctly identified :- (A)image missing (B)image missing
A.
a-leaf
b-compound leaf
B.
a-compound leaf
b-simple leaf
C.
a-pinnately compound leaf
b-palmately compound leaf
D.
a-palmately compound leaf
b-pinnately compound leaf
Q30 Allen 2. LEAF, INFLORESCENCE MCQ
The green and expanded part of the leaf with vein and veinlets is known as :-
A.
Leaf base
B.
Petiole
C.
Lamina
D.
Stipule
Q31 Allen 2. LEAF, INFLORESCENCE MCQ
The pattern of arrangement of leaves on the stem or branch is known as :-
A.
Venation
B.
Aestivation
C.
Phyllotaxy
D.
Inflorescence
Q32 Allen 2. LEAF, INFLORESCENCE MCQ
Function of petiole :-
A.
Hold the leaf blade
B.
Flutter the leaf blade in wind
C.
Bringing fresh air to leaf surface
D.
All of the above
Q33 Allen 2. LEAF, INFLORESCENCE MCQ
In Nepenthes (pitcher plant), the pitcher is formed due to modification of :-
A.
Leaf petiole
B.
Leaf lamina
C.
Tendril
D.
Leaflet
Q34 Allen 2. LEAF, INFLORESCENCE MCQ
Pulvinus is found in :-
A.
Grasses
B.
Some crucifers
C.
Some cucurbits
D.
Some leguminous plants
Q35 Allen 2. LEAF, INFLORESCENCE MCQ
Identify the order where plants show alternate, opposite and whorled phyllotaxy.
A.
China rose, Calotropis and Alstonia
B.
China rose, Nerium and Calotropis
C.
Nerium, Calotropis and China rose
D.
Calotropis, China rose and Nerium
Q36 Allen 2. LEAF, INFLORESCENCE MCQ
Sheathing leaf base is found in :-
A.
Leguminous plants
B.
Monocot plants
C.
Gymnosperm plants
D.
Pteridophytes
Q37 Allen 2. LEAF, INFLORESCENCE MCQ
Winged petiole is commonly found in :-
A.
Leguminous plants
B.
Crucifer plants
C.
Monocots
D.
Citrus
Q38 Allen 2. LEAF, INFLORESCENCE MCQ
Choose correct exmaple for above given figure.
A.
China rose, mustard
B.
Gauva, calotropis
C.
Alstonia
D.
Neem, Mango
Q39 Allen 2. LEAF, INFLORESCENCE MCQ
Find the incorrect statement.
A.
In pinnately compound leaf rachis is present.
B.
Rachis, actually represents the mid-rib of the leaf in a pinnately compound leaf.
C.
In palmately compound leaf rachis is present.
D.
Silk cotton has got palmately compound leaf.
Q40 Allen 2. LEAF, INFLORESCENCE MCQ
Swollen leaf base is called
A.
Pulvinus
B.
Sheathing leaf base
C.
Stipule
D.
Pulvinate
Q41 Allen 2. LEAF, INFLORESCENCE MCQ
In\_\_\_A\_\_type of inflorescence, main axis terminates in a flower, hence is limited in growth and flowers are borne in\_\_\_B\_\_ succession. Choose the correct option to replace A and B.
A.
1
B.
2
C.
3
D.
4
Q42 Allen 2. LEAF, INFLORESCENCE MCQ
When a shoot tip transforms into a flower?
A.
Pollination can not be normal
B.
It is always solitary
C.
Flower opening is centripetal
D.
Growth is indefinite
Q43 Allen 2. LEAF, INFLORESCENCE MCQ
In Cymose inflorescence the main axis :-
A.
has unlimited growth
B.
bear a solitary flower
C.
has unlimited growth but lateral branches end in flower
D.
terminates in a flower
Q44 Allen 2. LEAF, INFLORESCENCE MCQ
Assertion : In Racemose inflorescence flowers are arranged in acropetal succession. Reason : In this type of inflorescence shoot apex transforms into flower.
A.
Both A and R true but R is not correct explanation of A.
B.
A is true but R is false.
C.
Both A and R are true and R correct explanation of A.
D.
A is false but R is true.
Q45 Allen 2. LEAF, INFLORESCENCE MCQ
Identify this inflorescence :-
A.
Cymose
B.
Cyathium
C.
Racemose
D.
Hypanthodium
Q46 Allen 2. LEAF, INFLORESCENCE MCQ
Which of the following is correct for the type of inflorescence given below ?
A.
The main axis terminates in a flower.
B.
The main axis is of limited growth.
C.
The flowers are borne in a basipetal order.
D.
All are correct
Q47 Allen 2. LEAF, INFLORESCENCE MCQ
The arrangement of veins & the veinlets in the lamina of leaf is termed as :-
A.
Phyllotaxy
B.
Placentation
C.
Venation
D.
Vernation
Q48 Allen 3. FLOWER MCQ
The floral leaves arise from :-
A.
Mother axis
B.
Thalamus
C.
Root
D.
Pedicel
Q49 Allen 3. FLOWER MCQ
If the filaments are fused in a single group the condition is :-
A.
Monoadelphous
B.
Polyadelphous
C.
Both (1) & (2)
D.
Diadelphous
Q50 Allen 3. FLOWER MCQ
Pappus is modification of :-
A.
Bracts
B.
Corolla
C.
Calyx
D.
All