Identify the correct statement(s) regarding the modifications seen in stems:
 
I: Stem tendrils develop from axillary buds and help plants, such as pea, to climb
II: Opuntia modifies its stems into flattened structures to protect itself from browsing animals
III: Underground stems of some plants such as grass and strawberry spread to new niches and when older plants die, new plants are formed.
 
1. I, II, and III
2. Only II and III
3. Only III
4. Only I and III

Subtopic:   Modifications of Stem |
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Colchicum autumnale:
1. is non-endospermous
2. has dithecous anther
3. has reticulate venation
4. exhibits axile placentation
Subtopic:  Semi Technical Description |
 57%
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Identify the incorrectly matched pair:
1. Having the sepals united Gamosepalous
2. Sterile stamen Staminate
3. Stamens attached to perianth Epiphyllous
4. Having the carpels of the gynoecium united in a compound ovary Syncarpous
Subtopic:  Flower & Parts of Flower |
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The members of Family Liliaceae have six:
I: Tepals
II: Fused carpels in the ovary
III: Stamens
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic:  Semi Technical Description |
 56%
From NCERT
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Among flowers of  Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soybean, Tobacco and groundnut how many plants have corolla with valvate aestivation?
1. Six 2. Seven
3. Eight 4. Five
Subtopic:  Flower & Parts of Flower |
From NCERT
NEET - 2013
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The number of correct statements from the given statements is:
I: In a typical dicotyledonous embryo, the portion of the embryonal axis above the level of cotyledons is the epicotyl, which terminates with the plumule or stem tip.
II: In a typical dicotyledonous embryo, the cylindrical portion below the level of cotyledons is hypocotyl, and it terminates at its lower end in the radicle or root tip.
III: In the grass family, the cotyledon is called the scutellum, which is situated towards one side (lateral) of the embryonal axis.
IV: At its lower end, the embryonal axis in monocots has the radical and root cap enclosed in an undifferentiated sheath called coleorhiza.
V: In monocots, the portion of the embryonal axis above the level of attachment of the scutellum is the epicotyl.
   
1. 2 2. 3
3. 4 4. 5
Subtopic:  Seed |
 57%
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Thorns are
a. Modified axillary buds
b. Found in Citrus
c. Modifications of stem to protect plants from browsing animals
1. a and b only
2. b and c only
3. a and c only
4. All a, b and c
Subtopic:  Morphology of Stems |
 58%
From NCERT
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Given below are two statements: 
Assertion (A): Leaves showing parallel venation are found in monocotyledonous plants 
Reason (R): In leaves showing parallel venation, the veins run parallel to one another, veinlets are inconspicuous and reticulations are absent 
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Morphology of Leaf |
 54%
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Although a root system performs many functions, a fibrous root system may especially be excellent for:
1. storage of food
2. absorbing water from the deeper layers of soil
3. nitrogen fixation
4. providing good anchorage to the plant
Subtopic:  Morphology of Roots |
 52%
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Study the given diagram and select the correct statements:
Statement I: A is micropyle through which the pollen tube had entered into the embryo sac.
Statement II: B is hilum through which the developing seeds were attached to the fruit.


1. Statement I is correct; Statement II is correct
2. Statement Iis correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
 
Subtopic:  Seed |
From NCERT
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