Velamen present in orchids helps in
(1) absorption of nutrients from host plant
(2) respiration
(3) absorption of moisture from air
(4) synthesising food
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich among the following is a rootless plant?
(1) Nymphaea
(2) Sagittaria
(3) Ceratophyllum
(4) Vallisneria
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyComposite fruit develops from
(1) single ovary
(2) inflorescence
(3) apocaropous ovary
(4) pericarp
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCocoa is the plant from which chocolate is made. Which part is used to extract it?
(1) Flower
(2) Fruit
(3) Seeds
(4) Bark
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe cells of the quiescent centre are characterised by
(1) having dense cytoplasm and prominent nuclei
(2) having light cytoplasm and small nuclei
(3) dividing regularly to add to the corpus
(4) dividing regularly to add to tunica
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is true?
(1) Umbel is a racemose inflorescence where all stalked flower aggregate on the flat receptacle.
(2) Raceme is a racemose inflorescence having main axis shortened & flower born acropetally.
(c) Spadix is a racemose inflorescence having pendulous spike with main axis much flattened.
(d) Spike is a racemose inflorescence having sessile flowers
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe given figure shows L.S of the seed of maize. What do A, B, C, and D represent?
(1) |
A : endosperm |
B : scutellum |
|
C : plumule |
D : coleoptile |
(2) |
A : scutellum |
B : pericarp |
|
C : radicle |
D : coleoptile |
(3) |
A : endosperm |
B : scutellum |
|
C : radicle |
D : coleorrhiza |
(4)
|
A : scutellum C : plumule |
B : pericarp D : coleorrhiza |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the given figures A, B, C, D and E.
|
A |
B |
C |
D |
E |
(1) |
Marginal |
Axile |
Free Central |
Parietal |
Basal |
(2) |
Marginal |
Parietal |
Free central |
Axile |
Basal |
(3) |
Marginal |
Axile |
Parietal |
Free central |
Basal |
(4) |
Marginal |
Axile |
Parietal |
Basal |
Free central |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is correctly matched?
(1) Monstera - Fibrous root
(2) Dahlia - Fasciculated root
(3) Azadirachta - Adventitious root
(4) Basil - Prop roots
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPlants with inferior ovary usually bear
(1) pseudocarps
(2) berries
(3) aggregate fruits
(4) seedless fruits
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology