Multiple Choice QuestionsIn which of the following gametophyte is not independent free-living?
Funaria
Marchantia
Pteris
Pteris
Which one of the following statements is wrong?
Algin and carrageenian are products of algae.
Agar-agar is obtained from Gelidium and Gracilaria
Chlorella and Spirulina are used as space food
Chlorella and Spirulina are used as space food
Keel is the characteristic feature of flower of
Tulip
Indigofera
Aloe
Aloe
B.
Indigofera
Keel is petal is vexillary aestivation, which is a characteristic of family - Fabaceae, i.e. Indigofera tomato belongs to family - Solanaceae, tulip and while aloe to Liliaceae.
Papilionaceae (e.g. Indigofera, pea) is sub-family of Fabaceae, which has bilateral symmetry with corolla consist of 5 petals. It follows vexillary aestivation. A single upper posterior petal is known as banner. Two lateral compressed petals called wings and a pair of anterior small fused petal forms keel. Keel has concave sides which make them fused at bases. 
Hence, keel is the characteristic feature of flower of family - Papilionaceae. e.g. Indigofera.
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are
cristate
grana
stroma lamellae
stroma lamellae
The chromosomes in which centromere is situated close to one end are
metacentric
acrocentric
telocentric
telocentric
Select the correct matching in the following pairs
Smooth ER — Oxidation of phospholipids
Smooth ER — Synthesis of lipids
Rough ER — Synthesis of glycogen
Rough ER — Synthesis of glycogen
Which one gives the most valid and recent explanation for stomatal movements?
Transpiration
Potassium influx and efflux
Starch hydrolysis
Starch hydrolysis
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