In 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

The guta of cow and buffalo possess

• Fucus sp

• Chlorella sp

• Methanogens

• Methanogens

Keel is the characteristic feature of flower of

• Tulip

• Indigofera

• Aloe

• Aloe

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

Typical growth curve in plants is

• sigmoid

• linear

• Stair-steps shaped

• Stair-steps shaped

Typical growth curve in plants is 

• sigmoid

• linear

• stair-steps shaped

• stair-steps shaped

Which one gives the most valid and recent explanation for stomatal movements?

• Transpiration

• Potassium influx and efflux

• Starch hydrolysis

• Starch hydrolysis