Typical growth curve in plants is
sigmoid
linear
Stair-steps shaped
Stair-steps shaped
A.
sigmoid
Sigmoid curve shows the growth in plants. It contains three phases
(i) Lag phase(initial phase)
(ii) Log phase(initial phase)
(iii) Steady phase (stationary phase).
In which of the following gametophyte is not independent free-living?
Funaria
Marchantia
Pteris
Pteris
Which one gives the most valid and recent explanation for stomatal movements?
Transpiration
Potassium influx and efflux
Starch hydrolysis
Starch hydrolysis
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 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
