Which is near to the plasma membrane?
Options
(a) tonoplast (b) primary cell wall (c) secondary cell wall (d) middle lamella
Correct Answer:
secondary cell wall
Explanation:
No explanation available. Be the first […]
Which is correct about cell theory in view of current status of our knowledge about cell structure
Options
(a) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria (b) […]
Which is activated in stress condition
Options
(a) Sympathetic (b) Parasympathetic (c) Somatic (d) Whole ANS
Correct Answer:
Sympathetic
Explanation:
Sympathetic nervous system increases defence system of body against adverse conditions. IT is […]
Which hormones promote the flowering in long day plants and also control sex expression in certain species?
Options
(a) ethylene (b) gibberellin (c) cytokinins (d) auxin
Correct Answer:
gibberellin
Explanation:
Gibberelins are growth […]
Which hormone is maximum in coconut milk?
Options
(a) gibberellin (b) ethylene (c) cytokinin (d) auxin
Correct Answer:
cytokinin
Explanation:
Capability of induction of cell division was observed in wounded potato tuber (Haberlandt, […]
Which factor is not under limiting normal conditions for photosynthesis?
Options
(a) Air (b) CO₂ (c) H₂O (d) Chlorophyll
Correct Answer:
Air
Explanation:
Under the normal conditions, the chlorophyll is not the limiting […]
Which elements are essential for the photophosphorylation?
Options
(a) Mg and P (b) Zn and I (c) K and Cl (d) Mn and Cl
Correct Answer:
Mn and Cl
Explanation:
Photophosphorylation can be […]
Which are smallest cell organelles?
Options
(a) Lysosomes (b) ribosomes (c) sphaerosomes (d) glyoxysomes
Correct Answer:
ribosomes
Explanation:
Site of protein synthesis
Which among the following is not a class of phylum mollusca
Options
(a) gastropoda (b) scaphopoda (c) cephalopoda (d) hexapoda
Correct Answer:
hexapoda
Explanation:
No explanation available. Be the first to write the […]
Which among the following has highest water potential?
Options
(a) 1 m salt solution (b) 1 m glucose solution (c) distilled water (d) 1 m iodide solution
Correct Answer:
distilled water
Explanation:
Distilled […]
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