The deficiency of this micro nutrient results in ‘little leaf’ disease.
Options
(a) copper (b) Zinc (c) boron (d) iron
Correct Answer:
Zinc
Explanation:
No explanation available. Be the first to write the […]
The deficiencies of micronutrients not only affects the growth of the plants but also its vital functions, such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements will […]
The conidiophores of Penicillium are
Options
(a) uninucleate and colourless (b) uninucleate and pigmented (c) binucleate and colourless (d) binucleate and pigmented
Correct Answer:
uninucleate and pigmented
Explanation:
Species of Penicillium are recognised […]
The chemical structure of chlorophyll a varies from chlorophyll b due to difference between
Options
(a) CH₃ and C₂H₅ (b) CH₃ and HCH=CH₂ (c) CH₃ and CHO (d) CHO and CH=CH₂
Correct Answer: […]
The cellular transport method which involves use of transmembrane proteins without energy expenditure is called
Options
(a) diffusion (b) facilitated diffusion (c) active transport (d) exocytosis
Correct Answer:
facilitated diffusion
Explanation:
No explanation […]
The cell organelle which is found between the cell wall and cell membrane is
Options
(a) lysosome (b) microsome (c) lomasome (d) middle lamella
Correct Answer:
lomasome
Explanation:
No explanation available. Be the […]
The cell as a basic unit of structure of living things was discovered by
Options
(a) Aristotle (b) Robert Hooke (c) Schleidan and Schwann (d) Gregor Mendel
Correct Answer:
Schleidan and Schwann
Explanation: […]
The branch of biology dealing with structure, function and reproduction of cell is
Options
(a) cytology (b) anatomy (c) histology (d) cell biology
Correct Answer:
cell biology
Explanation:
No explanation available. Be the […]
The bonds associated with the secondary structure of protein molecules are
Options
(a) peptide bonds (b) phosphodiester bonds (c) hydrogen bonds (d) energy rich bonds
Correct Answer:
hydrogen bonds
Explanation:
No explanation available. […]
The blood calcium level is lowered by the deficiency of
Options
(a) parathormone (b) thyroxine (c) both calcitonin and parathormone (d) calcitonin
Correct Answer:
parathormone
Explanation:
A peptide hormone secreted by the parathyroid […]
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