O evolution is directly associated with
O₂ evolution is directly associated with:
Options
(a) PS I (b) PS II (c) phytochrome (d) phycocyanin
Correct Answer:
PS II
Explanation:
During photolysis of water the electrons released are picked up by […]
Biology
Number of teeth which grow twice are
Number of teeth which grow twice are
Options
(a) 8 (b) 14 (c) 12 (d) 20
Correct Answer:
20
Explanation:
The number of milk teeth which are replacable for the 2nd time is […]
Number of chlorophyll arranged per reaction centre in the light harvesting
Number of chlorophyll arranged per reaction centre in the light harvesting complex are
Options
(a) 100 (b) 200 (c) 300 (d) 400
Correct Answer:
200
Explanation:
No explanation available. Be the first to […]
Number of cervical vertebrae in human is
Number of cervical vertebrae in human is
Options
(a) 7 (b) 5 (c) 12 (d) 10
Correct Answer:
7
Explanation:
Cervical vertebrae pertain to neck region in mammals. In mammals, it is seven […]
Nucleuscore of the chlorophyll contains
Nucleus/core of the chlorophyll contains
Options
(a) Fe (b) Mn (c) Mg (d) CH₃
Correct Answer:
Mg
Explanation:
Nucleus/core of chlorophyll contains magnesium. The chlorophylls are basically chelate salts of magnesium (Mg).
Nucellar polyembryony is reported in species of
Nucellar polyembryony is reported in species of
Options
(a) Gossypium (b) Triticium (c) Brassica (d) Citrus
Correct Answer:
Gossypium
Explanation:
The presence of more than one embryo in a seed is referred as […]
Nobel prize for medicine was given for confirming the role of Helicobacter
Nobel prize for medicine was given for confirming the role of Helicobacter pylori in causing
Options
(a) nephritis (b) rhinitis (c) bronchitis (d) peptic ulcer
Correct Answer:
peptic ulcer
Explanation:
For their discovery […]
Nitrogen is absorbed by plants in form of
Nitrogen is absorbed by plants in form of
Options
(a) NO⁻₃ (b) NH₃ (c) NO⁻₂ (d) both NO⁻₃ and NO⁻₂
Correct Answer:
both NO⁻₃ and NO⁻₂
Explanation:
No explanation available. Be the first […]
Nissl bodies are mainly composed of
Nissl bodies are mainly composed of
Options
(a) Free ribosomes and RER (b) Nucleic acids and SER (c) DNA and RNA (d) Proteins and lipids
Correct Answer:
Free ribosomes and RER
Explanation:
Nissl […]
Ninetenth of all photosynthesis in the world 8590 is carried out by
Nine-tenth of all photosynthesis in the world (85-90%) is carried out by
Options
(a) large trees with millions of branches and leaves (b) algae of the ocean (c) chlorophyll containing ferns of forest […]