Which is not the function of transpiration
Which is not the function of transpiration?
Options
(a) cool leaf surface (b) Maintains shape and structure of plant (c) Help in translocation of sugars from source to sink (d) provide water for […]
UP1995
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).
In photosynthesis oxygen comes from
In photosynthesis, oxygen comes from
Options
(a) soil (b) atmosphere (c) water (d) carbon dioxide
Correct Answer:
water
Explanation:
During non-cyclic photophosphorylation photolysis of water, release of O₂ and formation of NADPH takes place, […]
Cell wall of plants is composed of
Cell wall of plants is composed of
Options
(a) cellulose and pectin (b) cellulose and cellulose (c) cellulose and glycogen (d) glycogen and starch
Correct Answer:
cellulose and pectin
Explanation:
No explanation available. Be […]
In the conversion of pyruvic acid to acetyl coenzyme A, pyruvic acid is
In the conversion of pyruvic acid to acetyl coenzyme A, pyruvic acid is
Options
(a) oxidized (b) isomerised (c) reduced (d) broken into one-carbon fragment
Correct Answer:
oxidized
Explanation:
Pyruvic acid is the […]
Pyruvic acid is
Pyruvic acid is
Options
(a) product of Kreb’s cycle (b) released at photosynthesis (c) product of Calvin cycle (d) broken down into two C atoms and CO₂
Correct Answer:
broken down into two […]
Chlorine is in +1 oxidation state in which of the following
Chlorine is in +1 oxidation state in which of the following
Options
(a) HCl (b) Cl₂O (c) HClO₄ (d) Cl₂
Correct Answer:
Cl₂O
Explanation:
Let x be the oxidation number of Cl […]
Acetanilide can be prepared,from aniline with
Acetanilide can be prepared,from aniline with
Options
(a) ethanol (b) acetaldehyde (c) acetone (d) acetic anhydride
Correct Answer:
acetic anhydride
Explanation:
No explanation available. Be the first to write the explanation for this […]
Chlorine is in +1 oxidation state in which of the following
Chlorine is in +1 oxidation state in which of the following
Options
(a) HCl (b) Cl₂O (c) HClO₄ (d) Cl₂
Correct Answer:
Cl₂O
Explanation:
No explanation available. Be the first to write the […]
The normality of solution containing 31.5g of hydrated oxalic acid (H₂C₂O₄.2H₂O)
The normality of solution containing 31.5 g of hydrated oxalic acid (H₂C₂O₄.2H₂O) in 1250 mL of solution is
Options
(a) 0.8 N (b) 0.2 N (c) 0.4 N (d) 0.1 N
Correct Answer:
0.4 […]