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 […]
UP2009
The prokaryotic cells are characterised by
The prokaryotic cells are characterised by
Options
(a) absence of nuclear membrane (b) presence of distinct chromosomes (c) absence of chromatin material (d) presence of distinct nuclear membrane
Correct Answer:
absence of nuclear […]
The plant hormone controlling fruit ripening is
The plant hormone controlling fruit ripening is
Options
(a) ethylene (b) kinetin (c) I.A.A. (d) GA
Correct Answer:
ethylene
Explanation:
Ethylene (gaseous hormone) aids in ripening of climacteric fruits and dehiscence of dry […]
The first stable compound formed during C cycle is
The first stable compound formed during C₃ cycle is
Options
(a) glycolate (b) formaldehyde (c) phosphoglyceric acid (d) phosphoglyceraldehyde
Correct Answer:
phosphoglyceric acid
Explanation:
In C₃ plants, the carbon dioxide combines with ribulose […]
There are two containers containing gases,one at pressure 30 atm and volume
There are two containers containing gases,one at pressure 30 atm and volume 20 mL and the other at pressure 25 atm.What will be the volume of the container when two are mixed
Options
Tapetum is found in
Tapetum is found in
Options
(a) anther (b) male gametophyte (c) microspore (d) female gametophyte
Correct Answer:
anther
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The hilum and micropyle lie side by side and very close to each other in
The hilum and micropyle lie side by side and very close to each other in
Options
(a) anatropous ovule (b) campylotropous ovule (c) amphitropous ovule (d) circinotropous ovule
Correct Answer:
anatropous ovule
Explanation: […]
Which of the following is a chemical transmitter for neuro impulse conduction?
Which of the following is a chemical transmitter for neuro impulse conduction?
Options
(a) glycine (b) adrenalin (c) GABA (d) acetylcholine
Correct Answer:
acetylcholine
Explanation:
No explanation available. Be the first to write […]
Carbylamine reaction is given by
Carbylamine reaction is given by
Options
(a) N-methyl benzyl amine (b) 2,4-dimethyl aniline (c) N,N-dimethyl amine (d) none of these
Correct Answer:
2,4-dimethyl aniline
Explanation:
No explanation available. Be the first to write […]
At petrol pump, which rubber is used
At petrol pump, which rubber is used
Options
(a) Neoprene (b) Highly vulcanised rubber (c) Orlon (d) None of these
Correct Answer:
Neoprene
Explanation:
No explanation available. Be the first to write the […]