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Subject: Biology, asked on 7/12/16


1) What is meant by cytoplasm streaming and why they are absent in bacterial. tells. 
2) Mesosome is a characteristic circular to villiform  specialisation of cell membrane of bacteria that grows as an in growth from the plasma membrane, consists of vesicles, tubules, and lamellae. What do you understand by viffiform specialisation;, vesicles, tubules, and lamellae. Please explain. 
3) what are ribonucleoprotein.
4) Polyamines or nucleoid proteins are different from histone proteins.
5) how plasmids provide unqiue phenotypic characters to bacteria.' 

Please answer in this thread only. 
 

Subject: Biology, asked on 5/12/16

1) Why minerals are always absorbed by the plants in the form of ions?
2) What are unlabelled K+ ions with labelled K+ ions   ? (Replacement of unlabelled K+ ions with labelled K+ ions takes place during absorption of ions).
3) how nitrogen is a constuent of horomnes and vitamins?

Please answer in this thread only..!
thank you

Subject: Biology, asked on 5/12/16

1 )How toxicity of particular micro nutrients leads to decrease in dry weight of the plant by 10%?
2) What are chlorotic veins, and how manganese toxicity leads to brown spots surrounded by chorotic veins.
3) Calcium is an immobile element, then how inhibition of calcium translocation into shoot apex is effected by the toxicity of manganese. And if it is immobile then how come it be translocated.

Please answer in single thread..!

Subject: Biology, asked on 30/11/16

mam u said dat the element nin great nitrogen is in very less quantity in liebig method n trace elements in high quantities then how will it fulfill the plant requirements as the trace elements,needed in small amounts are more and nitrogen needed in high amounts are less????

Subject: Biology, asked on 12/11/16

define hunger sign

Subject: Biology, asked on 5/11/16

Please help..!

Subject: Biology, asked on 8/10/16

Do hydrophytes perform transpiration? why or why not?
 

Subject: Biology, asked on 10/9/16

Does the chapter "mineral nutrition" contribute anything to the AIPMT? If yes then please specify the portion?

Subject: Biology, asked on 7/9/16

write any four characteristics of parasitic plants?

Subject: Biology, asked on 14/4/16

define the term "10 mmole per kg of dry matter" and also write and explain when the elements is termed as macro or micronutrient. Need the answer very urgently!

Subject: Biology, asked on 18/2/16

Why do plants need potassium ?

Subject: Biology, asked on 6/12/15

State whether the following statements are true or false -
(a) Leghaemoglobin is oxygen scavenger and is related to blood pigment haemoglobin.
(b) Critical concentration is that limited concentration of the essential element below which growth of plant is reduced.
(c) Nodule formation is stimulated by cytokininproduced by cortical cells and auxinliberated by invading bacteria.
(d) Iron activates catalaseenzyme and is essential for formation of chlorophyll.

Subject: Biology, asked on 6/12/15

Which one of the following elements is not remobilisedin leaf?
(a) Nitrogen (b|) Phosphorus (c) Potassium (d) Calcium

Subject: Chemistry, asked on 6/10/15

~~why orbital splitting energy are not sufficinetly large for pairing 

Subject: Biology, asked on 6/10/15

~~why in any reaction we form weak acid and weak base as the final product according to me strong should be formed?

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