DMPQ- What are directional and non-directional movements in plants?

Directional Movements Directional changes are called tropic movements. Tropic movements are the one which occurs in the direction of the stimulus. Positive phototropism is responding by bending towards the sunlight which can be seen in shoots. Negative geotropism is growing away from the ground which is also shown by shoots. Roots exhibit negative photo tropism … Read more DMPQ- What are directional and non-directional movements in plants?

DMPQ- What is composting?

Composting is an anaerobic microbially driven process that converts organic wastes into stable sanitary humus like material. This material can then be safely returned to the natural environment. This method is actually a low moisture, solid substrate fermentation process. In large- scale operations using largely domestic solid wastes, the final product is mostly used for … Read more DMPQ- What is composting?

DMPQ- Write a short note on Community Information Centre.

Department of Electronics and Information Technology (DEIT) had taken up an initiative in February 2002 for setting up of Community Information Centres (CICs) in the hilly, far-flung rural areas of the country to bring the benefits of ICT (Information and Communication Technologies) to the people for socio-economic development of these regions and to alleviate the … Read more DMPQ- Write a short note on Community Information Centre.

DMPQ:Explain the following term: a) Pyramid of Number b) Pyramid of Biomass c) Pyramid of Energy

a) Pyramid of Number: This represents the number of organisms at each trophic level. For example, in grassland the number of grasses is more than the number of herbivores that feed on them and the number of herbivores is more than the number of carnivores. In some instances, the pyramid of number may be inverted, i.e … Read more DMPQ:Explain the following term: a) Pyramid of Number b) Pyramid of Biomass c) Pyramid of Energy

DMPQ:What is VOIP and write its advantages.

VOIP is IP enabled voice calling technology over internet. Example: Skype, Yahoo messenger,MSN messenger.It requires broadband connectivity to make a call along with IP enables  like Computers,Smartphone etc.The voice is converted into digital packets and transmitted to destination over packet switchednetwork. Advantages of VOIP are: Cost of calling is cheaper than normal phone. No need … Read more DMPQ:What is VOIP and write its advantages.

DMPQ:Write a short note on Totipotency.

Many somatic plant cells, including some fully differentiated types (e.g. leaf mesophyll),provided they contain intact nuclear, plastid and mitochondrial genomes, have the capacity to regenerate into whole plants. This phenomenon is totipotency.Totipotent cells from plants have been used in tissue-culture techniques to produce improved plant materials that are pathogen-free and disease-resistant. Totipotent cells fromanimals are … Read more DMPQ:Write a short note on Totipotency.

DMPQ :What is electrostatic precipitator? Explain with the help of diagram.

There are several ways of removing particulate matter; the most widelyused of which is the electrostatic precipitator, which can remove over 99 per cent particulate matter present in the exhaust from a thermal power plant. It has electrode wires that are maintained at several thousand volts, which produce a corona that releases electrons. These electrons … Read more DMPQ :What is electrostatic precipitator? Explain with the help of diagram.