CBSE Class 11/12 - Biology - Environmental Biology (MCQs for AIPMT/NEET)

Environmental Biology 

(MCQs for AIPMT/NEET)

Q1: Green-house effect is warming due to

a) infra-red rays reaching the earth
b) moisture layer in atmosphere
c) increase in temperature due to increase in carbon dioxide concentration of atmosphere
d) ozone layer of atmosphere


Q2: The relation between algae and fungi in a lichen is 

a) symbiosis
b) parasitism
c) commensalism
d) protocooperation


Q3: Major aerosol pollutant in jet plane emission is

a) Sulphur dioxide
b) carbon monoxide
c) methane
d) chlorofluoro-carbons

Career in Management After CBSE 12

Career in Management After 12th

In last two decades, management has emerged as the most sought career option.  In the world of globalization, management is one of the largest, most varied, most demanding and most interesting domain of work. In layman language, management is the culmination of art and science of managing people and resources in businesses.

Managers are required in every field, but generally, it symbolises a career in corporate houses, hospitality industry, multinational Management firms etc.

Career in management enables one to understand all major and minor aspects of business administration. Planning, organising, leading, monitoring, essentials of a management delegating and controlling are some curriculum.

CBSE Class 9 - SA2 Social Science Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 9 - SA2 Social Science Sample Question Paper (2016-17)

CBSE Class 10 - SA2 Science Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 10 - SA2 Science Sample Question Paper (2016-17)

CBSE Class 9 - SA2 Science Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 9 - SA2 Science Sample Question Paper (2016-17)

Beware of Fake Institutes and Universities

Beware of Fake Institutes and Universities

The Hindustan Times (Read news story) and India Today(Read news story) published a story about the list of fake universities and unapproved institutes.

It is reported that Delhi has the highest list of 66 fake colleges and 7 fake universities. There are 279 such technical institutes and 23 fake universities in the country.

CBSE Class 8 - Biology - Cell Organelles, Location and Functions (#cbsenotes)

Cell Organelles, Location and Functions

Organelles	Present In	Description	Function
Cell Wall	Plants only	Outer most covering, stiff shape, made of cellulose	Protects the cell from temperature variation, inside water pressure and moisture, procvides structural strength
Cell Membrane	Both plants and animals	Plants inside the cell wall. Animal: thin outermost selectively permeable	Allows exchange of selected substance, supports the cell, separates the cell from its environment.
Nucleus	Both plants and animals	Oval shaped body	Control cell activities, transmits genetics characteristics
Cytoplasm	Both plants and animals	Thick jelly like fluid containing other cell organelles	Site of all life (metabolic) processes, protects cell organelles
Mitochondria	Both plants and animals	Rod shaped body	Site of respiration, releases energy form sugar, called power house of the cell
Golgi body	Both plants and animals	Parallel stacked vesicles	packaging and dispatch of proteins and lipids, helps in lysosomes formation
Endoplasmic reticulum	Both plants and animals	Networks of tubes and membrane	Transportation of materials.
Ribosomes	Both plants and animals	Small bodies, sometimes attached to endoplasmic reticulum	protein synthesis
Vacuole	Plant: single and large. Animal: very small or absent	Sac-like structure in cytoplasm	Stores food and water (cell sap)
Plastids	Only Plants	Small colored bodies in cytoplasm	Impart color to leaf, flower and fruit
Lysosomes	Generally animals	Membrane bound sac in cytoplasm filled with digestive enzymes	Eats up(digests) damaged cells and unwanted cell products

✎Note: See ☛ Class 8 Science - Cell (NCERT Q and A)
☛ Cell - MCQs
☛Cell Structure and Functions (Q and A)