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Questions >> JEEMAIN and NEET >> Biology

Biology

Diversity in Living World

Structural Organisation in Animals and Plants

Cell Structure and Formation

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Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on 3 columns can be matched to multiple options on the another 2 columns) eg. A-(iv)-3,5; B-(i)-6; C-(iii)-2; D-(ii),(vi),(vii)-1

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on 3 columns can be matched to multiple options on the another 2 columns) eg. A-(iv)-3,5; B-(i)-6; C-(iii)-2; D-(ii),(vi),(vii)-1

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

asked Apr 2, 2014 by pady_1

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:If a bottle filled with volatile substance is opened at a corner of the room the odour of substance can be smelled from another corner}\\\text{Reason:The volatile substances diffuse from the region of higher concentration to the region of lower concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The water molecules are held together from substomatal cavities in leaves to the roots because of cohesive force}\\\text{Reason:Water does not ascend in stem due to transpiration pull}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Plasmolysis occurs when the plant cells are highly placed in concentrated sugar or salt solution}\\\text{Reason:Highly concentrated sugar or salt solution acts as hypotonic solution which leads to exosmosis}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The cells of the root have lower water potential than leaf cells }\\\text{Reason:Root cells have greater solute concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses$\begin{array}{1 1}\text{Assertion:Root pressure is the reason for ascent of sap in herbaceous plants}\\\text{Reason:Root pressure is due to diffusion pressure gradient and is maintained by the activity of living cells}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

According to central pollution central board (CPCB) which size of particulate matter are responsible for causing the greatest harm to human health?

asked Apr 2, 2014 by sreemathi.v

1 answer

Correct figure representing the concentration of DDT at different trophic levels at Victoria lake:-

asked Apr 2, 2014 by sreemathi.v

1 answer

Maximum green house gases are released by which country :-

asked Apr 2, 2014 by sreemathi.v

1 answer

The cutting of trees from the forests of hill near catchment area

asked Apr 2, 2014 by sreemathi.v

1 answer

Acidic rain is due to increase in atmospheric concentration of :-

asked Apr 2, 2014 by sreemathi.v

1 answer

Which of the following gas cause 'green house effect'

asked Apr 2, 2014 by sreemathi.v

1 answer

Which of the following organisms is likely to have more concentration of DDT in its body?

asked Apr 2, 2014 by sreemathi.v

2 answers

The term 'Biomagnification' refers to :-

asked Apr 2, 2014 by sreemathi.v

1 answer

In tertiary water treatment,for the removal of pathogens which substance can be used?

asked Apr 2, 2014 by sreemathi.v

1 answer

Destruction of stratospheric ozone is due to

asked Apr 2, 2014 by sreemathi.v

1 answer

World summit for sustainable development was held in 2002 at:-

asked Apr 2, 2014 by sreemathi.v

1 answer

What is the total no of biodiversity hot spots

asked Apr 2, 2014 by sreemathi.v

1 answer

Saving biodiversity so as to presence the resource provided by them is which argument of biodiversity conservation :-

asked Apr 2, 2014 by sreemathi.v

1 answer

Due to extinction of pollinator bee,a plant with obligate mutualism with this bee got extinct.This can be placed in which cause of extinction?

asked Apr 2, 2014 by sreemathi.v

1 answer

High species diversity:-

asked Apr 2, 2014 by sreemathi.v

1 answer

According to an estimate by Robert May, total species diversity is about:

asked Apr 2, 2014 by sreemathi.v

1 answer

Mild grazing in grassland by herbivores:-

asked Apr 2, 2014 by sreemathi.v

1 answer

Frequent blooms in a pond indicate:-

asked Apr 2, 2014 by sreemathi.v

1 answer

Chipko movement is related to :-

asked Apr 2, 2014 by sreemathi.v

1 answer

Which type of act has been formed for restriction & prohibition on hunting of animals & protection of specified plants?

asked Apr 2, 2014 by sreemathi.v

1 answer

Which of the following acts as a reservoir for phosphorus:-

asked Apr 1, 2014 by sreemathi.v

1 answer

Which of the following is a sedimentary cycle :-

asked Apr 1, 2014 by sreemathi.v

1 answer

Amount of nutrients ,such as carbon,nitrogen,phosphorus,calcium etc present in soil at any given time is :-

asked Apr 1, 2014 by sreemathi.v

1 answer

Succession taking in water :-

asked Apr 1, 2014 by sreemathi.v

1 answer

Final community which stays in equillibrium with the environment is called :-

asked Apr 1, 2014 by sreemathi.v

1 answer

Which of the following acts as a reservoir of nutrients in soil

asked Apr 1, 2014 by sreemathi.v

1 answer

Limitation of ecological pyramid is/are:-

asked Apr 1, 2014 by sreemathi.v

1 answer

In which process of decomposition enzymatic conversion of the decomposing detritus to simpler compound & inorganic substances occur?

asked Apr 1, 2014 by sreemathi.v

1 answer

Sources of energy in deep sea water is/are:-

asked Apr 1, 2014 by sreemathi.v

1 answer

Which one of the following statements for pyramid of energy is incorrect,where as the remaining 3 are correct?

asked Apr 1, 2014 by sreemathi.v

1 answer

An ecosystem comprising of producers,herbivores & carnivores is an incomplete ecosystem.It doesnot include

asked Apr 1, 2014 by sreemathi.v

1 answer

Mass of living matter at a trophic level in an area at any time is called:-

asked Apr 1, 2014 by sreemathi.v

1 answer

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