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Recent questions in Biology

Questions >> JEEMAIN and NEET >> Biology

Biology

Diversity in Living World

Structural Organisation in Animals and Plants

Cell Structure and Formation

Plant Physiology

Human Physiology

Genetics and Evolution

Biology in Human Welfare

Biotechnology and its Applications

Ecology and Environment

Biotechnology - Principles and Processes

Very low density lipoproteins (VLDLs) transport endogenous triacylglycerols and cholesterol from

asked Apr 3, 2014 by pady_1

0 answers

Apoptosis or programmed cell death, is executed by a group of proteases called

asked Apr 3, 2014 by pady_1

1 answer

Name the coenzyme for pantothenic acid and its deficiency disease

asked Apr 3, 2014 by pady_1

0 answers

Expand MALDI-TOF

asked Apr 3, 2014 by pady_1

0 answers

Isoelectric focusing can be combined with SDS-PAGE to obtain very high resolution separations in a procedure known as

asked Apr 3, 2014 by pady_1

1 answer

In which chromatography technique, molecules are separated on the basis their size and shape ?

asked Apr 3, 2014 by pady_1

1 answer

One collagen deficiency disease, that occurs due deficiency in lysyl oxidase and results in hypermobile joints and hyperextensibility of the skin is

asked Apr 3, 2014 by pady_1

1 answer

The linear sequence of amino acids joined together by peptide bonds is termed as the

asked Apr 3, 2014 by pady_1

1 answer

Visualization of proteins in living cells has been revolutionized by the discovery of which protein found in the jelly fish Aquorea victoria ?

asked Apr 3, 2014 by pady_1

0 answers

When gram negative bacteria is acted upon by lysozyme, in an isotonic medium, it causes rod shaped bacteria to assume spherical shape. This phenomena is due to

asked Apr 3, 2014 by pady_1

0 answers

Virus mediated transfer of the genetic material from one bacterial cell to the other by means of virus particles is called

asked Apr 3, 2014 by pady_1

1 answer

When a ligand or a hormone is binded to the GPCRs , a group of cell surface receptors activates which proteins ?

asked Apr 3, 2014 by pady_1

0 answers

Membrane and secretory proteins are sorted and packaged in which part of the cell before they are secreted ?

asked Apr 3, 2014 by pady_1

1 answer

Inositol 1,4,5-trisphosphate (IP3) in cell signaling is referred as

asked Apr 3, 2014 by pady_1

1 answer

cAMP and cGMP are broken down by which enzymes ?

asked Apr 3, 2014 by pady_1

1 answer

Diacylglycerol activates which of the following enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

An enzyme that catalyzes the reaction, AB changes the

asked Apr 3, 2014 by pady_1

1 answer

During oxidative phosphorylation in mitochondria which of the following takes place ?

asked Apr 3, 2014 by pady_1

0 answers

ATP synthase that carries out the synthesis of ATP is located in _______ .

asked Apr 3, 2014 by pady_1

1 answer

Which part of the cell is involved in communicating with the other cells, through binding of ligands i.e. hormones, neurotransmitters etc. to the receptor proteins on its surface ?

asked Apr 3, 2014 by pady_1

1 answer

In the first step of fatty acid biosynthesis, the carboxylation of acetyl CoA to fom malonyl CoA is catalyzed by the enzyme acetyl CoA carboxylase, that has _______ as a cofactor.

asked Apr 3, 2014 by pady_1

0 answers

Catalytic RNA molecules that catalyze specific reactions are known as

asked Apr 3, 2014 by pady_1

1 answer

If plant cell is immersed in water the water continues to enter the cell untill the

asked Apr 3, 2014 by sreemathi.v

1 answer

When beet root cylinders are washed and then placed in cold water,anthocyanine does not come out.This indicates that most likely the plasma membrane is

asked Apr 3, 2014 by sreemathi.v

1 answer

An example of selectively permeable membrane

asked Apr 3, 2014 by sreemathi.v

1 answer

When a cell is fully turgid which of the following will be zero

asked Apr 3, 2014 by sreemathi.v

1 answer

In hypertonic solution cell's water potential

asked Apr 3, 2014 by sreemathi.v

1 answer

Plasma membrane controls

asked Apr 3, 2014 by sreemathi.v

1 answer

Initial absorption of water by root hairs is through

asked Apr 3, 2014 by sreemathi.v

1 answer

Root hairs absorbs water from soil when

asked Apr 3, 2014 by sreemathi.v

1 answer

DPD is equal to

asked Apr 3, 2014 by sreemathi.v

1 answer

A cell is plasmolysed after being kept in hypertonic solution.What will be present between cell wall and plasmalemma?

asked Apr 3, 2014 by sreemathi.v

1 answer

Dry seeds when placed in water swell up due to

asked Apr 3, 2014 by sreemathi.v

1 answer

Osmosis involves

asked Apr 3, 2014 by sreemathi.v

1 answer

Fresh grapes shall shrink when they are placed in

asked Apr 3, 2014 by sreemathi.v

1 answer

Which helps in maintaining form and structure of cell?

asked Apr 3, 2014 by sreemathi.v

1 answer

Cell turgidity is caused by

asked Apr 3, 2014 by sreemathi.v

1 answer

Net movement of water is from

asked Apr 3, 2014 by sreemathi.v

1 answer

The external solution having less concentration than the cell sap is called

asked Apr 3, 2014 by sreemathi.v

1 answer

The external solution having same concentration as that of cell sap is called

asked Apr 3, 2014 by sreemathi.v

1 answer

The external solution having more concentration than the cell sap is called

asked Apr 2, 2014 by sreemathi.v

1 answer

The membrane that allows some solute molecules to pass through it and prevent others is called

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The roots of transpiring plants is directly proportional to relative humidity}\\\text{Reason:Humid air increases the rate of diffusion so that the rate of transpiration increases}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Regarding time frame for embryonal & fetal development : Match the following & choose the most appropriate option:

asked Apr 2, 2014 by pady_1

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Most of the water absorbed by the plants is lost by transpiration}\\\text{Reason:Water is not needed for vital activities of plants}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Regarding Blood groups : Match the following and choose the incorrectly matched / combination least likely to be seen : (each option on 3 columns can be matched to multiple options on the another 2 columns) eg. A-(iv)-3,5; B-(i); C-(iii)-2; D-(ii),(vi),(vii)-1; (iii),(v)-6;

asked Apr 2, 2014 by pady_1

1 answer

Match the following & choose the most appropriate option:

asked Apr 2, 2014 by pady_1

1 answer

Regarding Nature of various types of muscles : 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); C-(iii)-2; D-(ii),(vi),(vii)-1; (iii),(v)-6;

asked Apr 2, 2014 by pady_1

2 answers

Regarding Types of Synovial joints and their examples : Match the following & choose the most appropriate option:

asked Apr 2, 2014 by pady_1

1 answer

Regarding DISORDERS OF MUSCULAR AND SKELETAL SYSTEM : 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); C-(iii)-2; D-(ii),(vi),(vii)-1; (iii),(v)-6;

asked Apr 2, 2014 by pady_1

1 answer

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