List of top Biology Questions

Conversion of pyruvic acid into ethyl alcohol is facilitated by the enzymes
A patient with bleeding gums is advised to take fresh fruits and vegetables in diet specially because he suffers from
The hormone that promotes rapid elongation of intemode or petiole in deep water rice plant is
Which of the following sequence is correct for the origin of lysosome?
Water potential gradient between the absorbent and the' liquid imbibed is essential, for imbibition. In addition, for any substance to imbibe any liquid, one of the following is also a prerequisite.
Transport proteins of endodermal cells are control points, where a plant adjusts the . quantity and type of solutes that reach the xylem. ?Root endodermis is able to actively transport ions in one direction only because of the layer of
Which one of the following combinations is ?
Which one of the following group of animals is homeothermic ?
What is the full form of MAB?
Two-membrane envelope is found in
TCA cycle enzymes are located in
Stock and scion are used in
Indicate the sequence during spermatogenesis.
Endosperm nucleus is
Egg in female gametophyte is accompanied by
Each 100 ml of human arterial blood carries �P� ml of $O_2$ and �Q� ml of $CO_2$ whereas each 100 ml of venous blood carries �R� ml of $O_2$ and �S� ml of $CO_2$. Choose the values of P, Q, R and S.
Nitrogenase enzyme is a
Melatonin is produced from
The hormone that stimulates the release of pancreatic juice is
Wildlife Protection Act India was implemented in the year
Third stage larva of Wuchereria bancrofti carried by Culex mosquito is called
Medullary rays are tissues made up of
Which of the following is a bacterium involved in denitrification?
Which one of the following is not a micronutrient for plants?
Which one of the following statements is/are correct?