List of practice Questions

Stomatal aperture is surrounded by guard cells and widens (opens) when guard cells are _____________.
Tetrad analysis confirmed the occurrence of crossing over during tetrad stage. This was first reported in_____.
The amount of energy provided by fat is ____.
The carbonic anhydrases form a family of enzymes that catalyze the interconversion between carbon dioxide and water and the dissociated ions of carbonic acid. Want to know a famous achievement of these enzymes? Check out this question.The fastest acting enzyme in the biological kingdom is:
The filtration slits are formed in the Bowman’s capsule by ________.
The path that leads from the throat to the lungs is known as:
The percentage of forest cover recommended by the 'National Forest Policy' (1988) is:
The second heart sound during the cardiac cycle is produced by the:
The sex of the children will be determined by what they inherit from the:
The sino-atrial node is the normal pacemaker of the human heart because:
To which of the following interactions both partners are adversely effected _______.
Transcription refers to:
Unidirectional transmission of a nerve impulse through nerve fiber is due to the fact that:
What is true in process of fertilization?
What percentage of ventricular filling is achieved by atrial contraction?
Which of the following correctly represents the arrangement of organisms in increasing order of concentration of heavy metals in their body?
Which of the following gases is primarily responsible for eutrophication of water bodies?
Which of the following is a factor on which the transport of food in plants depends?
Which one of the following is a decomposer?
Which one of the following is correct regarding the factors that affects water absorption in plants?
Which one of the following shows the correct sequence of the path of urine in the human excretory system?
Who is known as the direct ancestor of modern man?
A person with AB blood group:
A substance intentionally added that affects the nature and quality of food is called _____.
After fertilization the ovule develops into: