List of top Biology Questions

Major photosynthetic pigments in green algae are
Most plants are green in colour because
Mycorrhizal roots of____ are associated with some fungal symbionts.
Name the fern whose leaf tip produces roots when it touches the soil and is known as 'walking fern'.
Ploidy level of Nucellus, endosperm, polar nuclei , Megaspore mother cell, female gametophyte respectively are
Saffron is produced from
What is the similarity between gymnosperms and angiosperms ?
Which part of angiosperm is equivalent to the megasporophyll of Cycas ?
Which one of the following is the major difference between mosses and ferns ?
Which of the following statements is incorrect about Cycas ?
Which of the following pigments are found in brown algae ?
Which of the following is characteristic of ferns ?
Algmic acid is present in the cell wall of
Bentham and Hooker in their system of classification placed Family Leguminosae under
Bryophytes are called amphibians of plant kingdom because
Nonessential floral organs in a flower are
Which of the following is not a connective tissue?
In a CAM plant, the concentration of organic acid
The reservoir for the gaseous type of biogeochemical cycle exists in
Imbibition causes
Alternate name of Krebs' cycle is
Difference between virus and viroid is
Identified A, B, C and D.

Nissl's granules are found in cyton of nerve cells. These have affinity for basic dyes. The granules are made up of

Study the given figure of respiratory passage carefully and identify the parts labelled as $A$, $B$, $C$, $D$ and $E$.