List of top Biology Questions asked in KEAM

Specialized cells called heterocysts are present in:
In the diagram given above, some of the algae have been labelled as a, b, c, d and e. These algae are respectively identified as :
Exponential growth in plants can 'be expressed as :
The nuclear structure observed by Henkings in 50% of the insect sperm after spermatogenesis was
Which of the following gymnosperms is a bushy trailing shrub ?
A cell divides every minute. At this rate of division it can fill a 100 ml. of beaker in one hour. How much time does it take to fill a 50 ml beaker ?
In a typical eukaryotic cell cycle, Gap 1, Synthesis and Gap 2 are the three phases included in the
A child of blood group O cannot have parents of blood groups
6-furfuryl amino purine, 2 ,4-dichlorophenoxy acetic acid and indole-3 acetic acid are examples respectively for
A cybrid is a hybrid carrying
0ne hormone helps in ripening of fruits while the other stimulates closure of stomata.- These are respectively
$- 1^{\circ} C$ to $13^{\circ} C$ annual variations in the intensity and duration of temperature and $50$ to $250\, cm$. annual variation in precipitation, account for the formation of a major biome as:

Consider the following statements with respect to respiration.

(i) Glycolysis occurs in the cytoplasm of the cell. 

(ii) Aerobic respiration takes place within the mitochondria. 

(iii) Electron transport system is present in the outer mitochondrial membrane. 

(iv) \(C_{51}H_{98}O_6\) is the chemical formula of tripalmitin, a fatty acid. 

(v) Respiratory quotient= \(\frac{volume \,of o_2\, evolved}{volume \,of\, o_2 \,consumed}\) Of the above statements

Find the wrongly matched pair
Pathogenecity of bacteria causing tuberculosis and leprosy is due to
In one plant adventitious roots are modified for storage and in the other plant a lateral branch with short intemodes and each node bearing a rosette of leaves and a tuft of roots is found. They are
The main mineralocorticoid in human is
The pigments phycoyanin and phycoerythrin are present in
The bacterial cell wall is made up of
The diagram represents the life cycle pattern of an angiosperm. Choose the correct combination of labelling numbered as 1 to 5.
Consider the following statements regarding gymosperms and choose the correct option (a) In gymnosperms, the male and female gametophytes have an independent existence (b) The multicellular female gametophyte is retained within megasporangium (c) The gymnosperms are heterosporous. Of these statements:
Choose the correct order of colours with respect to pigments ? chlorophyll, phycoerythrin and fucoxanthin
Which of the following is a phaeophycean alga ?
Identify the alga which exhibits diplontic life cycle
The heterosporous pteridophyte belonging to the class lycopsida is