Both lysosomes and vacuoles are endomembrane structures, yet they differ in terms of their functions. Comment.

Study following statements (P to R) and choose the correct alternative : P: Those organs which have the same internal structure but different functions are called homologous organs. Q: Organs which have different basic design but have similar appearance and carry out similar functions are called analogous organs. R: The impressions of dead plants or animals that lived in the past are known as fossils. a.Only R is true. b.All the three statements are true. c.Statements P and Q are true, but R is false. d.All the three statements are false.

A student performs an experiment on photoelectric effect,using two materials A and B.A plot V_("stop")vs v is given in figure. (i)Which material A or B has a higher work function? (ii)Given the electric charge of an electron =1.6xx10^(-19) C,find the value of the h obtained from the experiment for both A and B.Comment on whether it is consistent with Einstein's theory:

The organs which perform different functions but have the same basic structure are known a.Homologous organs b.Analogous organs c.Homolytic organ d.Analytic organ