Questions

RNA is a polymeric molecule. What does RNA stand for?

By which process substance like carbon dioxide or oxygen can move across the cell membrane?

In which of the following solution the concentration of H+ ion is the maximum?

In the following questions, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Literature is a _____ through which a person conveys his ideas towards or protest _____ different norms of society. The words that deal with a _____ issue are of particular importance in literature. They are _____ with a particular purpose in _____.

of society. The words that deal with a _____ issue

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- They never desert us even when all fair weather friends have deserted us.
Q- Books are never failing friends.
R- They dispel the dark clouds of gloom from our minds and increase our happiness if we are already happy.
S- Through the ages, the scriptures and other great books have provided, immeasurable solace to the wounded and strife torn humanity.

Which of the following is not true about Pteridophyta?

Which cells give rise to various organs of the plant and keep the plant growing?

Most of population in Sri Lanka follows ___________.