Reading Comprehension 73

Similar Readings

Practice of Medicine
Cold and Flu

Answer the questions according to the reading

What is a Virus Made Of

All viruses are made up of two kinds of substance. First, all viruses contain proteins. Proteins are chemical substances that occur in all living creatures. A particle, or molecule, of a protein consists of a long chain of substances called amino acids. There are about 20 different kinds of amino acid in proteins. These can be arranged in any order on the protein chain. Different kinds of plant or animal contain proteins with different arrangements of amino acids. The protein generally forms the outer coat of a virus. This outer layer of protein encloses the second kind of substance found in all viruses - nucleic acid.

1. It is clear from the passage that ----.

A) proteins are greatly damaged by viruses
B) the amount of proteins differs in each animal or plant
C) few proteins are without amino acids
D) it is impossible to find a living thing with no proteins
E) a virus's resistance depends on the amount of proteins it contains

2. The arrangement of amino acids ----.

A) is very simple in the proteins of the viruses
B) is determined by the kinds of proteins
C) can be harmed if too many viruses confront the proteins
D) has nothing to do with proteins
E) varies among each living thing

3. The second substance of the viruses ----.

A) consists of only amino acids
B) is usually the part covered by proteins
C) protects it from outer effects
D) must contain at least 20 amino acids
E) is not as essential as the first one

Score =
Correct answers:
<-- Go to the top of the page -->
ESL Challenge
Grammar and Vocab Challenge

Winners Cup Learn while challenging others
Get listed on the leaderboard
Get e-books/mobile apps
Grammar Challenge
ESL Quiz Apps
GrammarBank Mobile Quizzes

Mobile TabletsESL Vocabulary and Grammar
Apps for mobile and tablets
Learn on the go!
Beginners Grammar Quiz App

Recently Added

  1. Reported Speech Examples - GrammarBank

    Both direct speech and reported speech forms of the same sentences to practice-- Try converting from direct to indirect speech.

    Read More

  2. Reported Speech Examples 2 - GrammarBank

    Reported speech complex sentence examples to practice-- See both direct speech and indirect speech forms of the same sentences

    Read More

  3. Reported Speech Yes/No Questions

    Reported speech questions with Yes/No questions exercise - Convert Yes/No questions into indirect speech statements

    Read More