Prokaryotes – Online MCQs Test – Biology MCAT

1. Cyano bacteria contain:

2. In mammals, some carbon dioxide is transported by red blood cells in combination with hemoglobin. What is the product of this combination?

3. ‘SPIROCHETES’ are grouped as:

4. Circular, double stranded DNA molecule present in bacterial cell represents:

5. Which one of the following organisms may respire in the absence of oxygen

6. Protoplasm in cyano bacteria is differentiated into an outer colored region called:

7. Bacteria and other moneras do not possess

8. Introduction of vaccine within the body to produce immunity is an example of

9. Bacteria which require low concentration of oxygen for growth are known as:

10. The bacteria are:

11. Penicillin antibiotic which effects bacterial

12. Phototactic bacteria moving towards or away from:

13. Structure present in cyano bacteria is:

14. Bacterial flagella is made up of

15. Bacteria that grow inside the tissues of other living organisms and obtain food at the expense of host are:

16. One of the major components of bacterial cell wall is a polymer called

17. Why the food can be kept for a longer time in cold house than in normal conditions?

18. All of the following are blood clots except

19. A molecule of haemoglobin contains four haem groups. The haem groups contain iron atoms which can bond reversibly with oxygen. How many oxygen atoms can be carried by one haemoglobin molecule?

20. Some bacteria are not easily killed because of