Cell Biology - Questions and Answers for Competitive Exams | GkSeries

1. Which one of the following is prokaryote.

• [A] lower animals
• [B] higher plants
• [C] higher animals
• [D] bacteria and archaea

Answer: Option [D]

2. The study of the spread of disease called as ________.

• [A] etiology
• [B] population genetics
• [C] phytopathology
• [D] pathology

Answer: Option [D]

3. Single celled and multicellular microscopic organisms with true nuclei that absorb nutrients from their environment are __________.

• [A] fungi
• [B] viruses
• [C] algae
• [D] bacteria

Answer: Option [A]

4. An Italian physician who demonstrated that maggots arise from fly eggs and not rotten meats was _______.

• [A] Louis Pastuer
• [B] Robert Koch
• [C] Redi
• [D] Edward Jenner

Answer: Option [C]

5. Periplasmic space is found ________.

• [A] in between cell wall and cell membrane
• [B] below cell membrane
• [C] within outer membrane
• [D] in between outer membrane and peptidoglycan

Answer: Option [D]

6. Killing effect of dry heat is due to

• [A] protein denaturation
• [B] elevated levels of electrolysis
• [C] oxidative damage
• [D] all the above

Answer: Option [D]

7. Bacteria can be measured in metric units called ________.

• [A] millimeters
• [B] micrometers
• [C] nanometers
• [D] picometers

Answer: Option [B]

8. Viruses should be measured in metric units called _________.

• [A] millimeters
• [B] micrometers
• [C] nanometers
• [D] picometers

Answer: Option [C]

9. Which one of the following is a selective medium?

• [A] Mac Conkey agar
• [B] Blood agar
• [C] Nutrient agar
• [D] Mineral agar

Answer: Option [A]

10.In microscopy, the thickness of a specimen that is in focus at any one time is called _____.

• [A] depth of field
• [B] diameter
• [C] wavelength
• [D] velocity

Answer: Option [A]

11. Organisms that lack a defined nucleus would be called _______.

• [A] prokaryotic
• [B] eukaryotic
• [C] plant cell.
• [D] animal cell.

Answer: Option [A]

12. A tough, interlinked component of the cell wall of bacteria that provides rigidity is the ________

• [A] capsule
• [B] peptidoglycan
• [C] cell membrane.
• [D] cell wall

Answer: Option [B]