Cell Biology - Questions and Answers for Competitive Exams | GkSeries

13. An antibiotic that affects the formation of the cell wall is ________

• [A] penicillin
• [B] ampicillin
• [C] tetracyclin
• [D] streptomycin

Answer: Option [A]

14. Accumulations of polyphosphate volutin granules with cytoplasm of bacteria are called ____.

• [A] metachromatic
• [B] monochromatic
• [C] minichromatic
• [D] macrochromatic

Answer: Option [A]

15. Members of the genus Bacillus and Clostridium produce resistant structures called _______.

• [A] spores
• [B] endospores
• [C] capsular structure
• [D] inclusion bodies

Answer: Option [B]

16. Any substances containing polysaccharides found external to the cell wall is known the _______.

• [A] lipid
• [B] protein
• [C] glycocalyx
• [D] peptidoglycon

Answer: Option [C]

17. A eukaryotic organelle which contains digestive enzymes is a ______.

• [A] lysosome
• [B] mitochondria
• [C] chloroplast
• [D] golgi complex

Answer: Option [A]

18. _______ that form into long chains may be identified by the prefix

• [A] Streptococci
• [B] Staphylococci
• [C] Diplococci
• [D] Micrococci

Answer: Option [A]

19. If bacteria could divide together and have the exact same generation time they could exhibit _____

• [A] continous
• [B] fed batch
• [C] batch
• [D] synchronous

Answer: Option [D]

20. A toxic component of the outer layer of Gram negative bacteria is ________.

• [A] lipid A
• [B] protein A.
• [C] lipid B.
• [D] lipid C.

Answer: Option [A]

21. ________ organism can tolerate one environmental condition but still live in another

• [A] aerobes
• [B] anaerobes
• [C] facultative
• [D] endospores producing microbes

Answer: Option [C]

22. When cells lose water and their membranes shrink away from the cell wall indicates that they are undergoing ________.

• [A] lysis
• [B] plasmolysis
• [C] lysogenic
• [D] caryolysis

Answer: Option [D]

23. The processes of endospore formation is known as ________.

• [A] sporulation
• [B] germination
• [C] propagation
• [D] binary fission

Answer: Option [A]

24. A culture medium which contains known specific kinds and amounts of chemicals is a _______

• [A] Liquid
• [B] solid
• [C] selective
• [D] defined synthetic

Answer: Option [D]