MCQ General Microbiology 11.
The average radius of the prokaryotic cells is:a. 0.5-2.0 μmb. 1.0-4.0 μmc. 1.0-10.0 μmd. 5.0-10.0 μme. 10.0-30.0 μm
MCQ General Microbiology 12.
While viewing the soil sample under the light microscope you will notice a rod-shaped cell devoid of a nucleus. The only correct assumption that can be made of the cell thus far is that:a. It is a eukaryoteb. It is gram-positivec. It contains peptidoglycand. It contains mitochondriae. It is part of multicellular microorganisms
MCQ General Microbiology 13
Which of the following is likely to contain structures composed of N-acetylmuramic acid and N-acetylglucosamine:a. Spheroplastsb. Mycoplasmasc. Escherichia colid. Protoplastse. Amoebas
MCQ General Microbiology 14
The association of endotoxin in Gram-negative bacteria is a result of the presence of:a. Peptidoglycanb. Lipopolysaccharidec. Polypeptided. Steroidse. Calcified proteins
MCQ General Microbiology 15
The reason that bacterial cells are more resistant to osmotic shock than are eukaryotic cells is that they:a. Contain a cell wall composed of celluloseb. Contain Osmo- regulating porinsc. Actively block water molecules from entering the celld. Are selectively permeablee. Contain a cell wall composed of peptidoglycan
MCQ General Microbiology 16
Which of the following describes prokaryotic cellmembrane?a. Selectively permeableb. Regulates passage of materials into and out of the cellc. Contains proteins and phospholipidsd. Contains metabolic enzymese. All of these
MCQ General Microbiology 17
Bacterial fimbriae present on the outer cell surface are used for:a. cellular activityb. sexual reproductionc. cell wall synthesisd. adherence to surfacese. adherence, and exchange of genetic information.
MCQ General Microbiology 18
The use of antibiotics that inhibit or inactivate cellular ribosomes will result directly in the loss of which of the following functions:a. ATP productionb. DNA replicationc. Phagocytosisd.Protein synthesise. Cell division
MCQ General Microbiology 19
Chloroplasts are organelle that actively carries out photosynthesis. Which of the following is NOT a characteristic of them?a. Are found in plant and algal cellsb. Contain the pigment chlorophyllc. Are membrane-enclosedd. Are found in photosynthetic prokaryotic cellse. Are found only in eukaryotic cells
MCQ General Microbiology 20
Which of the following is true of phagocytosis?a. Is not energy-dependentb. Requires concentration gradientc. Occurs in prokaryotic and eukaryotic cellsd. None of the abovee. A larger cell engulfs a smaller cell that will eventually be present in an internal vacuole.
MCQ General Microbiology 21
All of the following pertain to mitosis EXCEPT:a. new cells receive one copy of each parent cell chromosomeb. Preceded by DNA replicationc. Results in gamete productiond. Spindle apparatus guides chromosome movemente. Process of nuclear division.
Answer key of MCQs General Microbiology11. (b)1.0-4.0 μm12.(c)It contains peptidoglycan13.(c)Escherichia coli14.(b) Lipopolysaccharide15.(e) Contain a cell wall composed of peptidoglycan16. (c) It contains proteins and phospholipids17. (d) adherence to surfaces18. (d) Protein synthesis19. (d) are found in photosynthetic prokaryotic cells20. (e) A larger cell engulfs a smaller cell that will eventually be in an internal vacuole.21. (c) Results in gamete production.