Microbiology Module 2 quiz PDF

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Microbiology Module 2 quiz...

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1. Compare the thickness of peptidoglycan of Gram-positives from Gram-negatives a. Peptidoglycan of Gram-positives is thicker than peptidoglycan of Gram-negatives 2. Differentiate flagellum of Gram-negative bacteria from flagellum of Gram-positive bacteria? a. A Gram-positive flagellum has only two rings in its basal body; Gram-negatives each have four 3. Which of the following substances is present only in Gram positive cell walls? a. teichoic acid 4. Growth occurs in all except in ________. a. Viruses 5. Tumbles occur when the flagella ________. a. Rotate clockwise 6. Differentiate diffusion from facilitated diffusion. a. Diffusion does not need transport protein while facilitated diffusion needs transport protein 7. What domain/s composed the prokaryotes? a. Domains Bacteria and Archaea 8. Match the processes with their description a. Question

Correct Match

Growth

B. increase in size

Reproductio n

E. increase in number

Responsiven ess

D. ability to react to stimuli

Metabolism

A. chemical reactions of organisms

9. How many endospore/s will be formed from one vegetative cell? Your answer must be numeric only such as 2. a. Answer: 1 10.In hypertonic solution, water moves (outside or inside) the cell because the concentration of solutes in hypertonic solution is (higher or lower) than the concentration of solutes inside the cell. a. Outside; higher 11. The diffusion of water molecules across a plasma membrane is called ________. It is a one-word answer and spelling matters. a. Osmosis

12. Match the structures in bacteria to their functions.

● Question

Correct Match

Flagella

A. for movement

Fimbriae

F. for attachment

Inclusions

C. for storage of substances

Plasma membrane

B. ATP production

Endospore

D. for survival

13. What connects layers of peptidoglycan to each other? It is a one-word answer and spelling matt a. Tetrapeptide 14. Which of the following transport process need ATP? a. Active transport 15. DNA in bacteria is located in the region called ________. It is a one-word answer and spelling matters. a. Nucleoid 16. Which statements are true about pilus? a. It is shorter than flagellum b. It is longer than fimbriae c. Only one or two are present per cell 17. What are the functions of glycocalyx? a. Proteccts the cells from the body’s defensive cells b. Protects the cells from dessication c. Attachment cells to each other and to the environment

18.Match the parts to their functions a. Question

Correct Match

Ribosomes

A. for protein synthesis

Nucleus

B. contains the cell’s genetic instructions (DNA)

Endoplasmic reticulum (smooth and rough)

C. for transport of substances within the cell

Golgi bodies

D. receives, processes and packages large molecules for export

19. What mainly composed bacterial cell walls? It is a one-word answer and spelling matters a. Peptidoglycan...