Question

based on what you understood from the video, which of the following statements are correct?
select all that apply.

a. this image likely depicts a gram-stained bacterial smear.
b. this image shows a cell morphology of bacilli.
c. this image shows a cell arrangement of streptococci.
d. this image shows a cell arrangement of staphylococci.
e. this image shows a cell morphology of cocci.
f. this image suggests the gram stain was done incorrectly.

Explanation:

Analyze cell morphology and arrangement

The image shows spherical-shaped bacterial cells, which corresponds to a morphology of cocci. These spherical cells are arranged in long, bead-like chains, which is the characteristic arrangement of streptococci.

Evaluate staining and preparation

The purple/violet color of the cells indicates a Gram-positive reaction, which is typical of a Gram-stained bacterial smear. There are no signs of staining errors (such as uneven decolorization or crystal violet precipitation) that would suggest the Gram stain was done incorrectly.

Determine correct statements

• A is correct: It depicts a Gram-stained bacterial smear.
• C is correct: The arrangement is streptococci (chains of cocci).
• E is correct: The morphology is cocci (spherical cells).
• B, D, and F are incorrect based on the visual evidence.

Answer:

• A. This image likely depicts a Gram-stained bacterial smear. (Correct answer)
• B. This image shows a cell morphology of bacilli.
• C. This image shows a cell arrangement of streptococci. (Correct answer)
• D. This image shows a cell arrangement of staphylococci.
• E. This image shows a cell morphology of cocci. (Correct answer)
• F. This image suggests the Gram stain was done incorrectly.