Microbiology quizQuiz uda Jaber Attempt 2 1 Which of the fol

Microbiology quiz-Quiz uda Jaber: Attempt 2 1. Which of the following has peptidoglycan in its cell wall O a) A protist b) A plant c) An animal d) A member of the archaea e) None of the above Save Previous Page Next Page Pa

Solution

Answer:

1. (e) None of the above

Protists have cell wall made up of cellulose or similar polymers. Plant cell walls are composed of cellulose, hemicellulose and pectin. Animal cells lack a cell wall. Unlike bacteria, archaea lack peptidoglycan in their cell walls, although some members of archea may contain pseudopeptidogylcan.

Bacterial cells (Kingdom Monera) have peptidoglycan in their cell walls.

2. (d) Cytoplasmic membranes

Prokaryotic cells lack membrane bound organelles including membrane bound nucleus.

3. (c) Plant cells

Plant cells are eukaryotic cells which has membrane bound organelles and well developed membrane bound nucleus. Archea and bacterial cells belong to prokaryotes with no true nucleus. Thus nuclear membrane is absent.