Card 0 of 3
What polymer is commonly found in the cell walls of fungi?
Although cell walls often serve very similar functions for different species, the composition of the cell walls can vary significantly. Plant cell walls employ cellulose, while bacteria use peptidoglycan. Fungal cell walls use the polymer chitin.
Compare your answer with the correct one above
In bacteria, what is the polymer that makes up the cell wall?
The correct answer is peptidoglycan. Cellulose composes the cell walls of plants, whereas chitin composes the cell walls of fungi. Starch and glycogen are stored polymers of glucose in plants and animals, respectively.
Compare your answer with the correct one above
Which statement correctly describes a Gram-positive bacterial cell?
A Gram-positive cell has the following basic structural characteristics: stains dark purple in the Gram stain, has a thick peptidoglycan layer, and possesses no outer membrane beyond this layer. Thus, there is also no periplasmic space. Acid-fast stains are only used for specific bacteria that have waxy cell walls.
Compare your answer with the correct one above