The Major Difference Between Gram-Positive and Gram-Negative Bacteria Is That

question 18

Multiple Choice

The major difference between gram-positive and gram-negative bacteria is that:

• A)the peptidoglycan layer in gram-positive bacteria is substantially thinner than in gram-negative bacteria.
• B)gram-positive bacteria contain a periplasmic space,whereas gram-negative bacteria do not.
• C)flagella are only present in gram-positive bacteria.
• D)gram-negative bacteria contain an outer membrane that functions as the cell's initial barrier to the environment.

---

Definitions:

Dementia

A broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember.

Percent

A proportion or share in relation to a whole, represented as a part of one hundred.

Acetylcholine

A neurotransmitter in both the central and peripheral nervous system that plays an important role in muscle movement and cognitive processes.

Cognitive Decline

The gradual reduction in cognitive abilities, such as memory, thinking, and judgment, often associated with aging or neurological conditions.