Answer:
In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins. This statement accurately describes specific bacterial cell walls.
Explanation:
The Gram- negative bacteria constitute of an outer membrane which is richly made up of lipopolysaccharides, phopholipids and proteins. The lipopolysaccharides function mainly as a virulence factor and are involved in causing variety of diseases in animals.
Gram- negative bacteria can be seperated from gram- positive bacteria mainly because of the thickness of peptidoglycan and by the presence of the outer membrane of Gram- negative bacteria. The outer membrane is absent in Gram- positive bacteria.
Answer:
A. The scientist should restart the experiment at a step prior to
contamination.
Explanation:
The epidermis, or top layer of your skin may be damaged. The epidermis is made up of mostly dead skin cells to protect your body from small scrapes. If the cut is deep enough ot might affect the dermis, or lower layer of the skin that contains nerves and fat to warm your body.
Hope this helps! ; )
