Answer:
Gram negative bacteria don't retain purple color as they contain thin cell wall which is composed of peptidoglycans present between inner cytoplasmic cell membrane and bacterial outer membrane.
Explanation:
They contain some characters like-
- The outer membrane is important as it protects them from antibiotics,detergents that damages the peptidoglycans of cell membrane.
- The outer membrane is composed of lipopolysaccharide that secrets lipid A component which causes toxic reaction.
- This toxic reaction creates different health hazards like high fever,increase respiratory rate,low blood pressure etc.
- Braun's lipoprotein present between outer membrane and peptidoglycans by a covalent bond.
Answer:
Thoracic cavity
Explanation:
The definition for pleural cavity is: The space enclosed by the pleura, which is a thin layer of tissue that covers the lungs and lines the interior wall of the chest cavity.
Chest cavity or thoracic cavity is the space enclosed by the ribs, the vertebral column, sternum and is separated from the abdominal cavity (the body’s largest hollow space) by a muscular and membranous partition, the diaphragm.
The mantle is very hot. Thickness is 2885km.
