Most bacteria live in a solution that is hypotonic relative to the cytoplasm of the bacteria. This means that the bacterial cell is constantly taking in water. The cell wall of a bacterium is a peptidoglycan polymer that is tightly cross-linked. This would therefore function to:_________-.
A. regulate the flow of most molecules into and out of the bacterial cell.
B. provide a rigid wall that prevents the cell from swelling.
C. provide a rigid wall that prevents the cell from shrinking.
D. confirm a close relationship to plant cells that have a similar structure and live in hypotonic solutions.
E. make all bacteria fairly uniform in metabolic chemistry.
Answer:
B. provide a rigid wall that prevents the cell from swelling.
Explanation:
When organisms are present in hypotonic surroundings, their cells that are in contact with the surroundings tend to gain water. Bacteria present in hypotonic solution would gain water as their cells are hypertonic than the surroundings. The entry of water would increase the volume of cytoplasm and could lead to the bursting of the cell. However, the presence of a cell wall made up of cross-linked peptidoglycan prevents the swelling of the bacterial cell and allow them to survive in hypotonic surroundings.
The correct answer is: A) pontine respiratory centers
The respiratory centre in the pons is responsible for generating and maintaining the rhythm of respiration. Besides this elementary function, it also has the ability to adjust respiration rhythm in c response to physiological changes. Respiratory centre consists of three major respiratory groups of neurons:
• The dorsal respiratory group (DRG)- initiates inspiration (inhalation)
• the ventral respiratory group (VRG)-responsible for exhalation
• Pontine respiratory group- includes the pneumotaxic (controls both the rate and the pattern of breathing) and apneustic centers (promotes inhalation by sending signals to dorsal group).
Answer:
yes it uses energy to reproduce inside a host cell
Explanation:
Answer:
Based on the facts, there is no legal claim he can create against the accounting firm
Explanation:
While it is true that Alonzo had received and accepted a formal proposal by the accounting firm in Los Angeles, it only becomes valid and binding when the contract with the company is signed. Therefore, any event that occurs between the acceptance of the proposal and the signing of the contract does not generate liability in either party. Unfortunately for Alonzo, there's no potential claim agains the accounting firm that he can do.
Plants have 98% of the elements found in humans. But for some characteristics they are classified in the biological kingdom Plantae. They multicellular being with limited motility and most importantly, they are able to manufacture their own food. They are essential for the existence of life in this planet and this is why Dr. Maria can see a soul in them. This is a beautiful way to look at these living being, to give them a living soul.
