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.
Answer:
10. 50 ehaisnenhsiwolen br isiwokneb
Organisms are composed of cells, they use energy, they grow, and they can reproduce and also living things adapt to their enviorment.
Viruses do not grow, and they cannot reproduce independently. They use host cells to reproduce.
Answer:
Bacteria.
Explanation:
CRISPR (clustered regularly interspaced short palindromic repeats) are the DNA sequences and Cas9 (CRISPR-associated protein 9) is an enzyme used to identify the CRISPR sequence.
The genetic engineer has discovered gene sequence and isolated from the same organism as CRISPR-Cas9. The organism have been isolated from the bacteria as the CRISPR sequence is present in the genomes of prokaryotes especially bacteria.
Thus, the answer is bacteria.
Answer:
Here u go ;)
Explanation:
Livestock :- animals that are kept for the goods they offer and that can be sold for profit
Overharvesting :- catching or removing from a population more organisms than the population can replace
Aquaculture :- involves raising aquatic organisms for human use
Drought :- lack of water in an area causing crops to die
Famine :- the social and economic crisis in a given area that is commonly characterized by widespread malnutrition, starvation, etc.
Malnutrition :- when an organism does not consume enough nutrients needed to fulfill the body's needs
Diet :- The type and amount of food a person eats
Pesticides :- Chemicals that protect crops from harmful plants and insects
Carbohydrates :- Primary source of energy for the body
Erosion :- the wearing away of soil by wind and water
