Answer:
a ) bacteriostatic agent
Explanation:
An agent that inhibits the growth of bacteria is called a bacteriostatic agent. They don't kill the bacterial only reduce their multiplication rate.
This agent is used to control microbial growth. It is necessary for the food industry, agriculture and human life. There are two methods to inhibit the growth of bacteria - 1) killing the bacteria and 2) inhibiting their growth without killing.
The agents are used for controlling microbial growth may be physical and chemical. The agents used for killing the bacteria is called cidal agent and known as bacteriocides.
The agent which inhibits the growth of bacteria without killing them is called bacteriostatic agent/static agent.
e.g. of bacteriostatic are - sulphonamides, tetracyclines, Erythromycin, etc.
Two substances in the body that will move based on the principle of diffusion are CARBON DIOXIDE AND OXYGEN.
Diffusion is the process by which molecules of a substance move from the region of higher concentration to the region of lower concentration. Carbon dioxide and oxygen can easily move in an out of the cell via diffusion.<span />
Answer:
Hmmm.....firstly it depends which grade ur in....well in general I am ready
The appropriate response is biochemistry. Eduard Buchner showed that aging can be achieved utilizing dead chemicals as opposed to living yeast. He built up that biochemical responses are conceivable outside living cells. He was awarded a Nobel Prize in the year 1907 for his discovery on fermentation.