Why is it helpful to know the temperatures at which bacteria grow?

Why is it helpful to know the temperatures at which bacteria grow?

Generally,an increase in temperature will increase enzyme activity. But if temperatures get too high, enzyme activity will diminish and the protein (the enzyme) will denature. Every bacterial species has specific growth temperature requirements which is largely determined by the temperature requirements of its enzymes.

Why are we particularly interested in microbes that prefer an extremely hypertonic environment?

Why are we particularly interested in microbes that prefer extremely hypertonic environments? Dehydration due to hypertonic environments will consistantly have a more damaging effect.

Why is environmental microbiology important?

Environmental microbiology is the study of the composition and physiology of microbial communities in the environment. Molecular biology has revolutionized the study of microorganisms in the environment and improved our understanding of the composition, phylogeny, and physiology of microbial communities.

What are those environmental conditions that may affect the life and growth of bacteria?

Warmth, moisture, pH levels and oxygen levels are the four big physical and chemical factors affecting microbial growth.

Which temperature would be most suitable for growing bacteria in industrial conditions?

The optimum temperature range for bacterial growth is between 5-63℃. This is known as the danger zone as it is dangerous for some foods to be in this temperature range for prolonged periods of time.

Does bacteria grow in acidic environment?

Most bacteria grow best around neutral pH values (6.5 – 7.0), but some thrive in very acid conditions and some can even tolerate a pH as low as 1.0. Such acid loving microbes are called acidophiles. Even though they can live in very acid environments, their internal pH is much closer to neutral values.

What does it mean when a cell is hypotonic to its environment?

If a cell is placed in a hypotonic solution, there will be a net flow of water into the cell, and the cell will gain volume. If the solute concentration outside the cell is lower than inside the cell, and the solutes cannot cross the membrane, then that solution is hypotonic to the cell.

Why are environmental factors to be considered when growing microorganisms?

The result effect of overlapping factors determines the possibility of the growth of certain microorganisms. The main factors affecting the growth are temperature, humidity, hydrogen ion concentration in the environment, oxidoreductive potential, water activity in the environment, and hydrostatic pressure.

How does environmental science be of benefits to microbiologist?

Environmental microbiologists examine microbes as they relate to the environment – their effects on the landscape and how they are affected by it. This will include the spread of viruses and bacteria, and the distribution of algae, fungi and parasitical organisms.

What do environmental microbiologist do?

Environmental microbiologists study how microorganisms interact with the environment and each other. They may study the use of microbes to clean up areas contaminated by heavy metals or study how microbes could aid crop growth.

What other environmental conditions that affect growth?

Environmental Factors affecting Microbial Growth

• Moisture.
• Oxygen.
• Carbon Dioxide.
• Temperature.
• pH.
• Light.
• Osmotic Effect.
• Mechanical and Sonic Stress.

How does temperature affect the pH of a sample?

A common oversight is when you take a sample from a process tank and make the pH measurement in the laboratory. At that time, you are probably not measuring pH at the same temperature as the temperature in the process tank, this means that you will not have the correct pH value for the sample.

What happens to proteins in cells when the temperature is too cold?

If too cold, cell proteins may be destroyed as ice forms, or as water is lost and electrolytes become concentrated in the cells; heat coagulates proteins (Lewis and Taylor, 1967). 2. Temperature and metabolism:

How does temperature affect the abundance of an organism?

Temperature determines which organisms will thrive and which will diminish in numbers and size. For each organism there is a thermal death point. Also there is a range of temperature of that produces optimal abundance. The effects of temperature upon life of a cold blooded or poikilotherm are profound.

How does the water temperature affect the growth of plants?

Temperature affects the photosynthetic rates of different algae. Plants are also affected by water temperature. While some aquatic plants tolerate cooler waters, most prefer warmer temperatures 17. Tropical plants in particular will show restricted growth and dormancy in water temperatures below 21°C 17.