- Do bacteria require oxygen to grow?
- What is the pH level of a banana?
- Which fruit has high pH value?
- What is the pH of stomach acid?
- What are the 4 conditions which allow bacteria to grow?
- What foods do not bacteria grow?
- Which food has the ideal pH for bacterial growth quizlet?
- Which type of food is best for bacterial growth?
- What prevents bacteria from growing on food?
- What are the two conditions for bacterial growth that you can control?
- What pH is best for bacterial growth?
- Which food has highest pH value?
Do bacteria require oxygen to grow?
Whereas essentially all eukaryotic organisms require oxygen to thrive, many species of bacteria can grow under anaerobic conditions.
Bacteria that require oxygen to grow are called obligate aerobic bacteria.
In fact, the presence of oxygen actually poisons some of their key enzymes.
Some bacteria (S..
What is the pH level of a banana?
4.5 – 4.7pH in common food products – like apples, butter, wines and more ..ProductApproximate pHArtichokes5.5 – 6.0Asparagus5.4 – 5.8Avocados6.3 – 6.6Bananas4.5 – 4.7105 more rows
Which fruit has high pH value?
Master List of pH of FoodsItemApproximate pHUpper rangeApricots, Canned3.40Apricots, Canned3.593.78Apricots, Dried, stewed3.413.51124 more rows
What is the pH of stomach acid?
The normal volume of the stomach fluid is 20 to 100 mL and the pH is acidic (1.5 to 3.5).
What are the 4 conditions which allow bacteria to grow?
ConditionsFFoodTTimeTTemperatureOOxygenMMoisture1 more row
What foods do not bacteria grow?
Explanation: Cooked food create an enabling environment for bacteria to grow because of their moisture content & of the normal temperature of the food. Raw food does not offer suitable conditions for bacteria growth. Hence, from the given options raw carrots does not support bacterial growth.
Which food has the ideal pH for bacterial growth quizlet?
Bacteria grow best in food that is neutral to slightly acidic (a pH of 7.5 to 4.6). Bacteria grows best in little or no acid.
Which type of food is best for bacterial growth?
TCS food, like dairy products, eggs, meat, and poultry support the growth of bacteria, hence ideal for bacterial growth. Other TCS food items are milk, shellfish, crustaceans, baked potatoes, sprouts, sliced melons, cut leafy vegetables, tofu, and fish.
What prevents bacteria from growing on food?
The best way to avoid bacterial growth on food is to follow proper food-handling instructions: Keep meat cold, wash your hands and any surface that comes in contact with raw meat, never place cooked meat on a platter that held raw meat, and cook food to safe internal temperatures.
What are the two conditions for bacterial growth that you can control?
Most bacteria grow best within certain ranges of temperature, and have specific requirements related to their need for air, the proper amount of water, acid and salt. By controlling nutrients, water, temperature and time, air, acidity, and salt, you can eliminate, control, or reduce the rate at which bacteria grow.
What pH is best for bacterial growth?
6.5 – 7.0Most 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.
Which food has highest pH value?
Fruits and fruit juices high in acidlemon juice (pH: 2.00–2.60)limes (pH: 2.00–2.80)blue plums (pH: 2.80–3.40)grapes (pH: 2.90–3.82)pomegranates (pH: 2.93–3.20)grapefruits (pH: 3.00–3.75)blueberries (pH: 3.12–3.33)pineapples (pH: 3.20–4.00)More items…