HUMAN NUTRITION

NUTRITION

FOOD SAFETY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are ALL the conditions of growth required for bacteria grow?
A
Low acidity, oxygen, high temperatures, dryness and food
B
Food, proper acidity, time, proper temperature, oxygen and moisture
C
Food, moisture, acidic conditions and oxygen
D
Oxygen, temperature, time and moisture
Explanation: 

Detailed explanation-1: -Bacteria can live in hotter and colder temperatures than humans, but they do best in a warm, moist, protein-rich environment that is pH neutral or slightly acidic. There are exceptions, however. Some bacteria thrive in extreme heat or cold, while others can survive under highly acidic or extremely salty conditions.

Detailed explanation-2: -Bacteria are generally neutrophiles. They grow best at neutral pH close to 7.0. Acidophiles grow optimally at a pH near 3.0. Alkaliphiles are organisms that grow optimally between a pH of 8 and 10.5.

Detailed explanation-3: -For growth and nutrition of bacteria, the minimum nutritional requirements are water, a source of carbon, a source of nitrogen and some inorganic salts. Water is the vehicle of entry of all nutrients into the cell and for the elimination of waste products.

Detailed explanation-4: -They are unicellular organisms. They are one of the very first organisms to evolve on earth. They are prokaryotes and can grow aerobically or anaerobically (absence of oxygen).

There is 1 question to complete.