Food Storage and Preservation

Q.

When Some wheat dough was left in the open for a few days it started emitting a foul smell. State why?

Q. Which of the following gas is used in food preservation?

1. Nitrogen
2. Oxygen
3. Argon
4. Helium

Q.

Substances that are generally used to inhibit the growth of microorganisms in food are called __.

Q. Vinegar and sodium acetate are natural preservatives.

1. True
2. False

Q.

Give one example of an edible acid and discuss its uses.

Q.

Wheat dough if left in the open, it start to emit foul smell and became unfit for use. Give reasons.

Q. The substances added to food items to preserve them for a long time are called ___.

Q.

Food preservatives are used to keep food edible for a longer period of time.

1. True

2. False

Q.

Which among the following is not a natural preservative?

1. Sodium chloride

2. Sodium benzoate

3. Oil

4. Vinegar

Q.

Why are the wounds on the body washed with salt solution?

1. To prevent entry of microorganisms.

2. For quickening blood clotting.

3. To kill microorganisms.

4. To relieve the pain.

Q.

What does bee sting contain?

Q. Which among the following is not a modern method of preservation ?

1. 
   Salting
2. 
   Pasteurisation
3. 
   Drying
4. 
   Vacuum packing

Q. Sharath's grandmother always milk the cows and boils it before serving. But in an icecream parlour, he found that packaged milk is being directly used to make milk shakes. Justify the action of parlour guy.

1. \N
2. Storing in Packets
3. Boiling
4. Cooling

Q. Which among the following statements are associated with the process of food preservation?

1. Decreased shelf life.
2. Air-tight sealing.
3. Storage for future use.
4. Prevention of decay or spoilage.

Q.

The Food Safety and Standard Act was passed by Indian parliament in

1. 2005

2. 2006

3. 2007

4. 2008

Q. Apples are generally wrapped in waxed paper to

1. Prevent sunlight from changing its colour
2. Prevent aerobic respiration by checking the entry of oxygen
3. Prevent ethylene formation that hastens ripening
4. Make the apples look costly

Q.

What is climacteric condition in fruit development?

1. Respiration goes up during fruit ripening

2. Ethylene production goes up during fruit ripening

3. Both respiration and ethylene production goes up during fruit ripening

4. None of the choices

Q.

What does the following symbol on a packaged food represent?

1. Poisonous

2. Vegetarian

3. Non-vegetarian

4. Adulterated

Q. Materials like milk are instantly cooled after heating up to a certain high temperature. This method of food preservation is called ____________.

1. pasteurisation
2. centrifugation
3. coagulation
4. dehydration

Q. Statement 2: Water helps in removal of wastes from the body.
Statement 3: Our body gets water from the water we drink, milk, tea, etc.
Statement 4: Water helps our body to absorb nutrient.

1. 1, 2, 3 and 4 are correct

2. 2, 3 and 4 are correct

3. Only 1 and 3 are correct

4. Only 1 is correct

Q. Identify the preservative(s) not used in food preservation.

1. Oil
2. Water
3. Sodium benzoate
4. Potassium sulphate

Q.

Raju's mother washed the fish and put it in the sun. After some time he observed decreased water content in those fishes. Which among the following method was the cause of this phenomenon?

1. Drying

2. Canning

3. Pickling

4. Salting

Q. A common preservatives used in jam and pickles is

1. Sodium benzoate
2. Nitric acid
3. Sodium chloride
4. Copper sulphate

Q.

If the cut is small, wash it with plenty of _________.

Q. Mercury is used in the experiment of anaerobic respiration to ensure that:

1. Water vapour is absorbed
2. Oxygen does not reach the seeds
3. Seeds remain moist
4. Carbon dioxide is not released out of the tube

Q. Vinegar used as preservative for pickles, is _____ % aqueous solution of acetic acid.

1. 25 to 30
2. 100
3. 1 to 2
4. 5 to 8

Q. The substances added to food items to preserve them for a long time are called ___.

Q. Food preservatives fasten the process of food spoilage.

1. False
2. True

Q. Materials like milk are instantly cooled after heating up to a certain high temperature. This method of food preservation is called ……….. .

Q. Identify the food preservatives.

1. Dry salt
2. Sugar
3. Ketchup
4. Vinegar
5. Oil
6. Water
7. Brine
8. Yeast