Food Preservation and Storage

Q.

How does chemistry help us in the preservation of food?

Q. Making different types of designs and decorations with vegetables is called _______.

1. vegetable decoration
2. vegetable carving
3. vegetable art
4. vegetable designing

Q. Sugar can be used as a preservative.

1. True
2. False

Q. Which method of preserving fish is shown in the image?

1. Salting
2. Canning
3. Hanging
4. Drying

Q. Which of the following is not used as preservative?

1. Sugar
2. Salt
3. Sauce
4. Vinegar

Q.

Question 6

Read each set of terms and identify the odd set.

(a) Cow, milk, butter

(b) Hen, meat , egg

(c) Goat, milk, meat

(d) Plant, vegetable, butter, milk

Q. Making pickles is a form of food preservation.

1. True
2. False

Q.

Biscuit and breads are preserved by _______.

1. Air-tight packing

2. Pasteurisation

3. Heating

4. Freezing

Q. Rina added some substances in her pickle before filling it in the container so that it doesn't get spoiled. What could be the substances?

1. Vinegar
2. Water
3. Salt
4. Turmeric

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

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

Q.

Why do you think food remains fresh for a long period in a refrigerator?

Q. Food preservation is used _____________.

1. to improve taste of the food
2. to prevent the growth of microorganisms
3. to add adulterants
4. to remove fat content of the food

Q.

Give a reason for the following:

Preservatives are added to food or beverages.

Q. Arun has two jars, one containing salt solution (Jar A) and the other containing sugar solution (Jar B). Help him place the following food items in proper jars for preservation.
Fish, meat, cherries, dates, raw mangoes

1. Jar A: Fish, raw mangoes, dates
   Jar B: Meat, cherries
2. Jar A: Meat, cherries
   Jar B: Fish, raw mangoes, dates
3. Jar A: Fish, meat, raw mangoes
   Jar B: Dates, cherries
4. Jar A: Dates, cherries
   Jar B: Fish, meat, raw mangoes

Q. Boiling and refrigeration prevent microbial growth.

1. True
2. False

Q. Keeping leftover food at room temperature prevents food spoilage.

1. True
2. False

Q.

State the ways in which nutrients in food can be preserved

Q.

Choose the correct type(s) of preservation which is/are based on the principle of osmosis.

1. Preservation in salt solution

2. Preservation in vinegar

3. Preservation in sugar solution

4. Preservation in oil

Q. Lactic acid is a natural preservative.

1. True
2. False

Q. How do mosquitoes locate human beings to bite?

1. They have sharp eyes
2. None of the above
3. They use sound to locate humans
4. They use their sense of smell

Q.

28. Choose the correct alternative from the choices given below for the following statements :
Which one of the following is a pesticide?

1. benzoic acid

2. aldrin

3. sugar

4. gunpowder

Q.

Question 6

Read each set of terms and identify the odd set.

(a) Cow, milk, butter

(b) Hen, meat , egg

(c) Goat, milk, meat

(d) Plant, vegetable, butter, milk

Q. I am a vegetable.
I have excellent antioxidant, anti-allergic, antiviral and antihistamine properties.
Identify me.

1. Tomato
2. Pumpkin
3. Beetroot
4. Onions

Q. Cooking food helps in killing the microorganisms present in it.

1. True
2. False

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

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

Q. Refrigeration inhibits microbial growth in food items.

1. False
2. True

Q. Pickling is the process of preserving food items in salt solution.

1. False
2. True