"Raw Food and Cooked Food" Food PPT

Description

"Raw Food and Cooked Food" Food PPT

Part One: Importing New Knowledge

A reasonable food mix can ensure that we get balanced nutrition, and different ways of eating food will affect our absorption of nutrients.

What is the difference between raw food and cooked food? How to eat different foods reasonably?

Raw food and cooked food PPT, part 2: new knowledge explanation

1. Raw food and cooked food

Some foods are better for our health when cooked, while other foods are more nutritious when eaten raw.

2. Observe and compare raw and cooked potatoes

What are the changes in cooked potatoes compared to raw potatoes?

To summarize:

Boiled potatoes are soft, tasty, and easy to digest and absorb, but they suffer a huge loss of nutrients.

3. Observe and compare raw and cooked chicken

Observe raw chicken

①Put the beaker with water and chicken on the asbestos mesh of the tripod.

② Light the alcohol lamp for heating, and the operation must be standardized.

③After heating, cover the alcohol lamp with the lamp cap twice.

④ Use tweezers to take out the cooked chicken and put it into a small plate, and organize the experimental tools at the same time.

Raw food and cooked food PPT, part 3: knowledge expansion

Eating food raw or cooked has its own advantages and disadvantages

Cooked food: The protein and fat in food will change after heating and become easier to be digested and absorbed by the body. Moreover, cooked food is softer and easier to digest. However, during food processing, some nutrients will be lost.

Eat raw: Raw food will retain its own nutrients, especially the vitamins will not be destroyed, which can reduce the loss of nutrients, but you must pay attention to dietary hygiene.

What foods cannot be eaten raw

In recent years, many people have begun to accept Westerners' "eating raw" eating habits. However, from a nutritional point of view, "eating raw" has advantages and disadvantages, which cannot be generalized; from a food safety point of view, we need to be extremely careful.

Most vegetables are suitable for eating raw, but eating some vegetables raw is not conducive to the absorption of nutrients. Carrots are best eaten cooked, and they should be cooked with foods containing more fat, so that beta-carotene can be better dissolved. into fat and absorbed by the body.

Raw food and cooked food PPT, Part 4: Consolidation exercises

1. Choice

1. Which of the following descriptions of cooked beef is incorrect ( )

A. Cooked beef is easy to digest

B. Cooked beef tastes more fragrant

C. Cooked beef kills bacteria

D. Cooked beef is more nutritious

2. Which of the following ways of eating food is incorrect ( )

A. Boil the potatoes and eat them

B. Eat the beans raw

C. Cucumbers are made into salad dishes

D. Wash the tomatoes and mix with sugar to eat

2. Judgment

1. High-temperature heating will destroy the nutrients in food, so food should be eaten raw. ( )

2. After protein and fat are heated, they become easily absorbed and digested by the body. ( )

3. In order to ensure the body's absorption of nutrients, some foods are suitable for eating raw, and some foods are suitable for eating cooked. ( )

Raw food and cooked food PPT, Part 5: Class summary

1. Raw food and cooked food

2. Observe and compare raw and cooked potatoes

3. Observe and compare raw and cooked chicken

Some foods are better for our health when cooked, while other foods are more nutritious when eaten raw.

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For more information about the "Food Raw Food and Cooked Food" PPT courseware, please click the Food ppt Raw Food and Cooked Food ppt tab.

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Update Time: 2024-10-01

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