"Green plants are the source of food" PPT

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"Green plants are the source of food" PPT

Part One: Learning Objectives

Overview Green plants directly or indirectly provide food and energy to many living things.

Human food comes from green plants

1. What is the relationship between human food and green plants?

2. If there were no green plants on the earth, could humans survive?

guide:

1. Students work in groups of four and name the foods they usually like to eat.

2. Refer to the examples given in Table 1 and Table 2 to complete the table and analyze the sources of common foods.

think about it

The roots, stems, leaves, flowers, fruits and seeds of many plants can be directly eaten by us. Can you give an example?

Green plants are the source of food PPT, part 2: Animal food comes from green plants

Herbivore

carnivore

Omnivores

Herbivores feed directly on plants

Carnivores feed indirectly on plants

Omnivores feed directly or indirectly on plants

in conclusion:

Whether they are herbivores, carnivores or omnivores, their food comes directly or indirectly from green plants.

Green plants are the source of food PPT, the third part: training to meet standards

1. Among the following animals, which one is omnivorous ()

A． Horse B. dog c. Sheep D. tiger

2. The energy required for human growth and development depends on ()

A． Absorption b. respiration

C． Photosynthesis D. Transpiration

3. Which organ of the plant is the main edible part of carrots ( )

A. Root B. Stem C. Leaf D. Fruit

True or False

1. People can live by eating meat, milk and eggs, so it is wrong to say that human food comes from green plants. ( )

2. Animal food comes directly from green plants. ( )

3. "Green food" comes from a good ecological environment and can bring people strong vitality. ( )

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, green plants are the source of food PPT download, .PPT format;

For more information about "The role of green plants in the biosphere, green plants are the source of food" PPT courseware, please click the "The role of green plants in the biosphere ppt green plants are the source of food" ppt tag.

"Green plants are the source of food" PPT courseware:

"Green plants are the source of food" PPT courseware Part 1: The meaning of photosynthesis Topic: 1 What is the relationship between human food and green plants? 2 If there were no green plants on the earth, could humans still survive? Instructions: 1 In groups of four, tell the average...

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Update Time: 2024-09-04

This template belongs to biology courseware Jiangsu Education Edition Seventh Grade Biology Volume 1 industry PPT template

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