"The Discovery of Plant Photosynthesis" PPT

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"The Discovery of Plant Photosynthesis" PPT

Part One: Photosynthesis

The process in which green plants use light energy through chloroplasts to convert carbon dioxide and water into organic matter that stores energy and releases oxygen is called photosynthesis.

Raw materials: carbon dioxide (CO2), water (H2O)

Location: chloroplast

Condition: light

Products: organic matter (energy stored), oxygen (O2)

PPT on the discovery of plant photosynthesis, part 2: classroom experiment

experiment one

Both the candle and the mouse need oxygen

Why does the candle go out?

Why do mice die?

Experiment 2

Plants cannot obtain carbon dioxide and cannot grow normally

Why do plants wither?

Experiment 3

The plant consumes the carbon dioxide produced by the candle (the mouse) and provides the oxygen that allows the candle to burn and sustain a mouse's life.

Why does adding a pot of plants prevent the candle from going out?

Why would adding a pot of plants prevent the mice from dying?

Why can plants grow well if mice or candles are added?

The Discovery of Plant Photosynthesis PPT, Part Three: The Significance of Photosynthesis

Green plants can accumulate organic matter through photosynthesis

Photosynthesis is like a huge energy conversion station, storing solar energy in the organic matter in plants.

PPT on the discovery of plant photosynthesis, part 4: test you

1. Helmont was inspired by willow cultivation experiments. The main substances needed for the growth of green plants are: ( )

A.Carbon dioxide B.Water C.Inorganic salts D.Oxygen

2. Priestley's experiment tells us that green plants need to absorb ( ) and release ( ) at the same time to grow.

A.Carbon dioxide B.Water C.Inorganic salts D.Oxygen

3. Which of the following factors is not necessary for plant growth: ( )

A.Carbon dioxide B.Water C.Soil D.Sunlight

4. Priestley’s experiment cannot explain ( )

A. Green plants require carbon dioxide for photosynthesis

B. Photosynthesis of green plants releases oxygen

C. The burning of candles requires oxygen

D. Green plants need water for photosynthesis

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, discovery of plant photosynthesis PPT download, .PPT format;

For more information about the PPT courseware "Photosynthesis and Respiration of Green Plants and the Discovery of Plant Photosynthesis", please click the "Photosynthesis and Respiration of Green Plants ppt Discovery of Plant Photosynthesis" ppt tag.

"The Discovery of Plant Photosynthesis" PPT courseware:

"The Discovery of Plant Photosynthesis" PPT courseware Class Preview Read the first paragraph on page P78 of the textbook. Answer: The concept of photosynthesis: The process in which green plants use light energy through chloroplasts to convert carbon dioxide and water into organic matter that stores energy and releases oxygen is called...

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Update Time: 2024-09-05

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

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