"The Life of Cells" Cells are the basic units of life activities PPT courseware 5

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"The Life of Cells" Cells are the basic units of life activities PPT courseware 5

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"The Life of Cells" Cells are the basic units of life activities PPT courseware 5

Living organisms are composed of countless cells.

Cells are carrying out various life activities every moment of their lives.

Distinguish between organic and inorganic substances?

Burn peanut seeds. After the seeds are burned, the remaining ash is inorganic salts, and the burned material is organic matter.

Cells are separated from the external environment by a barrier - the cell membrane. Does the cell membrane completely seal the cell?

Thinking: Why do families usually like to sprinkle some salt when washing vegetables?

think

1. Where does animal energy come from?

- From food. Feed on plants directly or indirectly.

2. Where does the energy of plants come from?

——Chloroplasts in green plant cells convert light energy into chemical energy, which is stored in the organic matter they produce.

Plant cells use the energy in these organisms to meet the needs of life.

3. What structures do animals and plants use to release the energy of organic matter for cells to use?

- Mitochondria combine organic matter with oxygen, and through a complex process, release the energy in the organic matter for cells to use.

The nucleus is the control center

1. The nucleus controls the development and inheritance of organisms.

2.DNA contains all the information that guides biological development.

3. Cell life is the unity of changes in matter, energy and information.

Classroom exercises

1. The structure that controls the movement of substances in and out of cells is ( )

A. Cell wall B. Cell membrane

C. Tonoplast D. Cytoplasm

2.The energy converter in animal cells is ( )

A. Vacuole B. Chromosome

C. Mitochondria D. Chloroplasts

3. The structure in plant cells that converts solar energy into chemical energy is ( )

A. Cytoplasm B. Mitochondria

C. Chloroplast D. Nucleus

4. Green plants can release oxygen. Which structure in the cell is closely related to this? ( )

A cell membrane B cytoplasm

C chloroplast D mitochondria

5. Judgment:

A. All substances in cells are made by themselves ( )

B. Not all substances can pass through cell membranes. ( )

C. Mitochondria and chloroplasts both directly power cell life. ( )

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For more information about the PPT courseware "Cells are the basic unit of life activities, the life of cells", please click the Cells are the basic units of life activities ppt cell life ppt tag.

"The Life of Cells" Cells are the basic units of life activities PPT courseware 9:

"The Life of Cells" Cells are the basic units of life activities PPT courseware 9 Use your brain. Do you need to add nutrients to the cells in the culture flask to keep them alive? Nutrients need to be added to maintain cell life. Substances in cells. Speculation: Substances contained in fruits...

"The Life of Cells" Cells are the basic units of life activities PPT courseware 8:

"The Life of Cells" Cells are the basic units of life activities PPT courseware 8 [Autonomous learning] P50~52: 1. The substances in cells include two categories: _______ and _______. The former is composed of ______, ______ and _____, and the latter is composed of ______, ______..

"The Life of Cells" Cells are the basic units of life activities PPT courseware 7:

"The Life of Cells" Cells are the basic units of life activities PPT courseware 7 Think about it, discuss it and try to make your own guesses! (1) Sterile, non-toxic environment (2) Nutrients (synthetic culture fluid) (3) Appropriate temperature and pH value (4) Appropriate...

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Update Time: 2024-11-22

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"The Life of Cells" Cells are the basic units of life activities PPT courseware 5
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