People's Education Edition Biology for Grade 8, Volume 1
People's Education Edition Biology for Grade 8, Volume 2
People's Education Press High School Biology Compulsory Course 2
Beijing Normal University Edition Seventh Grade Biology Volume 2
People's Education Edition seventh grade biology volume 1
Beijing Normal University Edition Eighth Grade Biology Volume 1
Beijing Normal University Edition Seventh Grade Biology Volume 1
People's Education Press seventh grade biology book volume 2
Beijing Normal University Edition Eighth Grade Biology Volume 2
High School Biology Compulsory Course 1, published by People's Education Press
Jiangsu Education Edition 8th Grade Biology Volume 1
Jiangsu Education Edition Seventh Grade Biology Volume 1
Jiangsu Education Edition Seventh Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 2
!["The Life of Cells" Cells are the basic units of life activities PPT courseware 9](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/1d9bcbf1-ea2c-4d2f-b5df-4de8f905f80e.webp)
Category | Format | Size |
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People's Education Edition seventh grade biology volume 1 | pptx | 6 MB |
Description
"The Life of Cells" Cells are the basic units of life activities PPT courseware 9
Use your brain
Do we need to add nutrients to the cells in the culture flask to keep them alive?
Nutrients needed to maintain cell life
substances in cells
Speculation: What substances are contained in the fruit?
Sugars, acids, water
Speculation: What substances are contained in fish?
Speculation: What substances are contained in peanuts?
Life application
1. Grapes are dried into raisins because the ________ in the cells is lost to the air through __________. When we eat raisins, they are sweeter than grapes, which means that the ________ substances in the grape cells do not reach the outside of the cells through the cell membrane. This shows that the cell membrane has the function of _______________.
2. If you put fresh spinach in water, the water will not turn green. But what happens if you boil fresh spinach in boiling water for 10 minutes? why is that?
The water will turn green. The structure of the cell membrane is destroyed.
It means that the cell membrane has been damaged and the function of the cell membrane has been lost.
Through what structure do animal and plant cells release energy from organic matter for cells to use?
Mitochondria can cause some organic matter in cells to release chemical energy stored in them through complex changes for cells to use.
Mitochondria are the "engines" of cells
Have you mastered it?
1. What substances are contained in cells?
2. What is the function of cell membrane?
3. How is energy converted in cells?
test you
1. The organic matter contained in cells is ( )
A. Lipids, vitamins, inorganic salts B. Lipids, proteins, sugars
C. Water, inorganic salts, sugars D. Proteins, nucleic acids, oxygen
2. The energy converters contained in the cells of the root tip and leaves of the banyan tree are ( )
A. Chloroplasts and mitochondria; chloroplasts
B. Chloroplasts; chloroplasts and mitochondria
C. Mitochondria; chloroplasts and mitochondria
D. Chloroplasts and mitochondria; chloroplasts and mitochondria
3. In previous sports games, black people have shown their talents in running events and are known as the "black whirlwind". Scientific research has found that the average number of mitochondria in black muscle cells is higher than that of other races. Do mitochondria in cells have anything to do with the 100-meter race? Please use the relevant knowledge from this lesson to explain.
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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 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...
"The Life of Cells" Cells are the basic units of life activities PPT courseware 6:
"Cell Life" Cells are the basic units of life activities PPT courseware 6 Think about it and discuss it. In order to solve the problem of skin grafting for patients with large-scale burns, scientists have developed artificial skin. During the development process, human skin cells need to be placed Culture in culture bottles. ..
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Update Time: 2024-09-05
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