Lesson Presentation Vital activity of the GEF cell line of life. Visual textbook for biology lessons. Vital activity of the cell. What substances are necessary for the vital activity of plants

"Maize cell division" - compare mitosis and meyosis. A cytoplasmic membrane is formed. After the first division of MEIOS (reduction division), interphase occurs. As a result of meiosis, four subsidiaries are formed. Conjugation - a compound of homologous chromosomes. The first division of MEIOS (I) is called reduction. Control questions.

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"Cells" - cells differ: the structure and functions of cell organoids. Without nucleus - prokaryotic cell. The structure of the shell: chloroplasts - green plasts. Chromoplasts are yellow, red, brown plasts. The leukoplasts are colorless plasts. Lysosome. Cytoplasm. Function-transport substances in the cell. Functions - gives color cell, photosynthesis.

"Cell biology" - about 70 chemical elements are almost constantly in the cell. Plan: answer. Fats. Will the freezing be free? Organic connections. Carbohydrates. The structure of the molecule and the properties of water. Inorganic compounds. . Not. Task: in clear spring day T air + 10 ° C, humidity 80%.

Total in the subject of 5 presentations

Slide 2.

1. Admission of substances in a cage
2. Interconnection of cells with other cells
   • Intercellular substance
   • Intercellites
3. Cell division
4. Growth and development

Slide 3.

Admission of substances in a cage

In the cells of the eldine leaf under the microscope, it can be seen that green plaststs (chloroplasts) are smoothly moved together with cytoplasm in one direction along the cell shell.
By their movement, you can judge the movement of the cytoplasm.
This movement is constantly, but it is sometimes difficult to detect it.
The cytoplasm movement contributes to the movement in nutrients and air cells. The more active the vital activity of the cell, the greater the speed of the cytoplasm.

Slide 4.

Interconnection of cells with other cells

The cytoplasm of one living cell is usually not isolated from the cytoplasm of other living cells located nearby. The cytoplasm threads combine neighboring cells passing through the cell shells.

Slide 5.

Intercellular substance

There is a special intercellular substance between the shells of neighboring cells.
If the intercellular substance is destroyed, the cells are disconnected. This happens when cooking potatoes. In ripe fruits of watermelons and tomatoes, crumbly apples cells are also easily separated

Slide 6.

Interclauders

Often, living growing cells of all organs of the plant change the form. Their shells are rounded and places depart from each other. In these areas, the intercellular substance is destroyed. Interclatures filled with air occur.

Slide 7.

Live cells breathe, feed, grow and multiply

The substances necessary for the vital activity of the cells enter them through the cell shell in the form of solutions from other cells and their interclausers. The plant receives these substances from air and soil.

Slide 8.

Cell division

Slide 9.

Cell growth

Young cells contain many small vacuoles. In the old cell, there is usually one big vacuole, therefore the cytoplasm in which the kernel is located, adjacent to the cell shell.

Slide 10.

What substances are needed for the vital activity of plants?

1. organic substances
2. inorganic substances
3. all listed

Slide 11.

Does the inorganic substances refer?

1. manure
2. mineral salts and water

Slide 12.

Photosynthesis is a process

1. the formation of organic substances in chloroplasts in the light of carbon dioxide and water
2. the destruction of organic substances in the leaves
3. absorption of carbon dioxide and water

Slide 13.

Photosynthesis occurs in

1. cytoplasm
2. chloroplasts

Slide 14.

To form organic substances in chloroplasts of plants is necessary?

1. water, light
2. light carbon dioxide
3. water, carbon dioxide, light

The purpose of the lesson: Using the knowledge of the cell, prove,
that the cell has signs of living
organism.

Vital processes cells

1.
2.
3.
4.

Vital processes cells

Breath
Food
Height
Reproduction

Vital activity

- a set of processes,
leaking in a living organism,
serving maintenance in it
Life
and being manifestations of life.

Life is a totality of phenomena,
taking place in organisms.

Basic processes of vital activity

Using the text §8 of the textbook,
Find the main processes
Vital activity cells and fill in
Table.
Process name
His characteristic

The movement of cytoplasm

Traffic
cytoplasm
promotes
Moving B.
Cells
Nourishing
Substances and air

The movement of cytoplasm

All parts of the cell are delivered
substances needed and removed
unnecessary.
Cytoplasm can shrink and again
Roll away.

1.Pancy

From the external environment in the cell of the plant
Nutrition continuously come
Substances.
This is a natural process without
which is the vital activity of the cell
It would be impossible.
Live cell has the ability to
Electoral accumulation
nutrients.

Food

A number of complex inclusion processes
entered the cell substances
Bodies of the cell itself.
Water H2O
Carbon dioxide CO2.
Mineral
Substances

2. Breathing

- complex process of chemical reactions,
giving energy.
For breathing cells use oxygen
and isolated carbon dioxide.
O2.
CO2.

Breath

Breathing is the most important physiological
The process, as a result of which
Energy is released,
necessary for vital activity
vegetable organism.

Metabolism

The metabolism in the cell is
Chemical process transformation
Some substances in others.

Admission of substances in the cage and the exit of them from the cell

Admission of substances in a cage
and their output from the cage
Substances move:
- inside one cell,
- from the cage to the cage,
- From one part of the plant to another.
The admission of substances depends on
Permeability of shells and cytoplasm.

Metabolism

- the processes of formation of substances and their
splitting in a cage.
Substances
necessary
Cage
Substances
harmful
and
Unnecessary

3. Cell growth

Growth is
increasing volume
Mass and size
Cells.
Growth of plant
Cells take place
Account account
Vacuoles.

Cell growth

- Increase in size.

4. Reproduction of cell division

Cell division is an increase in the number
cells.
As a result of cell division and growth
All plants organs grow.

Admission of substances in a cage. In the cells of the eldine leaf under the microscope, it can be seen that green plaststs (chloroplasts) are smoothly moved together with cytoplasm in one direction along the cell shell. By their movement, you can judge the movement of the cytoplasm. This movement is constantly, but it is sometimes difficult to detect it. The cytoplasm movement contributes to the movement in nutrients and air cells. The more active the vital activity of the cell, the greater the speed of the cytoplasm.

Intercellular substance. There is a special intercellular substance between the shells of neighboring cells .. if the intercellular substance is destroyed, the cells are separated. This happens when cooking potatoes. In ripe fruits of watermelons and tomatoes, crumbly apples cells are also easily separated by the intercellular substance

Living cells breathe, feed on, grow and multiply. The substances necessary for the vital activity of the cells enter them through the cell shell in the form of solutions from other cells and their interclausers. The plant receives these substances from air and soil. Growing division

16

8. If you place the smoke rays into the tube with carbon dioxide, it will go out b) I will break up vividly) will remain unchanged

Today we will plunge with you in the mystery of the life of the crate.

How do you understand the term life? (Life is a set of phenomena taking place in organisms)

Let's remember the processes characterizing life?

(cards are hanging on the board: nutrition, reproduction, growth, development, breathing).

Today, we will try to prove that these processes are characteristic of cells.

Let's start working from viewing the slide. You have to determine to which of the listed processes may include what you will see the Slide3 presentation on the screen (Breathing). Recover the flow of oxygen and extraction of carbon dioxide in the reference abstract scheme.

What else is needed for normal life? (Food)

And in order to find out how this most important need is provided, I propose to see the results of experience. I took three carrots, describe what carrots look like. One of the carrots is suitable for your description, and the other called. Carrots, which called, I put in a bottle of water. How the carrot changes, explain why? Let's see why substances do in the cage? (Slide 4 presentation).

Due to the semipermeability of the cell shell, regulates the receipt of substances. (Mark in the abstract admission of substances in the cell)

Nutrients are moved throughout the cell and unnecessary, with the help of cytoplasm (Slide 6 presentation). Now write down the significance of the cytoplasm movement in the abstract. You know that the cells in the body are very much, so, the cytoplasm of one living cell is not isolated, but is connected through the pores of neighboring cells, and all cells are interconnected.

But sometimes cells are gradually wear out and dying. And so that the body's life continues, it should produce new at the same speed, with what old one die. The cell division is different, (examples), and the principle of division one Slide7 presentation.

Delivery is a complex process that consists of consecutive stages. The division is preceded by the division of the nucleus. The kernel increases, the calf, cylindrical shape - chromosome. They transmit hereditary signs from the cell to the cell. Chromosome copies themselves, two identical parts are formed. During the division of part of the chromosome, the cells differ in different poles. In the nuclei of each new cell they become as much as in the maternal cell. Each plant contains in cells a certain amount of chromosomes. Atomas thereof 24, in potatoes 48. The division of potatoes cells can be submitted by the scheme.

Make this cell division. Uvas lie cut cards in Envelope # 2 (Appendix 3) of which you need to properly place the steps, check on the screen. Presentation Slide 8. How to check. Set the envelopes with the task.

Look at the board, which of the processes of life we \u200b\u200bdid not consider. Sure.

And for this you will work yourself a textbook on page 45, Figure 26.

Young cells contain many vacuoles in which nutrients accumulate, gradually vacuola increases to one large vacuole. Value -0 plant growth. Hence the name of the plant, that it is constantly growing. (Slide 9 presentation).

Planned results

Personal:

The ability to comply with the discipline in the lesson, respectfully refers to the teacher and classmates.

Regulatory:

The ability to organize the execution of teacher's tasks, draw conclusions based on the results of work.

Communicative:

The ability to perceive information on rumor, to answer the questions of the teacher.

Cognitive:

The ability to work with the textbook to find the necessary material in it.

Close your eyes, relax the body,

Imagine - You are birds, you suddenly polite!

Now in the ocean dolphin sail,

Now there are apples ripe apples.

To the left, right, around looked,

Opened eyes, and again for business!

And now, we will take again to our mysterious cell. And for this, let's read the fairy tale. Presentation Slide 10.

Awareness by students of their study activities, self-assessment of the results of their activities and the whole class. Let's fill the last column of its first table. What did you know.

Is everything clear for the course of the lesson?

What part of the lesson seemed to you the most interesting?

What part of the lesson caused difficulty?

What is your mood after lesson?

Planned results

Personal:

Self-esteem based on success. Adequate understanding of the causes of success and failure in training activities.

Communicative:

The ability to express your thoughts.

Cognitive:

Reflection. Control and evaluation of the process and results of activities.

Finish the ability to paste the division scheme, draw cell growth, prepare questions P.9