Basic knowledge of teacher recruitment: Does anyone have detailed content on the "Photosynthesis" simulation questions?

1. The picture shown is an experiment done by the British scientist Priestley: a lit candle and a white mouse were placed in a sealed glass bell jar. The candle soon went out. , the mouse died quickly (as shown in Figures A and B). Put a potted plant and a lit candle together in a sealed glass cover. The plant can stay alive for a long time and the candle will not go out (as shown in Figure C). Put a potted plant and a white mouse together in a sealed glass cover, and both the plant and the white mouse can live normally (as shown in Figure D). The following analysis is correct ( ).

A. Pictures A and B are used for comparison

B. The reason why the mouse in B died was that there was no food in the glass bell jar

C. The experimental phenomena shown in Figures C and D illustrate that the airtight glass cover contains oxygen required for animal life and candle burning, but cannot meet the carbon dioxide required for plant life

D. If the entire device is placed In a dark environment, all phenomena are the same as in light

2. Which of the following are products of photosynthesis ( ).

A. Oxygen, carbon dioxide B. Oxygen, starch (energy storage)

C. Water, starch (energy storage) D. Carbon dioxide, water

3 .The purpose of dark processing in "the experiment of green leaves producing organic matter under light" is ().

A. Consume organic matter B. Produce organic matter

C. Consume carbon dioxide D. Produce oxygen

4. The main organ of plants for photosynthesis is ().

A. Leaf B. Bud C. Chloroplast D. Vein

5. For a green flowering plant, the cells capable of photosynthesis are ( ).

A. Root hair cells B. Mesophyll cells C. Fruit pulp cells D. Petal cells

6. Which of the following statements about photosynthesis of green plants is correct ( ).

A. Light is necessary to make organic matter

B. Every cell of green plants can perform photosynthesis

C. The site of photosynthesis is chlorophyll< /p>

D. The raw materials for photosynthesis are sunlight, water and carbon dioxide

1. Answer A. Analysis: Generally speaking, the experimental group is the one that is treated with the experimental variables, and the control group is the one that is not treated. There are no plants in both groups A and B, so A and B form a control experiment with C and D respectively. A and B Both are control groups, C and D are experimental groups, A is correct; the main reason for the death of mice in B is that there is no oxygen in the glass bell jar, and the mice cannot breathe, B is wrong; carbon dioxide emitted due to candle burning or animal breathing is Raw materials for photosynthesis of green plants. The oxygen produced by photosynthesis not only meets the needs of plants for their own respiration, but also supplies candles for burning and mice for respiration. Therefore, the green plants can live for a long time, the candles have not been extinguished, and the mice can live for a long time. Therefore, "Explanation of the experimental phenomena shown in Figures B and C", the airtight glass cover contains oxygen required for animal life and candle burning and carbon dioxide required for plant life, C is wrong; if the entire device is placed in a dark environment, The green plants in the device D cannot perform photosynthesis and the leaves cannot release oxygen, so the mice will die due to lack of oxygen, so D is wrong.

So choose: A.

So choose: B.

3. Answer A. Analysis: The plants selected for the experiment had already undergone photosynthesis before the experiment, and contained abundant organic matter (starch). Failure to remove it will affect the experimental results. Therefore, the purpose of "dark treatment" of geraniums for one day and night is to use up the starch in the leaves and eliminate the interference of the original starch on the experiment. In this way, the starch tested with iodine solution in the experiment can only be produced by the leaves during the experiment, but cannot be stored by the leaves before the experiment.

So choose: A.

4. Answer A. Analysis: From the analysis, we know that the place where plants perform photosynthesis is chloroplasts, and leaves contain more chloroplasts, so leaves are the main organs of plants for photosynthesis.

So choose: A.

5. Answer B.

Analysis: The place where plants perform photosynthesis is chloroplasts, so photosynthesis can only be performed in the green parts of plants, that is, in cells containing chloroplasts; among the cells that make up leaves, only mesophyll cells and guard cells contain chloroplasts, so leaves The cells capable of photosynthesis are mesophyll cells and guard cells.

So choose: B.

6. Answer A. Analysis: Photosynthesis must be carried out in the chloroplasts of cells under light. A is correct; the condition of photosynthesis is light, and the place is chloroplasts. Photosynthesis must be carried out in living cells containing chloroplasts in the light, not all living cells. Cells can carry out photosynthesis, such as root cells, B is wrong; chlorophyll is a chemical substance, chloroplast is a kind of organelle, chloroplast contains chlorophyll, chloroplast is the place of photosynthesis, C is wrong; Photosynthesis is the utilization of green plants through chloroplasts Light energy is the process of converting carbon dioxide and water into organic matter that stores energy (mainly starch) and releasing oxygen. It can be expressed by the expression: carbon dioxide + water → organic matter (storing energy) + oxygen. The raw materials for photosynthesis are: carbon dioxide and water. D is wrong.