Question

carbon dioxide + water + sunlight → glucose + oxygen
(ingredients) (products)

1. from looking at this equation, which would help plants perform photosynthesis more qu

add more glucose to the plants environment
add more carbon dioxide to the plants environment
add more oxygen to the plants environment
remove carbon dioxide from the plants environment
charles conducted the experiment below. observe the diagram and answer the questions on your han
pondweed received sunlight, carbon dioxide (baking soda), and water.

1. what gas is being produced by the pond weed?
2. what process is the plant conducting to produce that gas?
3. what other products are made during this reaction/ experiment?
4. what are the starting/raw materials or reactants of this experiment?
5. what cell organelle inside the plant cell does this process take place in?
6. review the picture again, what would happen to the rate of photosynthesis if the lar

from the plant? why?

1. what was the independent variable in the experiment?
2. what was the dependent variable in the experiment?

Explanation:

1. In photosynthesis, oxygen is a by - product. Pondweed, like other plants, produces oxygen during photosynthesis.
2. The process by which plants use sunlight, carbon dioxide, and water to produce glucose and oxygen is called photosynthesis.
3. The chemical equation for photosynthesis is \(6CO_2 + 6H_2O+light

ightarrow C_6H_{12}O_6 + 6O_2\). So, glucose (\(C_6H_{12}O_6\)) is also produced.

1. The reactants in the photosynthesis equation are carbon dioxide (\(CO_2\)) and water (\(H_2O\)).
2. Chloroplasts are the organelles in plant cells that contain chlorophyll, which is necessary for photosynthesis.
3. Light is a limiting factor for photosynthesis. As the lamp (a source of light) is moved away from the plant, the intensity of light reaching the plant decreases. According to the principle of limiting factors, the rate of photosynthesis will decrease because there is less light energy available to drive the light - dependent reactions of photosynthesis.
4. The independent variable is the variable that is changed in an experiment. Here, the distance of the lamp (which affects light intensity) is changed.
5. The dependent variable is the variable that is measured in an experiment. The rate of photosynthesis (which can be measured by the number of oxygen bubbles produced) is affected by the change in the independent variable.

Answer:

1. Oxygen
2. Photosynthesis
3. Glucose
4. Carbon dioxide and water
5. Chloroplast
6. The rate of photosynthesis would decrease. Because light intensity (a limiting factor for photosynthesis) decreases as the lamp is moved away.
7. Distance of the lamp from the plant
8. Rate of photosynthesis (measured by oxygen bubble production)