| Various elements that influence the speed of photosynthesis, including light intensity, carbon dioxide concentration, and temperature. | Factors Affecting Photosynthesis |
| Name three factors that can affect the rate of photosynthesis. | Light intensity, carbon dioxide concentration and temperature are the three factors that can affect the rate of photosynthesis |
| The level of brightness or illumination, influencing the speed of photosynthesis. | Light Intensity |
| How does light intensity impact the rate of photosynthesis? | Photosynthesis happens faster at higher light intensities because light provides the energy needed for the process. |
| The amount of carbon dioxide available in the environment, influencing the rate of photosynthesis. | Carbon Dioxide Concentration |
| Why does an increase in carbon dioxide concentration enhance the rate of photosynthesis? | The higher the concentration of carbon dioxide, the faster the rate of photosynthesis, as carbon dioxide is a raw material needed for the process. |
| The degree of heat in the environment, affecting the rate of photosynthesis. | Temperature |
| How does temperature influence the rate of photosynthesis? | At higher temperatures, the rate of photosynthesis increases because reactant molecules have more energy, leading to more successful reactions. However, very high temperatures can denature enzymes, causing photosynthesis to stop. |
| Conditions necessary for photosynthesis, and if any are in short supply, they can restrict the rate of photosynthesis. | Limiting Factors |
| What is a limiting factor in photosynthesis? | A limiting factor is a condition that, if in short supply, prevents photosynthesis from happening any faster. |
| The limiting factor during nighttime photosynthesis is the absence of light. | Light Intensity Limiting Factor |
| Why is light the limiting factor at night for photosynthesis? | At night, there's little light, which makes it the limiting factor even if other conditions such as carbon dioxide and chlorophyll are present. |
| The situation where raising the light intensity results in an increased rate of photosynthesis. | Increased Light Intensity |
| What happens to the rate of photosynthesis when the light level is increased? | The rate of photosynthesis increases with an increase in light level. |
| When, despite increased light levels, the rate of photosynthesis reaches a point where further increases in light no longer make a difference. | New Limiting Factor |
| What occurs when increasing the light intensity further stops affecting the rate of photosynthesis? | At this point, something else has become the limiting factor. |
| Graphical representations illustrating the relationship between the rate of photosynthesis and various factors. | Photosynthesis Graphs |
| What can photosynthesis graphs show? | Photosynthesis graphs can demonstrate the impact of multiple limiting factors on the rate of photosynthesis. |
| Conditions affecting the rate of photosynthesis that can be depicted on a graph. | Limiting Factors in Photosynthesis Graphs |
| Can a graph show more than one limiting factor? | Yes, graphs can show the impact of multiple limiting factors on the rate of photosynthesis. |
| The condition initially restricting the rate of photosynthesis, as seen in the early stages of the graph. | Initial Limiting Factor |
| What is the initial limiting factor in the photosynthesis graph? | In the example given, carbon dioxide concentration is the initial limiting factor. |
| The point on a graph where the rate of photosynthesis levels off, indicating that the limiting factor has changed. | Constant Rate |
| What does a constant rate on a photosynthesis graph suggest? | When the rate becomes constant, it signifies that the initial limiting factor, such as carbon dioxide concentration, is no longer limiting the rate. |
| Another condition, such as temperature in this example, that becomes a limiting factor after the initial one is no longer limiting. | Second Limiting Factor |
| In the example provided, what is the secondary limiting factor? | Temperature becomes a limiting factor after the rate levels off, leading to a further increase in the rate of photosynthesis when the temperature increased. |
| The principle stating that light intensity is inversely proportional to the square of the distance from the light source. | Inverse Square Law |
| What is the relationship between light intensity and distance according to the inverse square law? | There is an inverse relationship between distance and light intensity; as distance increases, light intensity decreases. |
| The relationship where two variables change in the same direction; in this case, the rate of photosynthesis is directly proportional to light intensity. | Direct Proportionality |
| How is the rate of photosynthesis related to light intensity? | The rate of photosynthesis is directly proportional to light intensity. |
| The relationship where two variables change in opposite directions; in this case, the rate of photosynthesis is inversely proportional to the distance from the light source. | Inverse Proportionality |
| What happens to the rate of photosynthesis as the distance from the light source (lamp) increases? | If you move a lamp away from a plant, photosynthesis happens more slowly because the rate of photosynthesis is inversely proportional to the distance from the light source. |
| Illustration of the inverse square law, such as if the distance is doubled, the amount of light reaching the plant is quartered. | Example Calculation |
| What happens to the amount of light reaching the plant if the distance is doubled, according to the inverse square law? | If the distance is doubled, the amount of light that reaches the plant is quartered. |
