Exam 7: Photosynthesis: Using Light to Make Food

The shorter the wavelength of visible light,the ________.

Please use the following information to answer the following questions. You work for a company selling tropical rain forest plants commonly found in the understory of the forest. These plants are shade tolerant and can be grown indoors because they require low light. Your employer wants you to find out what is the best type of light to maximize growth of these understory plants. Using a full spectrum of natural light would cause these plants to die because they are a shade-tolerant plant species. From your biology class, you recall that the light-dependent reactions of photosynthesis involve pigment molecules that absorb light of specific wavelengths. You also remember the experiments done by the German biologist Theodor Engelmann, in which he separated light using a prism into different wavelengths and then determined which wavelengths were best for promoting photosynthesis in the algae species he was examining. Your goal is to determine which wavelengths (colors) of light are best for promoting photosynthesis to enhance growth in your species of plant. To achieve this, you grew your plants under different wavelengths of light and measured their growth rates. The wavelengths were measured in nanometers (nm), and the growth rate was measured in millimeters per day (mm/day). The data you collected are as follows: Make a bar graph plotting growth rates on the y-axis and wavelengths of light on the x-axis. Referring to your graph, answer the following questions: -Some plant species require shaded conditions while other plant species require bright sunlight.Shade tolerance is best related to which of these characteristics?

Which of these is NOT considered an advantage of biofuels from food crops?

The Calvin cycle requires ________ and ________ from the light reactions in order to operate.

Please refer to the following art to answer the following questions. -The energy in the proton gradient above is ________.

Which of the following equations best summarizes photosynthesis?

Please use the following information to answer the following questions. You work for a company selling tropical rain forest plants commonly found in the understory of the forest. These plants are shade tolerant and can be grown indoors because they require low light. Your employer wants you to find out what is the best type of light to maximize growth of these understory plants. Using a full spectrum of natural light would cause these plants to die because they are a shade-tolerant plant species. From your biology class, you recall that the light-dependent reactions of photosynthesis involve pigment molecules that absorb light of specific wavelengths. You also remember the experiments done by the German biologist Theodor Engelmann, in which he separated light using a prism into different wavelengths and then determined which wavelengths were best for promoting photosynthesis in the algae species he was examining. Your goal is to determine which wavelengths (colors) of light are best for promoting photosynthesis to enhance growth in your species of plant. To achieve this, you grew your plants under different wavelengths of light and measured their growth rates. The wavelengths were measured in nanometers (nm), and the growth rate was measured in millimeters per day (mm/day). The data you collected are as follows: Make a bar graph plotting growth rates on the y-axis and wavelengths of light on the x-axis. Referring to your graph, answer the following questions: -Shade-tolerant plants have many adaptations for living in areas of low light.Predict whether each of the following processes would be high or low in comparison with other plants and choose the answer that is most CORRECT. Net photosynthetic rate Chlorophyll per area of the leaf Electron transport chain rate

Which of the following is produced during the light reactions of photosynthesis?

When a molecule absorbs a photon,one of its electrons is raised to the ________ state.

Please use the following information to answer the following questions. You work for a company selling tropical rain forest plants commonly found in the understory of the forest. These plants are shade tolerant and can be grown indoors because they require low light. Your employer wants you to find out what is the best type of light to maximize growth of these understory plants. Using a full spectrum of natural light would cause these plants to die because they are a shade-tolerant plant species. From your biology class, you recall that the light-dependent reactions of photosynthesis involve pigment molecules that absorb light of specific wavelengths. You also remember the experiments done by the German biologist Theodor Engelmann, in which he separated light using a prism into different wavelengths and then determined which wavelengths were best for promoting photosynthesis in the algae species he was examining. Your goal is to determine which wavelengths (colors) of light are best for promoting photosynthesis to enhance growth in your species of plant. To achieve this, you grew your plants under different wavelengths of light and measured their growth rates. The wavelengths were measured in nanometers (nm), and the growth rate was measured in millimeters per day (mm/day). The data you collected are as follows: Make a bar graph plotting growth rates on the y-axis and wavelengths of light on the x-axis. Referring to your graph, answer the following questions: -Which wavelength of light is the LEAST useful to your plant's growth?

Which of the following is an autotroph?

The light reactions of photosynthesis take place ________.

Please refer to the following art to answer the following questions. -If an herbicide blocked the Calvin cycle before the generation of glyceraldehyde 3-phosphate (G3P),which of the following statements would be TRUE?

What is one reason why plants have accessory pigment molecules,like chlorophyll b and carotenoids?

Which of the following is found in both cellular respiration and in the light reactions of photosynthesis?

Which of the following is a way that a molecule releases energy gained by absorption of a photon?

Within the inner membrane of a chloroplast,interconnected sacs of membrane called ________ are suspended in a thick fluid called the ________.

The energy of wavelengths that appear ________ is LEAST useful to photosynthesis.

Art Questions -Refer to the accompanying figure.Plant cells that contain the organelle responsible for photosynthesis are concentrated in cells of the ________.

The products of the light reactions of photosynthesis are ________.