Chapter 4 Practice Test (Sec 4.1 & 4.2) Questions and Answers 100% Pass

Chapter 4 Practice Test (Sec 4.1 & 4.2) Questions and Answers 100% Pass 1. Photosynthesis a. uses the energy in sunlight to make food. b. uses the glucose in sunlight to make food. c. uses the energy in sunlight to make ATP. d. breaks down glucose to form ATP. - ANSWER -a. uses the energy in sunlight to make food. 2. Which of the following autotrophs is also a producer? a. a maple tree b. the blue-green bacteria known as cyanobacteria c. Laurencia, a marine genus of Red Algae from Hawaii. d. All of the above are producers. - ANSWER -d. All of the above are producers. 3. In the food chain grass -- grasshopper -- snake -- hawk, which organism(s) are the heterotrophs? a. the grass b. the grass and grasshopper c. the hawk d. the grasshopper, snake, and hawk - ANSWER -d. the grasshopper, snake, and hawk 4. Which of the following statements is true about glucose and ATP? 2 | P a g e Created By Grace Amelia 2025: All Rights Reserved. (1) Glucose is made during photosynthesis. (2) The energy in sunlight is temporarily stored in glucose before it is transferred to ATP. (3) ATP is the energy-carrying molecule that cells use for energy. (4) The processes that make ATP and glucose also recycle oxygen in Earth's atmosphere. a. statement 1 only b. statements 2 and 3 only c. statements 1, 2, and 3 only d. All 4 statements are correct. - ANSWER -d. All 4 statements are correct. 5. Photosynthesis can be described as the process that a. uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen. b. uses glucose and oxygen to produce energy for the cell (ATP), releasing carbon dioxide and water. c. uses glucose and oxygen, in the presence of sunlight, to make ATP. d. uses carbon dioxide and water, in the presence of sunlight, to produce ATP and oxygen. - ANSWER -a. uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen. 6. Which statement best describes the relationship between a consumer and a producer? a. A lion eating an antelope. b. A caterpillar eating a leaf. c. A snake eating a rat. d. A flower absorbing sunlight. - ANSWER -b. A caterpillar eating a leaf. 7. Which of the following statements is true? 3 | P a g e Created By Grace Amelia 2025: All Rights Reserved. a. The products of photosynthesis are the reactants of cellular respiration. b. The products of cellular respiration are the reactants of photosynthesis. c. Both statements are true. d. Neither statement is true. - ANSWER -c. Both statements are true. 8. The correct chemical formula for photosynthesis (in the presence of sunlight) is a. 6CO2 + 6O2 -- C6H12O6 + 6H2O. b. 6CO2 + 6H2O -- C6H12O6 + 6O2. c. C6H12O6 + 6O2 -- 6CO2 + 6H2O d. C6H12O6 + 6CO2 -- 6O2 + 6H2O - ANSWER -b. 6CO2 + 6H2O -- C6H12O6 + 6O2. 9. Most autotrophs make "food" through the process of a. cellular respiration. b. chemosynthesis. c. homeostasis. d. photosynthesis. - ANSWER -d. photosynthesis. 10. The correct sequence of events in the light reactions is a. absorption of sunlight, electrons flow down the electron transport chain, ATP is made, NADPH is made. b. absorption of sunlight, splitting of water, electrons flow down the electron transport chain, ATP is made. c. electrons flow down the electron transport chain, NADPH is made, ATP is made, water is split. 4 | P a g e Created By Grace Amelia 2025: All Rights Reserved. d. absorption of sunlight, electrons flow down the electron transport chain, NADPH is made, water is split. - ANSWER -b. absorption of sunlight, splitting of water, electrons flow down the electron transport chain, ATP is made. 11. The Calvin cycle occurs a. in the granum of the thylakoid membranes of the chloroplast. b. in the stroma surrounding the inner membrane of the chloroplast. c. in the stroma surrounding the thylakoid membranes of the chloroplast. d. in the granum inside the inner membrane of the chloroplast. - ANSWER -c. in the stroma surrounding the thylakoid membranes of the chloroplast