Concept explainers
Where does the energy come from to drive photosynthesis?
a. A chloroplast
b. ATP
c. The sun
d. Glucose
Introduction:
Photosynthesis is a process that takes place in green plants to construct complex organic compounds from water and carbon dioxide with the help of chlorophyll and sunlight. The whole process is completed in two steps; light reaction and dark reaction. ATP (adenosine triphosphate) production takes place in the light reaction of photosynthesis. This ATP is used to reduce
Answer to Problem 1MCQ
Correct answer:
The energy to carry out photosynthesis comes from the Sun. Therefore, option c. is correct.
Explanation of Solution
Reason for the correct statement:
The sun provides the light energy that is trapped by the photosystems present in the chloroplast. They trap the solar energy and synthesize ATP from it. This ATP is further used to produce carbohydrates.
Option c. is given as “The sun”.
As, “Solar energy provides the energy to carry out photosynthesis”, is the right answer.
Hence, option c. is correct.
Reasons for the incorrect statements:
Option a. is given as “A chloroplast”.
Chloroplast is referred as the site of photosynthesis. It does not provide the energy to drive photosynthesis. So, it is a wrong answer.
Option b. is given as “ATP”.
ATP is the “energy currency” produced as a result of light reaction. So, it is a wrong answer.
Option d. is given as “Glucose”.
Glucose is the final product of photosynthesis. So, it is a wrong answer.
Hence, options a., b., and d. are incorrect.
Photosynthesis is the process, by which autotrophs produce food for themselves. They use solar energy for this purpose.
Want to see more full solutions like this?
Chapter 5 Solutions
BIOLOGY: CONCEPTS & INVEST. (LOOSE)
Additional Science Textbook Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
Marine Biology (Botany, Zoology, Ecology and Evolution)
SEELEY'S ANATOMY+PHYSIOLOGY
Campbell Essential Biology (7th Edition)
- Which statement correctly describes carbon fixation? a. the conversion of CO2 to an organic compound b. the use of RUBISCO to form 3-PGA c. the production of carbohydrate molecules from G3P d. the formation of RuBP from G3P molecules e. the use of ATP and NADPH to reduce CO2arrow_forwardWhat two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c. glucose and oxygen d. glucose and carbon dioxidearrow_forwardWhich molecule absorbs the energy of a photon in photosynthesis? a. ATP b. glucose c. chlorophyll d. waterarrow_forward
- What is the energy of a photon first used to do in photosynthesis? a. split a water molecule b. energize an electron c. produce ATP d. synthesize glucosearrow_forwardThe map below shows the availability of direct solar energy in North America. Some areas are good candidates for solar heating systems and use of solar cells to produce electricity (see legend). What is the potential for using more solar energy where you live?arrow_forwardWhich statement describes how heterotrophs depend on autotrophs for survival? a Autotrophs make lactic acid for respiration. b Autotrophs supply oxygen for respiration. c Autotrophs produce carbon dioxide for respiration. d Autotrophs provide sunlight for respiration.arrow_forward
- Use to answer Household chemicals are sometimes discarded in ways that allow the chemicals to enter lakes and streams. These diluted chemicals may affect the growth of aquatic plants or terrestrial plants growing beside the water. A student hypothesized that a particular household chemical would have a negative effect on the photosynthetic rate of plants. She assumed that the chemical would not kill the plants. Question: Unit C - Design an experiment to determine whether a household chemical affects the rate of photosynthesis in plants . Your response should include • a detailed procedure • identification of the controlled, manipulated, and responding variables • an explanation of evidence that you will collect and how it will be interpreted to determine the effect the chemical had on rate of photosynthesisarrow_forwardEvaluate the role of photosynthesis in the flow of energy through an aquatic ecosystem.arrow_forwardWhich process is most directly driven by light energy? A. ATP synthesis B. reduction of NADP+ molecules C. transfer of energy from pigment to pigment D. creation of a pH gradient by pumping protonsarrow_forward
- Compare fire to photosynthesis.arrow_forwardUse the image below to answer the questions: a) What general process does the picture illustrate? b) Briefly outline three main steps involved in this process c) indicate why an oxygen-free environment is importantarrow_forwardProvide a one word answer. What is the essential ingredient "to start" photosynthesis?arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning