
Concept explainers
Where does the energy come from to drive photosynthesis?
a. | A chloroplast |
b. | ATP |
c. | The sun |
d. | Glucose |

Introduction:
The photosynthesis is required by the plant to harvest the light energy from the sunlight and convert the atmospheric carbon dioxide into a usable form of carbohydrates. The carbohydrate synthesized by the plant is glucose that is stored in the form of starch.
Answer to Problem 1MCQ
Correct answer:
The energy derived for initiating the process of photosynthesis is from Sun. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
Option c. is given as,“The sun.”
The sun provides energy-rich particles called photons that excite the electrons present in the photosystem complex of the chloroplast. The excited electron initiates various mechanisms that give the end product as glucose. Hence, option c. is correct.
Reason for incorrect answer:
Option a. is given as, “A chloroplast.”
The chloroplast is the organelle that is present exclusively in plant cells and functions as the site for photosynthesis. Thus, it is the site for photosynthesis and not the source for energy for the process. Hence, option a. is incorrect.
Option b. is given as,“ATP.”
ATP stands for adenosine triphosphate. This is an energy-rich molecule that is used in the light-independent or dark reactions along with NADPH to form glucose. Therefore it does not initiate photosynthesis. Hence, option b. is incorrect.
Option d. is given as, “Glucose.”
Glucose is the end product of photosynthesis. The plant body uses it after transportation for various metabolic reactions; however, it does not provide energy for the process of photosynthesis. Hence, option d. is incorrect.
Hence, the options a., b., and d. are incorrect.
The energy from the sun provides photons that excite the electron that leads to activation of various mechanisms and complexes involved in the process of photosynthesis, causing the formation of glucose. Thus, the correct answer is option c.
Want to see more full solutions like this?
Chapter 5 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
- please fill in missing parts , thank youarrow_forwardplease draw in the answers, thank youarrow_forwarda. On this first grid, assume that the DNA and RNA templates are read left to right. DNA DNA mRNA codon tRNA anticodon polypeptide _strand strand C с A T G A U G C A TRP b. Now do this AGAIN assuming that the DNA and RNA templates are read right to left. DNA DNA strand strand C mRNA codon tRNA anticodon polypeptide 0 A T G A U G с A TRParrow_forward
- Please identify the curve shown below. What does this curve represent? Please identify A, B, C, D, and E (the orange oval). What is occurring in these regions?arrow_forwardPlease identify the test shown here. 1) What is the test? 2) What does the test indicate? How is it performed? What is CX? 3) Why might the test be performed in a clinical setting? GEN CZ CX CPZ PTZ CACarrow_forwardDetermine how much ATP would a cell produce when using fermentation of a 50 mM glucose solution?arrow_forward
- Determine how much ATP would a cell produce when using aerobic respiration of a 7 mM glucose solution?arrow_forwardDetermine how much ATP would a cell produce when using aerobic respiration to degrade one small protein molecule into 12 molecules of malic acid, how many ATP would that cell make? Malic acid is an intermediate in the Krebs cycle. Assume there is no other carbon source and no acetyl-CoA.arrow_forwardIdentify each of the major endocrine glandsarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning




