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Photosynthesis Review Worksheet

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UNIT 4A Study Guide - Photosynthesis

Name Date Period

PHOTOSYNTHESIS STARTS WITH

1. Molecules that collect light energy are called

2. Chlorophyll reflects wavelengths of light and absorbs all the other .

3. is the main light absorbing pigment found in green plants.

4. Plants “look” green because chlorophyll green light.

5. Organisms, like green plants, that can make their own food using energy from the sun are called .

6. The gel-filled space inside the chloroplast surrounding the thylakoid stacks is called the .

7. I and II contain chlorophyll and absorb light energy during the reactions.

8. During the light dependent reactions, H+ ions build up in the space when molecules are split.

9. The enzymes for the light dependent reactions are found in the , while the Calvin cycle happens in the .

10. The stacks of thylakoids found inside chloroplasts are called .

11. The light independent reactions are also called the .

12. Carbon and oxygen from end up as part of a molecule following the Calvin cycle.

13. and are made during the dependent reactions and carry energy and high energy electrons that are used during the Calvin cycle to produce like glucose.

14. The in H2O is given off as gas to the atmosphere when water is split during the light dependent reactions.

15. Proteins in living things that help chemical reactions happen are called .

16. Electrons are transferred along the membrane from Photosystem II to Photosystem I using the .

17. Orange colored pigments called absorb different wavelengths of light than chlorophyll and help chlorophyll use more of the sun’s energy.

18. , amount of , and are all factors that affect the rate of photosynthesis.

ENERGY AND LIFE

MULTIPLE CHOICE: CIRCLE ALL THE STATEMENTS THAT ARE TRUE OR COMPLETE THE STATEMENT.

19. All organisms get the ENERGY they need to regenerate ATP from

A. phosphates

B. foods like glucose

C. organelles

D. ADP

20. Which of the following are TRUE about ATP?

A. ATP consists of ribose sugar, adenine, and 3 phosphate groups

B. ADP forms when ATP loses a phosphate and releases energy.

C. Used ATP is discarded by the cell as waste.

D. ATP provides energy for active transport in cells.

21. Fill in the following Table.

What is it called? DESCRIPTION GIVE 2 EXAMPLES
Organisms that can make their own food
Organisms that obtain energy from the food they eat

22. What is the ultimate source of energy autotrophs use produce their own food?

23. On the line below each picture, classify the organism as either an AUTOTROPH or a HETEROTROPH.

Hint: What color are mushrooms?

24. NAME THE CHEMICAL COMPOUND SHOWN BELOW THAT CELLS USE TO STORE ENERGY.

25. LABEL THE PARTS THAT MAKE UP THIS MOLECULE: Adenine, Ribose, Phosphate Groups

A=

B=

C=

26. WHAT DOES ATP STAND FOR?

A T

27. HOW MANY PHOSPHATES ARE IN ONE MOLECULE OF ADP?

28. HOW IS ATP MADE FROM ADP?

29. USE the words: ENERGY STORING and ENERGY RELEASING to label what is happening in the reactions shown below:

PHOTOSYNTHESIS: An Overview

30. Plants gather the sun’s energy with light-absorbing MOLECULES called

A. thylakoids

B. pigments

C. chloroplasts

D. glucose

31. Chlorophyll absorbs all colors in the spectrum except for .

A. blue-violet

B. green

C. red

D. yellow

32. Most plants appear green because chlorophyll

A. reflects green light

B. absorbs green light

33. A student conducts an experiment by collecting the gas given off by a green plant in bright sunlight at room temperature. The gas being collected is probably

A. ATP

B. water vapor

C. carbon dioxide

D. oxygen

34. Write the complete overall chemical equation for photosynthesis using chemical symbols instead of words:

35. How many molecules of carbon dioxide (CO2) are used to make 1 molecule of glucose (C6H12O6) ?

36. In addition to water and carbon dioxide, what two things are required for photosynthesis to happen?

REACTIONS OF PHOTOSYNTHESIS

MULTIPLE CHOICE: Circle the letter of the answer that best completes the statement or answers the question.

37. Where are Photosystems I and II found?

A. in the stroma

B. in the thylakoid space

C. in the thylakoid membrane

D. in the Calvin cycle

38. The Calvin cycle is another name for

39. Why does the space inside the thylakoid become positively charged during the light-dependent reactions?

A. ATP synthase pushes H+ ions from the stroma across the membrane into the space

B. H+ ions build up in the space as water is split

C. Electrons have a + charge and are released here by Photosystem II

D. Carbon dioxide builds up in the stroma

40. CIRCLE ALL THAT ARE TRUE about the LIGHT DEPENDENT REACTION.

A. High-energy electrons move through the electron transport chain.

B. Pigments in photosystems II and I absorb light.

C. ATP synthase helps H+ ions in the thylakoid space to pass through the membrane to the stroma.

D. ATP and NADPH are used to produce high-energy sugars.

41. CIRCLE ALL THAT ARE TRUE about the CALVIN CYCLE

A. ATP is produced by ATP synthase and oxygen is released

B. It is also called the light-independent reaction.

C. ATP and NADPH from the light-dependent reactions are used here

D. High energy sugar compounds are made from CO2

42. Which step is the beginning of photosynthesis?

A. Pigments in photosystem I absorb light.

B. Pigments in photosystem II absorb light.

C. High energy electrons move through the electron transport chain.

D. ATP and NADPH produce high-energy sugars.

43. CIRCLE ALL OF THE FOLLOWING THAT ARE FOUND INSIDE THE THYLAKOID MEMBRANE.

A. electron transport chain

B. photosystem I

C. photosystem II

D. ATP synthase

44. Which molecule acts as a carrier for high-energy electrons during photosynthesis?

A. ATP

B. H2O

C. NADP+

D. CO2

45. How is the Calvin cycle different from the light-dependent reactions?

A. It takes place in chloroplasts.

B. It takes place in the stroma.

C. It requires light.

D. It takes place in the thylakoid membrane

46. Oxygen produced during the light-dependent reaction is .

A. used in the Calvin cycle to make sugar

B. joined with the NADPH to make water

C. is released into the atmosphere

D. None of these, oxygen is NOT produced by the light-dependent reaction

47. How does NADP+ become NADPH? Where/when does this occur?

MODIFIED TRUE or FALSE

Circle T if the statement is TRUE. Circle F if the statement is FALSE and use the blank provided to correct the underlined word/phrase.

48. T F Increasing light intensity decreases the rate of photosynthesis.

49. T F Carbon dioxide molecules from the atmosphere enter the light-dependent reactions.

50. T F Photosynthesis uses energy from ATP and high energy electrons from NADPH produced in the light-dependent reactions to make glucose in the Calvin cycle.

51. T F The light-dependent reaction produces ATP, NADPH, and carbon dioxide.

52. T F ATP synthase spins like a turbine as H+ ions pass through it to generate ATP.

53. T F Electrons are energized twice during photosynthesis.

54. USE THE LETTERS IN THE DIAGRAM AT THE LEFT TO IDENTIFY:

stroma

thylakoid

granum

55. COLOR THE DIAGRAM AS DESCRIBED:

Color the energy from sunlight

Color the two places where light energy enters the reactions

Color the hydrogen ions

Color the electrons

Color the thylakoid membrane

56. On which side of the membrane would you find the STROMA? A or B

57. On which side of the membrane is the INNER THYLAKOID SPACE? A or B

58. Where does ATP formation happen?

59. Add an equation to the diagram in the correct location that shows the formation of ATP from ADP.

60. USE WORDS FROM THE WORD BANK TO FILL IN THE CHART COMPARING AND CONTRASTING THE LIGHT-DEPENDENT REACTIONS AND THE CALVIN CYCLE

Word Bank: in stroma, in thylakoid membrane, O2, ATP, CO2, H2O, NADPH, Requires light, Doesn't require light, SUGARS (glucose)

LIGHT-DEPENDENT REACTIONS CALVIN CYCLE
LOCATION
REACTANTS
PRODUCTS
LIGHT?

THINK ABOUT IT

61. Which of the graphs would best represent the effect of temperature on the rate of photosynthesis?

EXPLAIN YOUR THINKING.

62. Which of the graphs would best represent the effect of light intensity on the rate of photosynthesis?

EXPLAIN YOUR THINKING.

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What the Photosynthesis Review Worksheet Is

The Photosynthesis Review Worksheet is an instructional assessment designed to evaluate students' grasp of photosynthesis fundamentals, including light reactions, Calvin cycle concepts, reactants and products, and related vocabulary. It combines diagrams for labeling, multiple-choice diagnostics, short-answer prompts, and data interpretation exercises to test conceptual understanding and analytical skills. Teachers use it as a unit review, formative assessment, homework, or substitute activity. When delivered electronically, the worksheet can be completed and returned through a learning management system or secure e-signature-enabled workflow that respects student privacy protections.

Why This Worksheet Helps Learning Outcomes

A focused review worksheet clarifies learning targets, exposes common misconceptions, and provides measurable practice that supports retrieval practice and spaced review. It helps teachers prioritize remediation and yields data-driven insights into class-wide and individual mastery.

Why This Worksheet Helps Learning Outcomes

Who Prepares, Distributes, and Completes It

Teachers, curriculum coordinators, and instructional coaches prepare and distribute the Photosynthesis Review Worksheet for classroom use and assessment.

  • High school biology teachers who align content to standards and assess conceptual mastery.
  • Middle school science teachers using scaffolded items to bridge vocabulary and experimental reasoning.
  • Students, tutors, and homeschool educators using the worksheet for practice and formative feedback.

Students, tutors, and substitute teachers complete or administer the worksheet; aggregated results inform lesson planning and student support strategies.

Essential Parts of a Professional Review Worksheet

A clear, well-structured worksheet balances diagnostic questions with practice items and teacher-facing guidance so it serves instruction and assessment efficiently.

Title & Instructions

Concise title, learning objective summary, and step-by-step instructions so students understand scope, time expectations, and how to record answers.

Identification Block

Fields for student name, ID, class/period, and date so teacher records and gradebooks can match work to the correct student.

Diagram / Labeling

High-quality chloroplast or leaf diagrams with clear labeling tasks evaluating organelle function and reactant/product locations.

Multiple-Choice Items

Distractors that target known misconceptions and measure conceptual recall across light-dependent and light-independent processes.

Short-Answer & Data

Open-response prompts and simple data interpretation tasks to assess reasoning, calculations (e.g., ATP/NADPH roles), and explanation quality.

Teacher Notes & Answer Key

Scoring rubric, model answers, and remediation tips to standardize grading and guide targeted reteaching.

Required Identification and Administrative Fields

Student Name: Full legal name
Student ID: School-assigned identifier
Class / Period: Course code or period
Date: MM/DD/YYYY
Teacher Name: Instructor of record
Score / Grade: Numeric or letter grade

How Students Should Complete the Worksheet

Follow these sequential steps to complete the Photosynthesis Review Worksheet accurately and return it for grading.

  • 01
    Read Instructions: Confirm time limit, allowed resources, and submission method.
  • 02
    Fill ID Fields: Enter name, student ID, class, and date exactly.
  • 03
    Answer Items: Complete diagrams, multiple-choice, and short answers clearly.
  • 04
    Submit Work: Return via LMS upload or approved e-submission.

Configuring an Online Worksheet Workflow

Key configuration items to set before publishing the worksheet in an LMS or e-form builder.

Field Configuration
Identification fields Set as required with validation
Question types Mix of auto-graded and free-response
Auto-grading rules Define correct answers and partial credit
Submission destination LMS assignment, cloud folder, or teacher inbox

Digital Delivery and Authentication Considerations

Choose file formats, integrations, and authentication that match district policies and student access capabilities.

  • Accepted formats: PDF, DOCX, and fillable HTML
  • Integrations: Google Workspace, Microsoft 365, and LMS platforms
  • Authentication: Email link or LMS sign-in for student identity

Ensure the platform supports role-based access, audit logging for submissions, and compatibility with district privacy rules such as FERPA; consider two-factor or LMS authentication for higher-assurance identity verification.

Where and How to Submit Completed Worksheets

Typical submission paths for student-completed worksheets and how teachers receive them for grading.

  • Teacher Upload: Teacher posts the worksheet to the LMS assignment area.
  • Student Submission: Students upload completed files or complete in-platform.
  • LMS Return: Grades and feedback returned through the LMS gradebook.
  • Cloud Archive: Submissions may be archived in Google Drive or district storage.

Typical Timelines and Grading Expectations

Set clear dates so students know deadlines and teachers can plan grading windows and feedback cycles.

Assignment Date:

Date worksheet is assigned to students.

Submission Due Date:

Date and time submissions are due; enforce late policy.

Grading Window:

Suggested 3–7 school days for teacher grading turnaround.

Correction Period:

Optional rework window for revisions and reteaching.

Record Update:

Update gradebook once grading is complete.

Common Preparation and Completion Errors to Avoid

  • Not providing a clear time estimate or allowed resources, which confuses students and increases late submissions.
  • Missing or inconsistent identification fields, causing mismatches when importing grades into the gradebook.
  • Unclear diagram labels or low-contrast images that prevent students with visual impairments from completing tasks.
  • Relying exclusively on free-response grading without a rubric, which increases subjectivity and grading time.

Consequences of Incorrect or Incomplete Worksheets

Grade Impact: Lower score or incomplete credit
Record Mismatch: Failure to match student to submission
Academic Integrity: Plagiarism review or disciplinary referral
Accessibility Risk: Noncompliance with accommodation needs
Privacy Exposure: Improper storage can breach FERPA
Data Loss: Missing backups prevent later review

Practical Classroom Scenarios

Two brief examples show how the worksheet supports instruction across common classroom situations.

Middle School Review

A teacher assigns the worksheet before a unit test to identify weak vocabulary recall.

  • Results highlight common misconceptions about stomata.
  • Teacher uses aggregated item scores to reteach targeted topics and provides small-group remediation during the following week.

AP Biology Practice

An AP teacher uses the worksheet as a timed formative assessment for reaction pathway analysis.

  • Students complete diagram labeling and short explanations.
  • Teacher analyzes free-response patterns to refine lab activities and posts exemplar answers with feedback in the LMS.

eSignature Vendor Comparison for Electronic Worksheets

Common e-signature options for schools and districts; compare basic pricing and core features relevant to secure worksheet distribution and signing.

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Starting Price $8/user/mo $15/user/mo $14/user/mo $19/user/mo $15/user/mo
Free Trial 7-day free trial Varies Varies Varies Varies
Bulk Send Yes Yes Yes Yes Varied
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No
Envelope Cap No cap 100 envelopes/user/year Varies Varies Varies

Frequently Asked Questions About the Worksheet

Answers to common operational and compliance questions teachers and administrators ask about distributing and collecting the worksheet.


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