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Grade 11 Photosynthesis & Respiration Worksheet with Answers

Grade 11 (US) · Year 12 (UK) · Class 11 (India) · Biology

Unit 4: EcologyEnergy FlowNGSS HS-LS1-5

Photosynthesis and cellular respiration: their inputs, outputs and where each takes place in the cell. This free high school worksheet has 16 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Photosynthesis & Respiration

Grade 11 · Biology

Score___ / 16

Name

Class

Date

Learning goal: Energy Flow · NGSS HS-LS1-5

Directions: This worksheet has 3 parts. Read the instructions at the start of each part.

Example

What gas do plants take in for photosynthesis?

Answer: carbon dioxide

Part A

Label the diagram. Use the words in the box.

Word bank

sunlightwatercarbon dioxideoxygen
glucose1234
  1. 1
  2. 2
  3. 3
  4. 4
Part B

Match each clue to the right word. Write the letter in the box.

  1. 5What sugar is made during photosynthesis?
  2. 6What pigment captures light energy for photosynthesis?
  3. 7What is produced by anaerobic respiration in human muscles?
  4. 8What energy-carrying molecule does cellular respiration produce?
  5. 9Which organelle is the site of cellular respiration in a cell?
  6. 10Where in a plant cell does photosynthesis take place?
  • AChloroplasts
  • BMitochondria
  • CATP
  • DLactic acid
  • EGlucose
  • FChlorophyll
Part C

Answer each question. Use full sentences where you can.

  1. 11

    What are the two stages of photosynthesis?

  2. 12

    Do plants carry out cellular respiration as well as photosynthesis?

  3. 13

    What do yeast produce during anaerobic respiration (fermentation)?

  4. 14

    Write the general word equation for photosynthesis.

  5. 15

    Write the general word equation for aerobic respiration.

  6. 16

    Name two factors that can limit the rate of photosynthesis.

★ Challenge corner for fast finishers

Why does your breath make fog on a cold window?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/biology/11/bio_photosynthesis_respiration

Answer key (click to show)
  1. 1.sunlight
  2. 2.carbon dioxide
  3. 3.oxygen
  4. 4.water
  5. 5.E — glucose
  6. 6.F — chlorophyll
  7. 7.D — lactic acid (and a little ATP)
  8. 8.C — ATP
  9. 9.B — the mitochondria
  10. 10.A — the chloroplasts
  11. 11.the light-dependent reactions and the Calvin cycle (light-independent reactions)
  12. 12.yes, all living cells respire
  13. 13.ethanol and carbon dioxide
  14. 14.carbon dioxide + water (+ light) → glucose + oxygen
  15. 15.glucose + oxygen → carbon dioxide + water (+ energy)
  16. 16.light intensity, carbon dioxide concentration or temperature (any two)
  17. ★water vapor in your breath condenses on the cold glass (challenge corner)

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