Start learning →

AP Biology Cellular Respiration — practice questions — page 2

Explore 59 free Cellular Respiration questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Cellular Respiration with Quill →

Cellular Respiration questions and exercises with answers

Showing questions 31–59 of 59.

Bacteria at a deep sea vent make sugars using energy from inorganic chemicals. They are:Read the answer and worked solution →Photosynthesis powers what share of Earth's ecosystems?Read the answer and worked solution →In leaves, most photosynthesis occurs in the middle cell layer called the:Read the answer and worked solution →Gas exchange in a leaf occurs through small regulated openings called:Read the answer and worked solution →Each stoma is flanked by cells that open and close it by swelling or shrinking, called:Read the answer and worked solution →Stacked disc-shaped structures inside a chloroplast where chlorophyll is embedded are:Read the answer and worked solution →A stack of thylakoids is called a:Read the answer and worked solution →The liquid-filled space surrounding the grana, where the Calvin cycle occurs, is the:Read the answer and worked solution →The light-dependent reactions take place in the thylakoid membrane and produce:Read the answer and worked solution →Shorter wavelengths of light carry:Read the answer and worked solution →Which colour of visible light has the shortest wavelength and most energy?Read the answer and worked solution →Chlorophyll appears green because green light is:Read the answer and worked solution →Photosystems are numbered by:Read the answer and worked solution →In photosystem II, the electron lost by the reaction center is replaced by splitting:Read the answer and worked solution →The reaction center of photosystem II is called:Read the answer and worked solution →About what share of oxygen made in a leaf is used by its own mitochondria?Read the answer and worked solution →The flow of hydrogen ions through ATP synthase from the thylakoid lumen to the stroma is called:Read the answer and worked solution →The enzyme that catalyses the reaction between carbon dioxide and RuBP is:Read the answer and worked solution →RuBP, the molecule that starts the Calvin cycle, has how many carbon atoms?Read the answer and worked solution →How many turns of the Calvin cycle are needed to produce one three-carbon G3P for export?Read the answer and worked solution →Cacti conserve water by fixing and storing CO2 temporarily at:Read the answer and worked solution →Catch the light reaction partsRead the answer and worked solution →Pop the Calvin cycle playersRead the answer and worked solution →Run through photosynthesisRead the answer and worked solution →Slice the photosynthesis wordsRead the answer and worked solution →Light reactions or Calvin cycleRead the answer and worked solution →Sort pigments, structures and moleculesRead the answer and worked solution →Type the numberRead the answer and worked solution →Photosynthesis bingoRead the answer and worked solution →

Worked practice questions

Bacteria at a deep sea vent make sugars using energy from inorganic chemicals. They are:

  1. Saprotrophs
  2. Chemoautotrophs
  3. Photoautotrophs
  4. Heterotrophs
Show answer and solution

Correct answer: B. Chemoautotrophs

1. No sunlight reaches the vent. 2. Chemoautotrophs extract energy from inorganic compounds. 3. Tubeworms and crabs feed on them. _Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._

Open this question →

Photosynthesis powers what share of Earth's ecosystems?

  1. 99 percent
  2. 50 percent
  3. 75 percent
  4. 10 percent
Show answer and solution

Correct answer: A. 99 percent

1. A wolf eating a deer sits at the end of an energy path from the sun. 2. Photosynthesis powers 99 percent of ecosystems. 3. Heterotrophs use the stored carbohydrate energy. _Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._

Open this question →

In leaves, most photosynthesis occurs in the middle cell layer called the:

  1. Cuticle
  2. Mesophyll
  3. Epidermis
  4. Stomata
Show answer and solution

Correct answer: B. Mesophyll

1. Leaves have several cell layers. 2. The mesophyll holds most chloroplasts. 3. Gas exchange happens through stomata. _Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._

Open this question →

How to practise

  1. Choose a Cellular Respiration question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Gene ExpressionEcology and the BiosphereEvolution and the Origin of SpeciesDNA Structure and FunctionCell StructureBiological MacromoleculesMetabolismPhotosynthesis