AP Biology Unit 2B: Membrane Transport, Tonicity & Cell Size — practice questions — page 4

Explore 93 free Unit 2B: Membrane Transport, Tonicity & Cell Size questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 2B: Membrane Transport, Tonicity & Cell Size questions and exercises with answers

Showing questions 91–93 of 93.

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 →Aerobic respiration overall equation.Read the answer and worked solution →

Worked practice questions

How many turns of the Calvin cycle are needed to produce one three-carbon G3P for export?

Five
Nine
Three
Seven

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Correct answer: C. Three

1. One CO2 enters per turn. 2. Three turns net one G3P. 3. Six turns make a glucose. _Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._

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Cacti conserve water by fixing and storing CO2 temporarily at:

Noon
Dawn
Dusk
Night

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Correct answer: D. Night

1. Opening stomata at night loses less water. 2. Cacti store CO2 at night. 3. By day stomata stay closed. _Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._

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Aerobic respiration overall equation.

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Missing parts

Answer
O₂
Choices
1. O₂
2. CO₂
3. N₂
Answer
CO₂
Choices
1. CO₂
2. O₂
3. H₂
Answer
H₂O
Choices
1. H₂O
2. CH₄
3. NH₃

Complete the statement

C₆H₁₂O₆ + 6{0} → 6{1} + 6{2} + ATP

Instructions

Pick reactants and products.

_Source: syllabus Science, Ch 5 'Life Processes' §5.1.5_

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