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AP BIOLOGY

1. Chemistry of Life

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2. Cells

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3. Cellular Energetics

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4. Cell Communication and Cell Cycle

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5. Heredity

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6. Gene Expression and Regulation

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7. Natural Selection

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8. Ecology

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AP Biology - Plants and Human Body Systems

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AP Biology - Laboratory review

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AP Biology - Diagnostic exam

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AP Biology - Practice Test 1

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AP Biology - Practice Test 2

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Quiz

3.3.4 Fermentation – Exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
Yeast cells consumed 10 glucose molecules in the absence of oxygen (alcoholic fermentation). How many net ATP molecules are expected?
40
360
20
10
2.
Using the table, how many times more ATP does aerobic respiration yield than fermentation per glucose?
About 2 times
About 18 times
About 36 times
About 9 times
3.
Which statement best describes Fermentation?
Anaerobic respiration by yeast, producing ethanol and carbon dioxide.
A large vessel for growing microorganisms under controlled conditions to make products.
A substance added to soil to supply mineral ions such as nitrate, phosphate and potassium.
Procedures that prevent contamination by unwanted microorganisms.
4.
Yeast fermentation produces
oxygen and water
ethanol and carbon dioxide
glucose
lactate only
5.
Yeast fermentation is used in:
Digestion
Making cheese only
Photosynthesis
Bread-making and brewing
6.
The main purpose of fermentation is to:
produce CO2
regenerate NAD+ so glycolysis can continue
make large amounts of ATP
use oxygen
7.
The main purpose of fermentation is to
regenerate NAD+ so glycolysis can continue
produce large amounts of ATP
release oxygen
make glucose
8.
Which statement best describes Lactic acid fermentation?
Pyruvate becomes lactic acid in muscle and some bacteria; regenerates NAD⁺.
Pyruvate becomes ethanol and CO₂ in yeast; the basis of baking and brewing.
Respiration without oxygen; only the 2 ATP from glycolysis.
Proteins in the inner mitochondrial membrane that pass electrons along and pump protons, driving most ATP synthesis.
9.
Which row of the table correctly describes lactic acid fermentation?
Row 1
Row 3
Row 4
Row 2
10.
The chart compares ATP yields. Why can a sprinter's muscles not rely on fermentation for long?
Dr Dabour Hub Academy - figure 1
It yields more ATP than aerobic
It needs more oxygen
It produces ethanol
It yields only 2 ATP per glucose and lactic acid builds up
11.
The main purpose of fermentation is to make large amounts of ATP. True or false?
True
False
True in yeast
True in muscle
12.
Alcoholic fermentation in yeast produces ethanol and CO₂. True or false?
False
False, it produces lactic acid
True only with oxygen
True
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Part of 3. Cellular Energetics — see every lesson and quiz in this unit.
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