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Advanced Biology Practice Tests

These Grade 12 Science practice tests develop Advanced Biology skills through questions on cells, molecules, genetics, evolution, ecology, physiology, and experimental design.

Skills covered

  • Explaining ATP, enzymes, membranes, osmosis, organelles, gene expression, cell-cycle regulation, and homeostasis
  • Analyzing inheritance, DNA replication, mutation, PCR, gel electrophoresis, gene editing, epigenetics, and pedigrees
  • Applying natural selection, genetic drift, speciation, common ancestry, population models, energy flow, cycles, symbiosis, and biodiversity
  • Connecting nervous, endocrine, immune, renal, respiratory, circulatory, and muscular systems to physiological regulation
  • Evaluating controls, variables, replication, statistics, correlation, sample size, graphs, ethics, limitations, and conclusions

How to use these practice tests

Identify the biological process, then connect the structure, mechanism, and outcome. For data questions, distinguish what the evidence supports from claims that require additional experiments.

For more Grade 12 Science practice, return to the Grade 12 Science category.

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Grade 12 Advanced Biology Practice Tests

Practice Grade 12 Science questions about cell biology, molecular biology, genetics, evolution, ecology, physiology, and experimental design.

Choose the best answer. Apply the biological principle, connect structure to function, and interpret evidence without extending conclusions beyond the data.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is an action potential?

Please select an answer first.

Correct answer: A

The correct answer is A rapid electrical change that travels along a neuron’s membrane.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: An action potential is produced by changes in membrane ion permeability and transmits information along the neuron.
  3. Connect structure and function: The correct answer is A rapid electrical change that travels along a neuron’s membrane.

An action potential is produced by changes in membrane ion permeability and transmits information along the neuron.

2. QuestionMultiple choice

What is the role of insulin?

Please select an answer first.

Correct answer: B

The correct answer is It helps lower blood glucose by promoting uptake and storage of glucose.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Insulin promotes glucose uptake by cells and storage as glycogen or other forms after blood glucose rises.
  3. Connect structure and function: The correct answer is It helps lower blood glucose by promoting uptake and storage of glucose.

Insulin promotes glucose uptake by cells and storage as glycogen or other forms after blood glucose rises.

3. QuestionMultiple choice

What do antibodies do in adaptive immunity?

Please select an answer first.

Correct answer: C

The correct answer is They bind specific antigens and help target pathogens or infected cells.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Antibodies recognize particular molecular features and can neutralize targets or mark them for immune removal.
  3. Connect structure and function: The correct answer is They bind specific antigens and help target pathogens or infected cells.

Antibodies recognize particular molecular features and can neutralize targets or mark them for immune removal.

4. QuestionMultiple choice

What is a major function of the nephron?

Please select an answer first.

Correct answer: D

The correct answer is Filtering blood and adjusting the composition of urine.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Nephrons filter fluid and selectively reabsorb or secrete substances to regulate water, ions, and waste.
  3. Connect structure and function: The correct answer is Filtering blood and adjusting the composition of urine.

Nephrons filter fluid and selectively reabsorb or secrete substances to regulate water, ions, and waste.

5. QuestionMultiple choice

What occurs in the alveoli?

Please select an answer first.

Correct answer: A

The correct answer is Gas exchange between inhaled air and blood.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Thin alveolar surfaces and nearby capillaries allow oxygen and carbon dioxide to diffuse along concentration gradients.
  3. Connect structure and function: The correct answer is Gas exchange between inhaled air and blood.

Thin alveolar surfaces and nearby capillaries allow oxygen and carbon dioxide to diffuse along concentration gradients.

6. QuestionMultiple choice

What is the main direction of blood flow through the pulmonary circuit?

Please select an answer first.

Correct answer: B

The correct answer is From the right side of the heart to the lungs and back to the left side.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: The pulmonary circuit carries oxygen-poor blood to the lungs and returns oxygen-rich blood to the left side of the heart.
  3. Connect structure and function: The correct answer is From the right side of the heart to the lungs and back to the left side.

The pulmonary circuit carries oxygen-poor blood to the lungs and returns oxygen-rich blood to the left side of the heart.

7. QuestionMultiple choice

What is negative feedback?

Please select an answer first.

Correct answer: C

The correct answer is A response that counteracts a change and helps return a variable toward a set range.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Negative feedback stabilizes internal conditions by reducing deviations from a regulated range.
  3. Connect structure and function: The correct answer is A response that counteracts a change and helps return a variable toward a set range.

Negative feedback stabilizes internal conditions by reducing deviations from a regulated range.

8. QuestionMultiple choice

What is released into a synaptic cleft?

Please select an answer first.

Correct answer: D

The correct answer is Neurotransmitter molecules.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: A presynaptic neuron releases neurotransmitters that bind receptors on the next cell.
  3. Connect structure and function: The correct answer is Neurotransmitter molecules.

A presynaptic neuron releases neurotransmitters that bind receptors on the next cell.

9. QuestionMultiple choice

What is the role of actin and myosin in skeletal muscle?

Please select an answer first.

Correct answer: A

The correct answer is Their interaction produces contraction through sliding of protein filaments.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Myosin motors pull on actin filaments, shortening the functional units of the muscle fiber.
  3. Connect structure and function: The correct answer is Their interaction produces contraction through sliding of protein filaments.

Myosin motors pull on actin filaments, shortening the functional units of the muscle fiber.

10. QuestionMultiple choice

What is the function of a hormone receptor?

Please select an answer first.

Correct answer: B

The correct answer is It detects a particular chemical signal and initiates a cellular response.

  1. Identify the biology concept: Determine whether the question concerns cells, molecules, genetics, evolution, ecology, physiology, or experimental design.
  2. Apply the biological principle: Receptors provide specificity by binding signals and activating pathways appropriate to the target cell.
  3. Connect structure and function: The correct answer is It detects a particular chemical signal and initiates a cellular response.

Receptors provide specificity by binding signals and activating pathways appropriate to the target cell.

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