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Biology: Advanced Topics Practice Tests

These Grade 11 Science practice tests examine cell biology, enzymes, cell division, molecular genetics, evolution, physiology, homeostasis, ecology, biodiversity, and experimental analysis.

Skills covered

  • Connecting cell structures, membranes, enzymes, osmosis, mitosis, and cell-cycle regulation to function
  • Explaining DNA replication, transcription, translation, mutations, gene regulation, and inheritance evidence
  • Applying natural selection, genetic drift, gene flow, Hardy-Weinberg ideas, speciation, and phylogenetic reasoning
  • Analyzing homeostasis, feedback, immunity, circulation, respiration, nervous systems, and endocrine regulation
  • Interpreting energy flow, population limits, biodiversity, biomagnification, controls, uncertainty, and biological data

How to use these practice tests

Identify the biological scale first, from molecule and cell to organism, population, or ecosystem. Then connect the evidence to the relevant mechanism and distinguish correlation from a supported causal explanation.

For more Grade 11 Science practice, return to the Grade 11 Science category.

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Grade 11 Biology Advanced Topics Practice Tests

Practice Grade 11 Science questions about cell biology, molecular genetics, evolution, physiology, ecology, homeostasis, and biological data analysis.

Choose the best answer. Identify the biological scale, connect structure to function, use evidence, and distinguish observations from supported conclusions.

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

What is the primary source of energy for most ecosystems?

Please select an answer first.

Correct answer: A

The correct answer is Sunlight.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Photosynthetic producers capture solar energy and convert it into chemical energy that supports most food webs.
  3. Check evidence and scale: The correct answer is Sunlight.

Photosynthetic producers capture solar energy and convert it into chemical energy that supports most food webs.

2. QuestionMultiple choice

What is a trophic level?

Please select an answer first.

Correct answer: B

The correct answer is A feeding position in a food chain or web.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Producers, primary consumers, and higher consumers occupy successive trophic levels based on energy transfer.
  3. Check evidence and scale: The correct answer is A feeding position in a food chain or web.

Producers, primary consumers, and higher consumers occupy successive trophic levels based on energy transfer.

3. QuestionMultiple choice

Why is less energy available at higher trophic levels?

Please select an answer first.

Correct answer: C

The correct answer is Energy is used for metabolism and lost as heat at each transfer.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Only a fraction of consumed energy becomes new biomass; much is used in metabolism or lost as heat and waste.
  3. Check evidence and scale: The correct answer is Energy is used for metabolism and lost as heat at each transfer.

Only a fraction of consumed energy becomes new biomass; much is used in metabolism or lost as heat and waste.

4. QuestionMultiple choice

What is the role of decomposers?

Please select an answer first.

Correct answer: D

The correct answer is Breaking down organic matter and returning nutrients to the ecosystem.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Fungi and bacteria decompose dead material and release nutrients that can be reused by producers.
  3. Check evidence and scale: The correct answer is Breaking down organic matter and returning nutrients to the ecosystem.

Fungi and bacteria decompose dead material and release nutrients that can be reused by producers.

5. QuestionMultiple choice

What does carrying capacity represent?

Please select an answer first.

Correct answer: A

The correct answer is The largest population an environment can sustain over time.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Carrying capacity depends on limiting resources and conditions such as food, space, disease, and predation.
  3. Check evidence and scale: The correct answer is The largest population an environment can sustain over time.

Carrying capacity depends on limiting resources and conditions such as food, space, disease, and predation.

6. QuestionMultiple choice

What is a density-dependent limiting factor?

Please select an answer first.

Correct answer: B

The correct answer is A factor whose effect changes with population density.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Competition, disease, and predation often intensify as individuals become more crowded.
  3. Check evidence and scale: The correct answer is A factor whose effect changes with population density.

Competition, disease, and predation often intensify as individuals become more crowded.

7. QuestionMultiple choice

What is biodiversity?

Please select an answer first.

Correct answer: C

The correct answer is The variety of genes, species, and ecosystems in a region or on Earth.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Biodiversity includes variation at genetic, species, and ecosystem levels.
  3. Check evidence and scale: The correct answer is The variety of genes, species, and ecosystems in a region or on Earth.

Biodiversity includes variation at genetic, species, and ecosystem levels.

8. QuestionMultiple choice

What is biomagnification?

Please select an answer first.

Correct answer: D

The correct answer is Increasing concentration of a persistent substance at higher trophic levels.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Persistent pollutants can accumulate in organisms and reach greater concentrations in predators that consume many contaminated prey.
  3. Check evidence and scale: The correct answer is Increasing concentration of a persistent substance at higher trophic levels.

Persistent pollutants can accumulate in organisms and reach greater concentrations in predators that consume many contaminated prey.

9. QuestionMultiple choice

What is the independent variable in an experiment testing fertilizer effects on plant growth?

Please select an answer first.

Correct answer: A

The correct answer is The fertilizer treatment or amount deliberately changed.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: The treatment is manipulated, while plant growth is measured as the dependent response.
  3. Check evidence and scale: The correct answer is The fertilizer treatment or amount deliberately changed.

The treatment is manipulated, while plant growth is measured as the dependent response.

10. QuestionMultiple choice

What makes a biological conclusion stronger?

Please select an answer first.

Correct answer: B

The correct answer is Repeated data, appropriate controls, clear variables, and results consistent with uncertainty.

  1. Identify the biological system: Determine the cell process, inheritance pattern, physiological system, population, or ecosystem being described.
  2. Apply the biological principle: Reliable conclusions depend on sound design, sufficient data, controls, uncertainty, and an appropriate interpretation of evidence.
  3. Check evidence and scale: The correct answer is Repeated data, appropriate controls, clear variables, and results consistent with uncertainty.

Reliable conclusions depend on sound design, sufficient data, controls, uncertainty, and an appropriate interpretation of evidence.

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