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    - Acids & Bases 53
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  - Organic Chemistry
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  - Analytical Chemistry
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    - Air Pollution 5
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  - Industrial Chemistry
    - Petrochemicals 5
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    - Food Chemistry 6
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  - Nuclear Chemistry
    - Chemistry Radioactivity 7
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    - Chemistry Half Life 5
    - Radioisotopes 5
    - Nuclear Energy 5
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  - Polymer Chemistry
    - Polymerization 5
    - Addition Polymers 5
    - Condensation Polymers 5
    - Copolymers 5
    - Biodegradable Polymers 5
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    - Elastomers 4
    - Thermoplastics 5
    - Thermosetting Polymers 5
    - Polymer Properties 5
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  - Theoretical Chemistry
    - Quantum Chemistry 5
    - Molecular Modeling 16
    - Computational Chemistry 5
    - Statistical Mechanics 5
    - Chemical Thermodynamics 43
    - Reaction Dynamics 81
    - Electronic Structure 100
    - Molecular Dynamics 19
    - Spectroscopy Theory 5
  - Medicinal Chemistry
    - Drug Design 4
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    - Pharmacodynamics 5
    - Drug Metabolism 5
    - Enzyme Inhibition 5
    - Receptor Binding 5
    - Structure Activity 5
    - Prodrugs 5
    - Natural Products 5
    - Peptidomimetics 5
  - Green Chemistry
    - Sustainable Design 4
    - Renewable Resources 4
    - Waste Prevention 5
    - Energy Efficiency 5
    - Catalysis 4
    - Biodegradable Materials 5
    - Green Synthesis 5
    - Solvent Reduction 5
    - Atom Economy 5
    - Life Cycle Analysis 5
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  - Materials Chemistry
    - Crystal Structure 5
    - Band Theory 5
    - Materials Polymers 4
    - Ceramics 5
    - Composites 5
    - Nanomaterials 6
    - Biomaterials 5
    - Corrosion 5
    - Alloys 5
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    - Magnetic Materials 5
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- Biology
  - Cell Biology
    - Cell Theory 8
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    - Cell Organelles 11
    - Cell Membrane 24
    - Cell Wall 5
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    - Nucleus 5
    - Mitochondria 5
    - Chloroplasts 5
    - Ribosomes 5
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    - Cell Division 32
    - Cell Cycle 18
    - Transport Mechanisms 28
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  - Genetics
    - DNA Structure 5
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    - Gene Expression 8
    - Biological Genetic Code 5
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    - Transcription 5
    - Translation 5
    - Mutation 4
    - Mendelian Inheritance 5
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    - Genetic Disorders 7
    - Genetic Mapping 5
    - Genetic Engineering 5
    - Genomics 5
    - Epigenetics 5
  - Evolution
    - Origin of Life 9
    - Theories of Evolution 5
    - Natural Selection 6
    - Variation 5
    - Adaptation 5
    - Speciation 5
    - Fossil Record 5
    - Comparative Anatomy 12
    - Molecular Evidence 8
    - Human Evolution 5
    - Coevolution 5
    - Extinction 5
  - Ecology
    - Ecosystem 36
    - Biomes 24
    - Population Ecology 11
    - Community Ecology 5
    - Food Chains 16
    - Food Webs 5
    - Ecological Energy Flow 5
    - Nutrient Cycles 13
    - Biodiversity 28
    - Ecological Conservation 46
    - Habitat 5
    - Succession 5
    - Ecological Adaptation 11
    - Human Impact 5
    - Ecological Climate Change 5
  - Human Anatomy & Physiology
    - Skeletal System 116
    - Muscular System 67
    - Nervous System 118
    - Endocrine System 76
    - Circulatory System 89
    - Respiratory System 44
    - Digestive System 44
    - Excretory System 10
    - Reproductive System 120
    - Immune System 11
    - Integumentary System 20
    - Sensory Organs 54
  - Botany Plant Biology
    - Plant Anatomy 38
    - Plant Morphology 5
    - Plant Physiology 68
    - Photosynthesis 52
    - Plant Reproduction 22
    - Plant Growth 5
    - Plant Hormones 5
    - Plant Taxonomy 43
    - Plant Ecology 19
    - Plant Pathology 6
    - Economic Botany 5
    - Seed Biology 5
    - Plant Genetics 6
    - Plant Adaptations 5
  - Zoology Animal Biology
    - Classification 38
    - Porifera 6
    - Cnidaria 6
    - Platyhelminthes 5
    - Nematoda 6
    - Annelida 7
    - Arthropoda 12
    - Mollusca 5
    - Echinodermata 6
    - Chordata 5
    - Fish 76
    - Amphibians 10
    - Reptiles 14
    - Birds 5
    - Mammals 106
    - Anatomy 17
    - Physiology 23
    - Reproduction 26
    - Development 6
    - Behavior 63
  - Microbiology
    - Microbial Structure 5
    - Bacteriology 33
    - Virology 33
    - Mycology 16
    - Parasitology 53
    - Microbial Genetics 5
    - Microbial Physiology 5
    - Microbial Ecology 11
    - Pathogenic Microbiology 18
    - Microbial Biotechnology 5
    - Food Microbiology 5
    - Industrial Microbiology 5
    - Environmental Microbiology 5
  - Biotechnology
    - Bio Genetic Engineering 5
    - Recombinant DNA 5
    - Cloning 5
    - PCR 5
    - Gel Electrophoresis 5
    - DNA Sequencing 5
    - Gene Therapy 5
    - CRISPR 5
    - Stem Cells 5
    - Bioreactors 5
    - Fermentation 5
    - Bioinformatics 5
    - GMOs 5
    - Proteomics 5
    - Metabolomics 5
  - Molecular Biology
    - Biological Biomolecules 8
    - Carbohydrates 6
    - Biochemical Lipids 9
    - Bio Proteins 5
    - Bio Enzymes 21
    - Bio Nucleic Acids 5
    - Biochemical Vitamins 5
    - Bio Minerals 6
    - Bio Metabolism 60
    - Cellular Respiration 21
    - Nitrogen Metabolism 5
    - Bio Hormones 32
    - Signal Transduction 5
  - Immunology
    - Innate Immunity 5
    - Adaptive Immunity 5
    - Antigens 6
    - Antibodies 4
    - Lymphatic System 6
    - B Cells 5
    - T Cells 5
    - Immune Response 3
    - Cytokines 5
    - Vaccination 5
    - Immunodeficiency 5
    - Hypersensitivity 5
    - Autoimmunity 5
    - Transplant Immunology 5
    - Tumor Immunology 5
  - Developmental Biology
    - Gametogenesis 5
    - Fertilization 9
    - Cleavage 6
    - Gastrulation 5
    - Organogenesis 5
    - Metamorphosis 6
    - Regeneration 5
    - Growth 4
    - Aging 5
- Earth & Space Science
  - Geology
    - Minerals 32
    - Rocks 27
    - Geological Rock Cycle 17
    - Plate Tectonics 43
    - Geological Volcanoes 25
    - Geological Earthquakes 5
    - Weathering 16
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    - Soil 5
    - Fossils 5
    - Geological Time 6
    - Geomorphology 12
    - Geological Groundwater 5
    - Natural Resources 6
  - Meteorology
    - Metrological Atmosphere 5
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    - Air Pressure 5
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    - Weather Forecasting 5
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  - Oceanography
    - Ocean Basins 5
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    - Marine Life 47
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  - Climate Science
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    - Hydro Water Cycle 5
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  - Natural Disasters
    - Earthquakes 5
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  - Earth Systems & Cycles
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    - Orbital Motion 5
    - Kepler Laws 5
    - Newton Laws 5
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12th Grade Biology Quizzes, Questions & Answers

Recent Biology Quizzes

HUMAN BIOLOGY AS A quiz on blood clotting and clotting factors.

Questions: 9 | Attempts: 3423 | Last updated: Mar 21, 2025

Sample Question
What is the order of clotting?

Fibrin, fibrinogen, thrombin, prothrombin, thromboplastin

Prothrombin, thromboplastin, thrombin, fibrin, fibrinogen

Thromboplastin, thrombin, prothrombin, fibrin, fibrinogen

Thromboplastin, prothrombin, thrombin, fibrinogen, fibrin

Synaptic Transmission Study Question Bank

Explore the mechanics of synaptic transmission with our question bank. This quiz covers key topics such as EPSPs, acetylcholinesterase inhibition at neuromuscular junctions, ion permeability during EPSPs, and features of synaptic...

Questions: 16 | Attempts: 2037 | Last updated: Mar 21, 2025

Sample Question
Sequential excitatory postsynaptic potentials (EPSPs) from a given presynaptic terminal will be most effective at bringing a postsynaptic neuron to threshold when:

Inhibitory inputs are present on the soma

EPSPs are arriving very close together in time

EPSPs are arriving from presynaptic cells that form synapses at a great distance from the axon hillox

Individual excitatory inputs have a low frequency of activity, enabling the membrane to recover from inactivation between EPSPs

Block 2 Biochem Clotting System

This quiz, titled 'Block 2 Biochem Clotting System', explores key aspects of the blood clotting process. It assesses knowledge on platelet function, coagulation pathways, and the role of various proteins in hemostasis, making it...

Questions: 37 | Attempts: 563 | Last updated: Mar 21, 2025

Sample Question
Which of the following contains exposed collagen to which platelets bind during vascular injury?

Endothelial cells

Subendothelial cells

Platelets

Clotting factors

Von Willebrand Factor

Blood-block 2 Sem 1

The 'Blood-block 2 Sem 1' quiz focuses on the cellular components of blood, assessing knowledge on proteins like Spectrin, cell types such as Lymphocytes, and the origins of various blood cells. It's designed for learners to...

Questions: 11 | Attempts: 444 | Last updated: Mar 21, 2025

Sample Question
Which of the following proteins associated with the erythrocyte plasma membrane is responsible for maintaining the cell's biconcave disk shape?

Hemoglobin (Hb)

HbA2

Porphyrin

Spectrin

A-Actinin

Chapter 3: Right Brain/Left Brain Cerebral Laterality

Explore the structural and functional aspects of the human brain in 'Chapter 3: Right Brain\/Left Brain Cerebral Laterality'. This quiz assesses knowledge on cerebral cortex layers, brain hemispheres connectivity, and the impact...

Questions: 10 | Attempts: 129 | Last updated: Mar 7, 2025

Sample Question
How many layers of neurons does the cerebrum cortex have?

2

10

6

4

Function Of Central Nervous System

Explore the central nervous system's roles, including medulla functions, neurotransmitter-disease links, and neuron actions. This quiz assesses understanding of neurological functions, enhancing knowledge crucial for advanced...

Questions: 14 | Attempts: 115 | Last updated: Mar 20, 2025

Sample Question
Neurons and glial cells are the two main types of cells in the nervous system.

True

False

Water Potential, Diffusion and Active Transport

A quiz on water potential, diffusion, active transport and other cellular transport. HUMAN BIOLOGY AS LEVEL

Questions: 17 | Attempts: 985 | Last updated: Mar 19, 2025

Sample Question
What can not diffuse through the phospholipid bilayer?

Small, lipid-soluble molecules

Molecules that are soluble in water

Charged particles such as ions

Histology Fxn and Location

This quiz titled 'Histology fxn and location' assesses knowledge on various epithelial tissues, focusing on their functions, secretions, and anatomical locations. It's designed for learners to understand tissue roles in human...

Questions: 22 | Attempts: 3767 | Last updated: Mar 21, 2025

Sample Question
Which tissue allows passage of materials by diffusion and filtration; secrets lube in serosae and is located in the air sacs of lungs, lining of the heart, blood vessels and lymph vessels.

Simple Squamous epi

Simple cuboidal epi

Neurotransmitters and Receptors

If you do poorly, it's probably my questions. :) Good luck!

Questions: 16 | Attempts: 2254 | Last updated: Mar 21, 2025

Sample Question
A receptor that has a direct, mechanical response to a neurotransmitter binding to it is..

Ionotropic

Metabotropic

A.P. Biology Chapter 1 (Introduction To Biology)

This quiz is to test your knowledge on Chapter 1 of A.P. Biology. Chapter 1 will be on Test #1, which fill feature Chapters 1-4. As such, it is suggested that you also take the quizzes for Chapters 2-4 if you are using this to...

Questions: 44 | Attempts: 9543 | Last updated: Jun 5, 2025

Sample Question
____ is the unifying concept of biology.

Life

Growth

Genetics

Evolution

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