Welcome to the ultimate biology quiz questions!
Test your biology knowledge across various exciting topics: from general biology to human anatomy, genetics, ecology, and more.
Ready? Let’s dive in!
Round 1: General Biology (Questions 1–15)
- What is the basic unit of life?
- Which organelle produces ATP?
- Which pigment is essential for photosynthesis?
- What gas do plants release during photosynthesis?
- Which macromolecule carries genetic instructions?
- What process divides one cell into two identical daughter cells?
- What type of organisms consume other organisms for energy?
- What are proteins made of?
- Which kingdom includes algae and amoebas?
- What do enzymes act as in biological reactions?
- Which structure surrounds and protects plant cells?
- What cellular organelle makes proteins?
- What sugar is found in RNA?
- Which scientist first coined the term “cell”?
- Which part of a plant anchors it into the ground?
Round 2: Human Anatomy & Physiology (Questions 16–30)
- Which organ is the largest internal organ in humans?
- How many chambers are there in the human heart?
- Which bone protects the brain?
- What blood type is known as the universal donor?
- Which mineral is primarily stored in bones?
- Where are red blood cells produced?
- What type of muscle is the heart composed of?
- Which cells are responsible for human skin color?
- What hormone regulates blood sugar levels?
- What is the main gas expelled during exhalation?
- Which part of the digestive system absorbs nutrients?
- Which cells detect colors in the human eye?
- What connects bone to bone?
- Which system regulates hormones in the body?
- Which artery carries oxygenated blood from the heart to the body?
Round 3: Genetics & Evolution (Questions 31–45)
- Who discovered the laws of inheritance?
- What is the shape of DNA?
- What term describes a change in DNA sequence?
- Which genetic disorder is caused by an extra chromosome 21?
- What are different versions of a gene called?
- What process creates gametes?
- What molecule transcribes DNA into proteins?
- Who proposed the theory of evolution by natural selection?
- What islands influenced Darwin’s evolutionary theories?
- What term describes an organism’s observable traits?
- What genetic material is inherited only from the mother?
- Which blood group is considered the universal recipient?
- What is the term for organisms with two identical alleles for a trait?
- What is the process by which RNA is synthesized from DNA?
- What do we call the full genetic makeup of an organism?
Round 4: Ecology & Environment (Questions 46–60)
- Which biome has the highest biodiversity on Earth?
- What term describes an animal that eats both plants and meat?
- What is the primary source of energy for ecosystems?
- What organisms break down dead matter and recycle nutrients?
- What do we call a species at risk of extinction?
- Which gas contributes most significantly to global warming?
- What type of relationship benefits both organisms involved?
- Which layer of Earth’s atmosphere contains the ozone layer?
- What is the largest ecosystem on Earth?
- What term describes water loss from plants into the atmosphere?
- What name is given to the maximum population size an environment can sustain?
- What is the name of organisms that produce their own food using chemical energy instead of sunlight?
- Which chemical element is primarily responsible for eutrophication in lakes and rivers?
- What term refers to the variety of life in a particular habitat?
- What ecological term describes the role and position of a species within its environment?
Conclusion
Congratulations! You’ve completed these extended biology quiz questions, covering a diverse range of fascinating topics. Whether for study, teaching, or friendly competition, these biology questions provide a fun way to explore biology in depth. Keep learning, and enjoy sharing your knowledge!
Happy quizzing!