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General Biology Knowledge Test

Biology

A collection of factual questions covering botany, zoology, genetics, and cellular biology.

science nature education

18 Questions Medium Ages 12+ Nov 6, 2026

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About this Study Set

This study set covers Biology through 18 practice questions. A collection of factual questions covering botany, zoology, genetics, and cellular biology. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 18 questions from the General Biology Knowledge Test study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organelle is often referred to as the powerhouse of the cell?

A Nucleus
B Mitochondrion
C Ribosome
D Golgi apparatus

2 What is the primary sugar produced during photosynthesis?

A Glucose
B Fructose
C Lactose
D Sucrose

3 Which part of the human brain is responsible for balance and coordination?

A Cerebrum
B Hypothalamus
C Cerebellum
D Brainstem

4 How many chromosomes are typically found in a standard human somatic cell?

A 23
B 46
C 48
D 92

5 Which blood cells are primarily responsible for fighting infections?

A Red blood cells
B Platelets
C White blood cells
D Plasma cells

6 What is the chemical symbol for the main gas released as a byproduct of photosynthesis?

A CO2
B N2
C O2
D H2O

7 Which class of animals are endothermic vertebrates characterized by having feathers?

A Reptilia
B Amphibia
C Mammalia
D Aves

8 Which pigment gives green plants their characteristic color?

A Carotenoid
B Chlorophyll
C Anthocyanin
D Xanthophyll

9 What is the process by which a cell divides to produce two genetically identical daughter cells?

A Meiosis
B Mitosis
C Fertilization
D Transcription

10 Which human organ is responsible for filtering waste products from the blood to produce urine?

A Liver
B Pancreas
C Kidney
D Spleen

11 What is the structural material that makes up the cell walls of fungi?

A Cellulose
B Chitin
C Starch
D Glycogen

12 Which base is found in RNA but not in DNA?

A Adenine
B Guanine
C Cytosine
D Uracil

13 What term describes an organism that produces its own food using sunlight?

A Heterotroph
B Autotroph
C Decomposer
D Carnivore

14 Which vessel carries oxygenated blood away from the heart to the rest of the body?

A Vein
B Capillary
C Artery
D Venule

15 What is the largest organ in the human body?

A Liver
B Brain
C Skin
D Lungs

16 In genetics, what term describes the physical appearance of an organism?

A Genotype
B Phenotype
C Allele
D Mutation

17 Which group of plants produces 'naked seeds' often found in cones?

A Angiosperms
B Bryophytes
C Gymnosperms
D Pteridophytes

18 What is the scientific name for the collarbone?

A Scapula
B Clavicle
C Femur
D Patella

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