30+ Fun & Educational Biology Riddles with Answers!
A perfect mix of easy and tricky biology puzzles designed to make learning about life science exciting.
Riddle: I beat silent all day life’s pump. What am I?
Answer: Heart
Riddle: I’m life’s block with DNA inside. What am I?
Answer: Cell
Riddle: I make food for plants with the sun. What am I?
Answer: Photosynthesis
Riddle: I’m the cell’s brain giving orders. What am I?
Answer: Nucleus
Riddle: I carry oxygen in blood red tint. What am I?
Answer: Hemoglobin
Riddle: I’m tiny and make yogurt or sick. What am I?
Answer: Bacteria
Riddle: I power cells inside the energy hub. What am I?
Answer: Mitochondrion
Riddle: I coil life’s code in your gene’s twist. What am I?
Answer: DNA
Riddle: I pulse unseen in my heart life’s spark. What am I?
Answer: Electrical impulse
Riddle: I thread life’s start RNA’s kin. What am I?
Answer: RNA
Riddle: I glow soft in caves of life’s light. What am I?
Answer: Bioluminescence
Riddle: I signal in brain thought’s spark. What am I?
Answer: Neuron
Riddle: I brew life’s soup origin’s stew. What am I?
Answer: Primordial soup
Riddle: I trap scents in the air nose’s web. What am I?
Answer: Olfactory receptor
Riddle: I make my own food no plant here. What am I?
Answer: Cyanobacterium
Riddle: I change species slow time’s tweak. What am I?
Answer: Evolution
Riddle: I learn with no brain mold’s trick. What am I?
Answer: Slime mold
Riddle: I’m old as stone, still alive crab’s kin. What am I?
Answer: Horseshoe crab
Riddle: I’m in you, not human gut’s crew. What am I?
Answer: Gut bacteria
Riddle: I split in eyes color’s gate. What am I?
Answer: Retina
Riddle: I break soft with no bones muscles snap. What am I?
Answer: Muscle
Riddle: I think and balance brain’s twins. What am I?
Answer: Brain hemisphere Gene’s
Riddle: I bubble with yeast life’s lift. What am I?
Answer: Fermentation
Riddle: I twist life’s code gene’s scribe. What am I?
Answer: RNA
Riddle: I glow in the deep sea’s shine. What am I?
Answer: Phosphorescence
Riddle: I lock codes tight cell’s vault. What am I?
Answer: Genome
Riddle: I coil proteins life’s thread. What am I?
Answer: Protein
Riddle: I pack genes in web DNA’s wrap. What am I?
Answer: Chromatin
Riddle: I spark thoughts fast brain’s zip. What am I?
Answer: Neurotransmitter
Riddle: I shift water in cells life’s seep. What am I?
Answer: Osmosis
Riddle: I spread in cells mix’s flow. What am I?
Answer: Diffusion
Riddle: I lock power in cells life’s store. What am I?
Answer: Vacuole
Riddle: I glow in coral reef’s hue. What am I?
Answer: Coral fluorescence
Riddle: I steady cells life’s calm. What am I?
Answer: Homeostasis
Riddle: I twist life in the helix gene’s shape. What am I?
Answer: Helix
Riddle: I trap fuel in the web cell’s skin. What am I?
Answer: Membrane
Riddle: I fizz for plants sun’s gift. What am I?
Answer: Photosynthesis
Riddle: I spark in heartbeat’s jolt. What am I?
Answer: Electrical impulse
Riddle: I link cells through the fast brain’s bridge. What am I?
Answer: Synapse
Riddle: I lock life in clay time’s shell. What am I?
Answer: Petrified wood
Riddle: I glow in reef coral’s red. What am I?
Answer: Coral fluorescence
Riddle: I shift genes slowly in life’s tweak. What am I?
Answer: Evolution
Riddle: I trap air in the lungs breath catch. What am I?
Answer: Alveoli
Riddle: I coil life life-tight cell’s core. What am I?
Answer: DNA
Riddle: I spark in nerves thoughts zip. What am I?
Answer: Neuron
Riddle: I lock energy in the cell’s spark. What am I?
Answer: Mitochondrion
Riddle: I twist life’s start soup’s kin. What am I?
Answer: Primordial soup
Riddle: I glow in caves bug’s trick. What am I?
Answer: Bioluminescence
Riddle: I pack life in cells gene’s vault. What am I?
Answer: Nucleus
Riddle: I shift cells to steady life’s flow. What am I?
Answer: Homeostasis
