Bio Vocab

Root, prefix or suffix

Definition

Example

A, an

Not, without

A patient is asymptomatic if she does not have symptoms.

Ad

Towards

Adductor muscles bring limbs toward the body.

Amph

Double, both

Amphibians live both on land and in the water.

Arthro

Joint

Arthritis is a stiffness of the joints caused by inflammation.

Auto

Self

Autotrophic organisms are considered self-feeders because they make their own food.

Bio

Life

Biology is the study of living things.

Blast

Germ, embryo

The blastula is an early stage of embryonic development.

Cardi

Heart

The pericardium is the sac around the heart.

Chlor

Green

Chlorophyll is the green pigment in plants.

Chrom

Color

Chromatography is a technique that can separate pigments of color.

Cide, cis

To kill, to cut

Pesticides are used to kill agricultural pests.

Cyt

Cell

Erythrocytes are red blood cells.

De

Without

Denatured proteins are without the structure necessary for function.

Derm

Skin

The dermis is the layer of skin that includes blood vessels, nerves, sweat glands and other important structures.

Ecto, exo

Outside of

Exoskeletons protect bodies on the outside.

Endo, en

Within

Endoskeletons support bodies from within.

Epi

Above, upon

The epidermis is the layer that rests upon the dermis.

Gastr

Stomach

Gastritis is the inflammation of the stomach.

Gen

Origin

Angiogenesis is the development of new blood vessels.

Glyc

Sugar

People with hypoglycemia have too low blood sugar.

Hem

Blood

Hematology is the study of blood.

Root, prefix or suffix

Definition

Example

Herb

Plants

Herbivores eat plants.

Hetero

Other, different

Heterotrophs get their energy from other organisms.

Hom

Same, alike

Wings on a bat and arms on a human are homologous structures because their anatomy is similar.

Hydro

Water

Hydrophobic substances repel water.

Hyper

Over, above

Hyperthermia is the condition of having a body temperature greatly above normal.

Hypo

Below, beneath

Hypothyroidism is the condition of having an underactive thyroid.

Im, in

Not

The independent variable does not depend on the dependent variable.

Inter

Between

An international traveller is a person who goes from one country to another.

Intra

Within

Intramural sports are athletic competitions from teams from the same school.   

Itis

Inflammation

Colitis is inflammation of the colon.

Lys

Break

Hydrolysis means to break a bond during a reaction with water.

Macro

Large, long

If an object is macroscopic, it is visible to the naked eye.

Mes

Middle, between

Mesoderm is located between the endoderm and ectoderm.

Meta

After, beyond

A tadpole undergoes a metamorphosis to become a frog.

Meter

Measure

A glucometer measures the amount of glucose in the blood.

Micro

Small, as a metric prefix = 10-6

A microscope is used for viewing very small objects.

Mono, Uni

one, single

Something that is monochrome has only one color 

Myo

Muscle

The myocardium is the muscular tissue of the heart.

Neo

New

Neonatal nurses take care of newborn babies.

Nom

Name, order

Taxonomy is the branch of science concerned with classification and naming.

-oid

Resemble, like

Organisms that resemble humans are said to be humanoid.

Ology

Study of

Biology is the study of living things.

Ortho

Straight, correct

An orthodontist straightens teeth.

Ose

Sugar

Glucose and sucrose are types of sugar.

Root, prefix or suffix

Definition

Example

Path

Disease

Pathologists study the cause and effects of diseases.

Ped, pod

Foot

Arthropods, such as insects, spiders and crustaceans, have jointed feet.

Phage

Eat

Macrophage is a type of white blood cell that engulfs and digests cellular debris.

Phob

Fear

Arachnophobia is a fear of spiders.

Photo

Light

A photon is a particle of light.

Phil

Love

Hydrophilic substances mix well with water.

Poly, multi

Many

A polymer is a molecule made up of many monomers.

Pseudo

false

The amoeba uses its pseudopod to capture its prey.

Sacchar

sugar

Monosaccharide is a sugar with one unit

Sub

Below

Subatomic particles are the particles that make up an atom.

Syn

Together, with

The synapse is where two neurons come together.

Tele, telo

Far, end

During telophase, the chromosomes are far apart.

Therm

Heat

Hyperthermia is the condition of having a body temperature greatly above normal.

Trans

Across

Neurotransmitters carry signals across synapses.

Vore, troph

Consume

Herbivores eat plants. Autotrophs make their own food.

Zoo

Animal

Zoology is the study of animals.