pattern

Vocabulaire pour l'IELTS Academic (Score 8-9) - Biology

Ici, vous apprendrez quelques mots anglais liés à la Biologie qui sont nécessaires pour l'examen académique IELTS.

Réviser

Flashcards

Orthographe

Quiz

Commencer à apprendre
Vocabulary for Academic IELTS (8)
ribosome

a tiny structure within cells that assembles proteins by reading the genetic instructions carried by messenger RNA

ribosome

ribosome

Ex: Ribosomes are the cellular factories responsible for building proteins, essential for various biological functions. 
Golgi apparatus

a cellular organelle involved in the processing, packaging, and distribution of proteins and lipids within the cell, consisting of a stack of flattened membrane sacs called cisternae

Appareil de Golgi, Complexe de Golgi

Appareil de Golgi, Complexe de Golgi

Ex: The Golgi apparatus modifies and packages proteins, ensuring they are properly shaped and functional. 
lysosome

a small, enzyme-filled sac in a cell that breaks down waste materials and unwanted substances

lysosome, vésicule enzymatique

lysosome, vésicule enzymatique

Ex: Lysosomes act as the "recycling centers" of cells, breaking down and digesting cellular waste materials. 
mitochondrion

an organelle that is abundantly present in most cells and is responsible for energy production

mitochondrie

mitochondrie

Ex: The mitochondrion is a membrane-bound organelle found in most eukaryotic cells. 
chromosome

a very small threadlike structure in a living organism that carries the genes and genetic information

chromosome

chromosome

chloroplast

a plant cell organelle that uses sunlight to produce energy and make glucose through photosynthesis

chloroplaste, organite photosynthétique

chloroplaste, organite photosynthétique

Ex: Chloroplasts are the green structures in plant cells where photosynthesis, the process of converting light into energy, takes place. 
cytoplasm

the gel-like, semifluid substance within a cell that surrounds the organelles, providing a medium for cellular activities, including metabolism, transport of substances, and support for cellular structures

cytoplasme, substance cytoplasmique

cytoplasme, substance cytoplasmique

Ex: Cytoplasm fills the interior of a cell, serving as a supportive medium for cellular structures and activities. 
cytoplast

a cell that has had its nucleus removed or the cellular material excluding the nucleus

cytoplaste, cellule énucléée

cytoplaste, cellule énucléée

Ex: The scientist carefully examined the cytoplast under the microscope to analyze its cellular structure. 
cytoskeleton

a network of protein fibers in a cell that gives it shape, supports its structure, and aids in movement

cytosquelette, squelette cellulaire

cytosquelette, squelette cellulaire

Ex: The cytoskeleton acts like a cell's internal scaffolding, maintaining its shape and structural integrity. 
nucleotide

a molecule that forms the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base

nucléotide

nucléotide

Ex: The sequence of nucleotides in DNA determines genetic information. 
genome
genome
[nom]

the complete set of genetic material of any living thing

génome

génome

Ex: The human genome consists of approximately 3 billion base pairs of DNA, encoding all the information needed for human development and function. 
polypeptide

a linear chain of amino acids linked by peptide bonds, forming a primary structure of a protein

polypeptide, chaîne polypeptidique

polypeptide, chaîne polypeptidique

Ex: Insulin is a polypeptide hormone that regulates blood sugar levels. 
organelle

a specialized, membrane-bound structure within a cell that performs specific functions, contributing to the cell's overall structure and function

organite, organelle

organite, organelle

Ex: The nucleus, an organelle housing genetic material, regulates cell activities. 
vacuole
vacuole
[nom]

a cell organelle in plants, fungi, and some protists that stores nutrients, manages waste, and helps maintain cell pressure

vacuole, vésicule

vacuole, vésicule

Ex: Vacuoles in plant cells may contain pigments, giving flowers and fruits their vibrant colors. 
centriole

a pair of small cylinders near the nucleus in animal cells, organizing cell division by forming the mitotic spindle

centriole, paire de centrioles

centriole, paire de centrioles

Ex: Centrioles play a crucial role in animal cell division, forming the mitotic spindle. 
telomere

a repetitive DNA sequence at the end of a linear chromosome, protecting it from deterioration during replication, and playing a role in cellular aging and cancer development

télomère, extrémité chromosomique

télomère, extrémité chromosomique

Ex: Think of telomeres as the plastic tips on the ends of a phone charger cable that keep it from wearing out. 
histone
histone
[nom]

a type of protein that plays a structural role in the packaging of DNA into nucleosomes, fundamental units of chromatin

histone, protéine histone

histone, protéine histone

Ex: Histones act as spools around which DNA winds, forming compact structures called nucleosomes. 
phenotype

the observable physical and behavioral characteristics of an organism, resulting from the interaction of its genotype (genetic makeup) with the environment

phénotype, caractéristiques observables

phénotype, caractéristiques observables

Ex: Eye color, hair texture, and height are examples of human phenotypes. 
homeostasis

the tendency of an organism or cell to regulate its internal environment and maintain a stable, balanced condition, despite external changes

homéostasie, équilibre interne

homéostasie, équilibre interne

Ex: Sweating to cool down the body temperature is an example of homeostasis in response to external heat. 
translation

the process by which the information encoded in the sequence of nucleotides in DNA is converted into a functional product, typically a protein

traduction, traduction génétique

traduction, traduction génétique

Ex: In the first step of translation, messenger RNA (mRNA) is synthesized based on the DNA template. 
transcription

the process by which a segment of DNA is used as a template to synthesize a complementary RNA molecule

transcription, la transcription

transcription, la transcription

Ex: Transcription initiates when RNA polymerase binds to the DNA at the promoter region. 
replication

the process by which an organism duplicates its genetic material, particularly the copying of DNA in cell division

réplication

réplication

Ex: DNA replication is a fundamental process that occurs before cell division, ensuring genetic continuity. 
heterozygote

an individual organism or cell with two different alleles at a specific gene locus, having inherited different genetic information from each parent

hétérozygote, individu hétérozygote

hétérozygote, individu hétérozygote

Ex: An organism with one allele for brown eyes and one for blue eyes is a heterozygote for the eye color gene. 
homozygote

an individual organism or cell with two identical alleles at a specific gene locus, having inherited the same genetic information from both parents

homozygote, individu homozygote

homozygote, individu homozygote

Ex: An organism with two alleles for brown eyes is a homozygote for the eye color gene. 
codon
codon
[nom]

a sequence of three adjacent nucleotides in mRNA that codes for a specific amino acid during protein synthesis or serves as a start or stop signal in the translation process

codon, séquence codonique

codon, séquence codonique

Ex: AUG is the start codon, initiating the translation process in protein synthesis. 
symbiosis

a close and often long-term interaction between two different species living in close physical association, typically to the advantage of both

symbiose

symbiose

Ex: The relationship between cleaner fish and larger fish, where the cleaner fish remove parasites, represents a mutualistic symbiosis. 
ameba
ameba
[nom]

a single-celled, microscopic organism belonging to the group of protozoa, characterized by a flexible cell membrane and the absence of a fixed body shape

amibe, amibes

amibe, amibes

Ex: Amebas are commonly found in various aquatic environments, including freshwater ponds and streams. 
capsid
capsid
[nom]

the protein coat of a virus that encases its genetic material and helps it attach to and enter host cells during infection

la capside, l'enveloppe protéique

la capside, l'enveloppe protéique

Ex: The capsid of a virus provides structural integrity, enclosing and protecting its genetic material. 
chlorophyll

a green pigment found in all green plants and cyanobacteria that is responsible for the absorption of the sunlight needed for the photosynthesis process

chlorophylle

chlorophylle

Ex: Chlorophyll is responsible for the green color of plants, reflecting its role in photosynthesis. 
eukaryote

a type of living thing with cells that have a nucleus and other structures enclosed in membranes, like plants, animals, fungi, and some microorganisms

eucaryote, organisme eucaryote

eucaryote, organisme eucaryote

Ex: Plants, with their roots, stems, and leaves, are examples of eukaryotes. 
fetus
fetus
[nom]

an offspring of a human or animal that is not born yet, particularly a human aged more than eight weeks after conception

fœtus

fœtus

Ex: The ultrasound showed that the fetus was developing normally. 
ovum
ovum
[nom]

a mature, female reproductive cell or egg, typically larger than a sperm cell, capable of fusing with a sperm cell during fertilization to form a zygote

ovule, œuf

ovule, œuf

Ex: Human females typically release one ovum during each menstrual cycle. 
pepsin
pepsin
[nom]

an enzyme produced in the stomach that helps in the digestion of proteins by breaking them down into smaller peptides

pepsine, enzyme pepsique

pepsine, enzyme pepsique

Ex: Pepsin is an enzyme produced in the stomach that helps break down proteins into smaller peptides. 
adenosine triphosphate

a molecule that carries energy within cells, composed of adenine, a ribose sugar, and three phosphate groups

adénosine triphosphate, triphosphate d'adénosine

adénosine triphosphate, triphosphate d'adénosine

Ex: Adenosine triphosphate is often referred to as the "energy currency" of cells due to its role in energy transfer. 
prokaryote

a simple, single-celled organism that lacks a true nucleus and membrane-bound organelles, such as bacteria and archaea

procaryote, organisme procaryote

procaryote, organisme procaryote

Ex: Bacteria, such as Escherichia coli (E. coli), are common examples of prokaryotes. 
LanGeek
Télécharger l'application LanGeek