COVID-19 Tracker
Topics
Biology A-Z
Cell
Biochemistry
Human
Genetics
Zoology
Botany
Ecology
Anatomy & Physiology
Molecular
Microbiology
Neuroscience
Articles
Animal Kingdom
Tutorials
AP Biology
NGSS High School
News & Stories
Latest News
Editors’ Picks
Weekly Digest
Fun
Quotes about Biology
Search
Sign in
Welcome! Log into your account
your username
your password
Forgot your password? Get help
Privacy Policy
Password recovery
Recover your password
your email
A password will be e-mailed to you.
Biology Dictionary
COVID-19 Tracker
Topics
Biology A-Z
Cell
Biochemistry
Human
Genetics
Zoology
Botany
Ecology
Anatomy & Physiology
Molecular
Microbiology
Neuroscience
Articles
Animal Kingdom
Tutorials
AP Biology
NGSS High School
News & Stories
Latest News
Editors’ Picks
Weekly Digest
Fun
Quotes about Biology
Biochemistry
Abiogenesis
January 31, 2017
Acetic Acid
January 10, 2020
Acetyl-CoA
July 9, 2020
Action Potential
June 9, 2020
Active Immunity
November 18, 2016
Active Site
October 20, 2016
Active Transport
October 20, 2016
Adenosine Triphosphate (ATP)
January 20, 2017
Adhesion
October 23, 2016
Adipose Tissue
May 24, 2020
Aerobic Respiration
October 23, 2016
Agonist
May 15, 2017
Alanine Aminotransferase
December 6, 2020
Aldosterone
June 18, 2019
Allele
December 4, 2016
Allele Frequency
December 4, 2016
Alternative Splicing
March 12, 2018
Amino Acids
January 9, 2020
Ammonification
November 29, 2016
Amphipathic
October 27, 2016
Anabolism
February 13, 2017
Anaerobic Respiration
October 27, 2016
Anaphase
December 21, 2016
Antibody
April 22, 2018
Anticodon
October 30, 2016
Antioxidant
May 2, 2017
Apoptosis
June 6, 2017
ATP Synthase
February 22, 2017
Barr Body
March 19, 2017
Beta Oxidation
June 2, 2017
Bile Salts
November 20, 2019
Bilirubin
April 1, 2018
Bioavailability
April 22, 2018
Biochemistry
May 2, 2017
Biogeochemical Cycle
March 13, 2017
Bioinformatics
January 23, 2018
Bioluminescence
January 21, 2018
Biomimicry
June 7, 2017
Biotic and Abiotic Factors
June 4, 2017
Biotic Factors
November 8, 2016
Botulinum Toxin
October 4, 2020
Branched Chain Amino Acids
January 8, 2020
Calmodulin
June 25, 2017
Calvin Cycle
November 10, 2016
Capillary
December 28, 2020
Carbonyl Group
April 5, 2017
Carboxyl Group
February 21, 2017
Cardiac Muscle
December 8, 2017
Catabolism
January 11, 2017
Cell
November 15, 2016
Cell Cycle
May 30, 2017
Cell Differentiation
June 20, 2018
Cell Division
December 15, 2016
Cell Membrane
March 13, 2017
Cell Nucleus
July 30, 2017
Cell Signaling
May 4, 2017
Cell Wall
March 19, 2017
Cellular Respiration
November 17, 2016
Central Vacuole
April 5, 2017
Centriole
January 27, 2017
Centromere
November 26, 2016
Centrosome
January 14, 2017
Channel Protein
June 20, 2018
Chemical Biology
April 27, 2017
Chemical Formula
April 17, 2019
Chemiosmosis
February 13, 2017
Chemoautotroph
December 10, 2016
Chemoheterotroph
December 16, 2016
Chemosynthesis
March 20, 2017
Chitin
January 13, 2017
Chlorophyll
December 10, 2016
Chloroplast
March 19, 2017
Chromatid
December 16, 2016
Chromatography
April 8, 2018
Chromosome
December 13, 2016
Cilium
June 25, 2017
Coenzyme
November 15, 2016
Cofactor
February 21, 2017
Concentration Gradient
January 10, 2017
Condensation
February 28, 2017
Control Group
December 15, 2016
Controlled Experiment
February 12, 2017
Covalent Bond
May 4, 2020
Creatine Kinase
May 13, 2018
CRISPR
April 27, 2017
Cristae
November 23, 2016
Crossing Over
December 6, 2016
Crystallization
April 22, 2018
Cytokinesis
December 21, 2016
Cytoplasm
December 13, 2016
Cytoskeleton
April 5, 2017
Cytosol
March 20, 2017
Daughter Cells
October 25, 2018
Dehydration Synthesis
December 17, 2016
Deletion Mutation
February 20, 2017
Denature
December 18, 2016
Deoxyribonucleic Acid
April 17, 2021
Deoxyribose
February 9, 2017
Diffusion
April 27, 2017
Disaccharide
January 10, 2017
DNA
May 27, 2017
DNA Polymerase
May 24, 2020
DNA Sequencing
June 23, 2017
Dominant Allele
December 6, 2016
Double Helix
May 11, 2020
Dynamic Equilibrium
February 9, 2017
Electron Transport Chain
November 10, 2016
Embryonic Stem Cells
March 15, 2018
Emulsify
November 24, 2016
Endergonic Reaction
May 2, 2017
Endocannabinoid System
December 28, 2020
Endocytosis
November 15, 2016
Endoplasmic Reticulum
January 27, 2017
Enzyme Substrate Complex
December 4, 2016
Equilibrium Constant
February 21, 2017
Essential Amino Acids
April 21, 2020
Euphoria
August 14, 2017
Exergonic Reaction
May 2, 2017
Experimental Group
December 21, 2016
Extracellular Fluid
February 14, 2017
Facilitated Diffusion
April 5, 2017
Fat
May 7, 2017
Fatty Acids
May 5, 2017
Feedback Inhibition
February 12, 2017
Feedback Mechanism
December 6, 2020
Fermentation
April 27, 2017
Filtration
March 3, 2017
Fluid Mosaic Model
April 5, 2017
Fluoride
April 1, 2018
Formaldehyde
September 7, 2017
Frameshift Mutation
April 12, 2017
Gel Electrophoresis
April 27, 2017
Genetic Code
May 16, 2017
Genetic Engineering
May 14, 2020
Genetic Recombination
November 18, 2016
Gibberellin
May 20, 2018
Gluconeogenesis
May 7, 2017
Glutamic Acid
June 10, 2020
Glycerol
June 23, 2017
Glycogen
June 9, 2017
Glycogenesis
April 17, 2019
Glycogenolysis
February 13, 2017
Glycolysis
March 23, 2021
Glycoprotein
January 22, 2021
Golgi Apparatus
November 18, 2016
Heme
March 15, 2018
Heterotroph
December 15, 2016
Heterozygous
December 6, 2016
Homeostasis
October 29, 2016
Homologous Chromosomes
November 8, 2016
Hormone
January 23, 2018
HPA Axis
July 24, 2020
Hydrochloric Acid
April 23, 2020
Hydrolyze
November 18, 2016
Hydrophilic
December 17, 2016
Hydrophobic
December 15, 2016
Hydroxyl Group
April 5, 2017
Hyperosmotic
December 23, 2016
Hypertonic
December 29, 2016
Hypertonic Solution
January 20, 2017
Hypotonic
December 23, 2016
Hypotonic Solution
January 20, 2017
IGF-1
July 17, 2020
Integral Protein
August 25, 2018
Interphase
December 17, 2016
Intracellular Fluid
February 14, 2017
Intrinsic Factor
November 12, 2020
Irradiation
May 26, 2017
Isomer
June 12, 2017
Isotonic
January 12, 2017
Isotonic Solution
February 9, 2017
Ketone Bodies
February 26, 2018
Kidney
July 22, 2020
Krebs Cycle
January 12, 2017
Lac Operon
February 21, 2017
Lactase
February 28, 2017
Lactate Dehydrogenase
April 8, 2018
Lamina Propria
March 15, 2018
Ligand
April 22, 2018
Lipid
February 24, 2021
Liposome
February 26, 2018
Lyse
November 14, 2016
Lysosome
March 19, 2017
Lytic Cycle
October 7, 2018
Macromolecule
January 26, 2017
Mass Spectrometry
April 8, 2018
Median Lethal Dose
February 11, 2018
Meiosis
December 9, 2016
Metaphase
December 21, 2016
Methanol
September 7, 2017
Microfilament
April 14, 2017
Microtubule
April 5, 2017
Missense Mutation
August 15, 2018
Mitochondria
March 3, 2017
Mitochondrion
September 7, 2017
Mitosis
December 9, 2016
Molecule
December 15, 2016
Monomer
February 13, 2017
Monosaccharide
January 11, 2017
Monosomy
March 3, 2017
Motility
March 3, 2017
mRNA
November 25, 2016
Multiple Alleles
December 6, 2016
Muscle
December 8, 2017
Muscle Cell
December 8, 2017
Muscle Tissue
December 8, 2017
Mutation
April 5, 2017
Mycology
January 23, 2018
NADP+
February 14, 2017
NADPH
February 14, 2017
Negative Feedback
July 30, 2017
Nitrogen Cycle
May 16, 2017
Nitrogenous Base
October 7, 2018
NMR Spectroscopy
January 23, 2018
Nuclear Fallout
February 12, 2018
Nucleic Acid
September 7, 2017
Nucleoid
December 23, 2016
Nucleotide
October 30, 2016
Operator
April 18, 2019
Organelle
January 20, 2017
Osmolarity
January 22, 2021
Osmosis
November 1, 2016
Osmotic Pressure
March 20, 2017
Oxidative Phosphorylation
January 27, 2017
Oxidizing Agent
June 23, 2017
Passive Immunity
November 17, 2016
Passive Transport
October 27, 2016
Peptide Bond
January 11, 2017
Peptide Hormones
August 21, 2018
Peptidoglycan
February 22, 2017
Peripheral Proteins
August 15, 2018
Peroxisome
April 5, 2017
Phagocytosis
April 5, 2017
Pharmacology
June 14, 2017
Phosphate Group
November 4, 2016
Phospholipid
November 8, 2016
Photosynthesis
July 30, 2017
Physiology
May 15, 2017
Pinocytosis
November 12, 2016
Plant Hormones
August 21, 2018
Plasma Membrane
November 13, 2016
Plasmid
November 16, 2016
Point Mutation
November 22, 2016
Polar Molecule
February 27, 2017
Polypeptide
January 22, 2021
Polysaccharide
January 20, 2017
Porphyrin
March 15, 2018
Positive Feedback
November 26, 2016
Prometaphase
December 17, 2016
Prophase
December 17, 2016
Proteolysis
August 6, 2017
Protoplasm
December 27, 2016
Pyrimidine
August 6, 2017
Pyruvate
January 27, 2017
Receptor
February 27, 2018
Recessive Allele
December 4, 2016
Recombinant DNA
January 20, 2017
Refractory Period
November 10, 2020
Restriction Enzymes
June 28, 2020
Ribosomal RNA
November 10, 2016
Ribosome
January 12, 2017
Rigor Mortis
April 20, 2020
RNA Polymerase
November 10, 2016
Rough Endoplasmic Reticulum
January 31, 2017
Saccharomyces Cerevisiae
July 5, 2020
Scientific Method
March 3, 2017
Secretion
June 2, 2017
Selective Permeability
November 12, 2016
Seminal Vesicle
May 25, 2020
Semipermeable Membrane
February 14, 2017
Signal Transduction
March 12, 2018
Silent Mutation
June 20, 2018
Simple Diffusion
February 10, 2017
Sister Chromatids
November 17, 2016
Skeletal Muscle
December 8, 2017
Smooth Endoplasmic Reticulum
January 31, 2017
Smooth Muscle
December 8, 2017
Solute
December 13, 2016
Solution
December 13, 2016
Solvent
December 13, 2016
Spindle Fibers
September 17, 2018
Spontaneous Generation
May 30, 2017
Start Codon
March 19, 2017
Stop Codon
May 7, 2020
Stratified Cuboidal Epithelium
October 25, 2018
Substitution Mutation
June 20, 2018
Substrate
December 4, 2016
Sucrose
August 25, 2018
Sulfuric Acid
December 29, 2019
Synapsis
February 9, 2017
Telomerase
July 25, 2017
Telophase
December 21, 2016
Tertiary Structure
April 12, 2017
Thigmotropism
January 3, 2017
Thymine
March 12, 2017
Tonicity
February 10, 2017
Toxicity
April 1, 2018
Toxicology
February 12, 2018
Toxin
April 1, 2018
Transcription
November 22, 2016
Translation
November 23, 2016
Transport Protein
April 27, 2017
tRNA
November 29, 2016
Tubular Secretion
June 2, 2017
Universal Solvent
December 13, 2016
Vacuole
December 17, 2016
Vesicle
December 4, 2016
Virus
August 25, 2018
Water Potential
March 19, 2017
Western Blot
November 23, 2020
