Biology Dictionary

  • Facs

    Facs

    Fluorescence-activated cell sorting, a technique used to analyze and separate cells based on their fluorescent characteristics.

  • Factor (short for fertility factor also sex factor or f plasmid)

    Factor (short for fertility factor also sex factor or f plasmid)

    A plasmid in bacteria that carries genes allowing for the transfer of DNA between cells during conjugation.

  • Facultative

    Facultative

    Describing organisms or conditions that are able to adapt to different environments or metabolic states, often switching between aerobic and anaerobic conditions.

  • Facultative anaerobe

    Facultative anaerobe

    An organism that can survive with or without oxygen, capable of switching between aerobic respiration and fermentation.

  • Facultative heterochromatin

    Facultative heterochromatin

    Regions of the genome that can switch between an active (euchromatic) and inactive (heterochromatic) state depending on environmental conditions or cell type.

  • Fad (flavin adenine dinucleotide)

    Fad (flavin adenine dinucleotide)

    A coenzyme involved in redox reactions, primarily in cellular respiration, where it alternates between oxidized and reduced forms.

  • Fadh2

    Fadh2

    The reduced form of flavin adenine dinucleotide (FAD), produced during the Krebs cycle and used in the electron transport chain to generate ATP.

  • Faeces, feces

    Faeces, feces

    The solid waste products of digestion that are excreted from the body through the anus.

  • Fahrenheit scale

    Fahrenheit scale

    A temperature scale in which water freezes at 32°F and boils at 212°F at standard atmospheric pressure.

  • Fallopian tubes

    Fallopian tubes

    The pair of tubes that connect the ovaries to the uterus in female mammals, through which eggs travel during ovulation.