definitions of biotechnology terms

Cell

The smallest unit of life that can carry out all the functions of a living organism.

Chlorophyll

A green pigment found in the chloroplasts of plant cells and algae that absorbs light energy essential for photosynthesis.

Cytoplasm

A thick, gel-like fluid inside the cell membrane that contains all organelles and cell parts.

Synthetic biology

A field of science that combines biology and engineering to design and build new biological systems or redesign existing ones for useful purposes, such as producing medicines or biofuels.

Systems biology

An area of research focusing on complex interactions within biological systems, using computational models and experiments to understand how biological components work together.

Environmental biology

The study of how organisms interact with each other and with their physical surroundings, including the impact of human activity on ecosystems.

Neurobiology

A branch of biology focusing on the structure and function of the nervous system, including the brain, spinal cord, and neural circuits.

Biotechnology

Biotechnology is the use of living organisms, cells, and biological systems to develop products and technologies for improving human life, health, agriculture, and the environment.

Cellular biology (Cytology)

The branch of biology studying cells, their structure, function, and behavior, including processes such as cell division, communication, and metabolism.

Genetics

The study of genes, genetic variation, and heredity in living organisms. It explores how traits are passed from parents to offspring through DNA.

Environment

All external factors affecting living organisms, such as air, water, soil, climate, and other living beings.

Biology

The natural science studying life and living organisms, including their structure, function, growth, origin, evolution, and distribution.

Microscope

A scientific instrument that magnifies small objects for detailed observation. It is essential in biological research to study cells and microorganisms.

Natural selection

A mechanism of evolution where individuals with advantageous traits are more likely to survive and reproduce.

Evolution

The process by which organisms change over generations, through mechanisms like mutation, natural selection, and genetic drift, leading to biodiversity.

Inheritance

The transmission of genetic characteristics from parents to offspring through DNA. It determines traits such as eye color, blood type, and susceptibility to certain diseases.

Organization

The orderly arrangement of biological systems from atoms to cells, tissues, organs, and organisms, each with specific roles.

Reproduction

The biological process by which new individual organisms are produced. It can be sexual (involving two parents) or asexual (one parent).

Growth

An increase in size and number of cells in an organism, which contributes to its physical development and maturity.

Development

The process through which an organism progresses from early stages to maturity, involving cell differentiation and structural changes.

Feeding

The process by which organisms obtain food to gain energy and nutrients necessary for survival, growth, and repair.

Respiration

A chemical process converting glucose and oxygen into energy, carbon dioxide, and water.

Excretion

The biological process by which waste products of metabolism and other non-useful materials are removed from an organism’s body to maintain internal balance.

Responsiveness

The ability of an organism to detect and respond to stimuli from its environment, such as light, temperature, or touch.

Movement

The internal or external motion of an organism or its parts. It includes motion of muscles, organs, and even internal substances like blood.

Locomotion

The ability of an organism to move from one place to another, usually to find food, escape predators, or reproduce.

Homeostasis

The ability of an organism to maintain a stable internal environment despite external changes, such as regulating body temperature or pH levels.

Levels of biological organization

The hierarchy of complex biological structures and systems, ranging from atoms to the entire biosphere: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.

Biosphere

The global sum of all ecosystems; it includes all regions of the Earth where life exists, including land, water, and the atmosphere.

Ecosystem

A community of living organisms interacting with each other and with their non-living environment (like soil, air, and water) within a certain area.

Population

A group of individuals of the same species living in the same area at the same time, capable of interbreeding.

Atom

The smallest unit of matter that retains the properties of an element. Atoms combine to form molecules.

Biochemist

A scientist who studies the chemical processes and substances that occur within living organisms.

Geneticist

A scientist who studies genes, genetic variation, and heredity in organisms.

Cell biologist

A scientist who studies the structure, function, and behavior of cells.

Physiologist

A scientist who studies how the organs and systems of living organisms function.

Pathologist

A scientist or doctor who studies the causes and effects of diseases, often through examination of tissues and body fluids.

Ecologist

A scientist studying relationships between organisms and their environments.

Observing

The act of noticing and describing events or processes in a careful, orderly way, often using the senses or scientific tools.

Questioning

The process of asking questions based on observations to better understand a phenomenon or problem.

Hypothesizing

The process of forming a testable explanation or educated guess (hypothesis) based on prior knowledge and observation.

Predicting

Making a forecast or educated guess about what will happen in the future based on current knowledge, evidence, or patterns.

Testing

The process of conducting experiments or observations to determine whether a hypothesis is supported or refuted by evidence.

Hypothesis

A testable and falsifiable scientific explanation for a phenomenon or a prediction based on prior knowledge and observations.

Interpreting

The process of analyzing and making sense of data or observations to draw conclusions and understand results.

Cell theory

A fundamental concept in biology stating that:

1. All living things are made of cells,

2. The cell is the basic unit of life,

3. All cells come from pre-existing cells.

DNA (Deoxyribonucleic acid)

A molecule that carries genetic information used in the growth, development, functioning, and reproduction of all living organisms.

Nucleus

A membrane-bound organelle in eukaryotic cells that contains the cell’s DNA and controls many cellular activities.

Chromosome

A thread-like structure made of DNA and proteins, found in the nucleus, that carries genetic information in the form of genes.

Mitosis

A type of cell division in which a single cell divides to produce two genetically identical daughter cells, used for growth and repair.

Meiosis

A type of cell division that reduces the chromosome number by half, producing four genetically different gametes (sperm or egg cells)

Mutation

A change in the DNA sequence of a gene, which can lead to variations in traits and sometimes cause diseases.

Species

A group of similar organisms that can interbreed and produce fertile offspring under natural conditions.

Genetic information

Instructions encoded in DNA that determine an organism’s traits, development, and functioning.

Double helix

The twisted ladder-like shape of the DNA molecule, consisting of two strands held together by base pairs.

Genetic code

The set of rules by which information in DNA or RNA sequences is translated into proteins by living cells.

Photosynthesis

The process by which green plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce glucose and oxygen.

Degradation

The breakdown of complex substances into simpler ones, often by enzymes or environmental factors, including biological or chemical processes.

Daughter cell

A cell that results from the division of a parent cell during mitosis or meiosis.

Each daughter cell receives genetic material from the parent cell.

Translation

The process in protein synthesis where the genetic code carried by mRNA is read to build a specific protein using amino acids.

Transcription

The process of copying a gene’s DNA sequence into a complementary RNA sequence.

Flora

The plant life found in a particular region or time, typically referring to naturally occurring or native plants.

Metabolism

The sum of all chemical reactions in an organism that sustain life, including processes that break down food and those that build up cellular components.