The study of life.
Highly organized tiny structures that are the smallest unit capable of life functions.
The process by which organisms make more of their kind. from one generation to the next.
Maintenance of stable internal conditions in spite of variations in external environment.
The basic unit of heredity.
The sum of all chemical reactions carried out in an organism.
Passing of traits from parents to offspring.
A change in DNA of a gene.
A change in the inherited traits in species over generations.
A group of genetically similar organisms that can produce fertile offspring.
The process by which organisms with favorable genes are most likely to survive and produce offspring. put forward by Charles Darwin
The branch of biology that studies the interaction of organisms in their environment.
The complete genetic material contained in an individual.
The act or perceiving objects or events via the senses.
The variable that the experimenter changes.
The PH Scale
The scale used to measure the acidity of substances.
The group that receives no special treatment.
The factor that is measured in an experiment.
A set of related hypotheses that have been tested and confirmed many times.
A predictive statement that can be further tested by additional observations and experiments.
The smallest unit of matter that cannot be broken down by chemical means.
A pure substance made up of only one kind of atom.
apure substance made of two or more different atoms that are joined chemically.
A group of atoms held together by a covalent bond.
Weak inter-moleculer forces that are the cause of attractions between the negative end of one water molecule and the positive end of another.
An atom that has lost or gained an electron.
One of the four special properties of water where in water molecules are attracted to other water molecules.
Water molecules are attracted to many other polar substances.
A mixture of two or more substances in which one substance is evenly distributed in the other.
The property of water that enables many Ionic substances to dissolve in water.
Compounds that form hydrogen ions when dissolved in water.
Organic compounds made of Carbon Hydrogen and Oxygen atoms< in the proportion 1:1. They are a key source of energy.
Non-polar molecules not suitable in water which includes the subclasses of Fats, Steroids, and Waxes.
A large molecule formed by linked amino acids.
A long chain of smaller molecules called nucleotides made of sugar, a phosphate group, and a base.
Consists of two strands of nucleotides that spiral around each other.
A sigle stranded nucleotide that plays a key role in the manufacture of proteins.
A single nucleotide with three energy storing phosphate groups.
The ability to move matter.
The energy needed to start a chemical reaction.
Allow reactions in biological systems to go fast enough to support life.
The substance on which an enzyme reacts during a chemical reaction.
Negatively charged particles in a atom.
Ions of opposite charges can form ionic bonds.
Is essential for life, stores heat efficiently, and binds to itself.
compounds are formed in living things and contain carbon.
All living things are made of cells, cells are the basic unit of life, All cells arise from living things.
Encloses the cell and separates the interior from its surroundings.
The interior fluid of a cell.
A single celled organism with no membrane bound organelles.
Long threadlike structures that protrude from prokaryotic cell surfaces.
A cell with a membrane bound nucleus.
Short Hairlike structures that protrude from the surface of some eukaryotic cells, and help propel things across the cells surface.
A lipid made of a phosphate group and two fatty acids.
The arrangement of phospholipids in a cell membrane.
An extensive system of internal membranes that move proteins and other substances through a cell.
A set of flattened membrane bound sacks that serves as the packaging and distribution center of the cell.
Small spherical organelles that contain the cells digestive enzymes.
The organelle that harvests energy from organic compounds to make ATP.
The organelles that use light energy to make carbohydrates.