Basic Chemistry Flashcards
What is an Atom?
The smallest unit of matter that consists of chemical elements.
What is a Molecule?
A group of 2 or more atoms held together by chemical bonds.
What is an organelle?
A unit within a cell that has a specific function.
What is tissue?
Made up by cells. Completes an organelle.
What is an ecosystem?
A biological community of interacting organisms and their physical environment.
What is a biosphere?
Anywhere on earth that supports life.
What is a Eukaryote?
Organisms which contain cells with an enclosed nucleus within membranes.
What is a Prokaryote?
A unicellular organism that lacks membrane-bound organelles.
What is a nucleotide?
Group of molecules that, when linked together, form the building blocks of DNA.
What is gene expression?
A process where information from a gene is used in the synthesis of a functional gene product.
What is a compound?
2 or more elements bound together to build another substance.
What is a subatomic particle
Particles smaller than atoms
What is an ion?
Group of electrically charged atoms. Formed by the loss or gain of electrons.
What is an isotope?
Two or more chemical elements. With the same protons. Same but different.
What is potential energy?
Energy held by and object with respect to arrangments of particles.
What are chemical bonds?
The lasting attraction between two or more atoms that creates a compound.