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Standard 2 Vocab

Standard 2 Vocabulary Words

Prokaryote Made up of cells that do not have a nucleus, including archaea and bacteria.
Structure The arrangement of parts in an organism.
Photosynthesis The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
Nutrients Components of food that organisms use to survive and grow.
Cell Membrane A phospholipid layer that covers a cell's surface; acts as a barrier between the inside of a cell and the cell's environment.
Organ Structure made up of many different tissues that work together.
Tissue A group of similar cells that work together to do one job.
Semi-Permeable Membrane A partial membrane that allows certain molecules or particles to pass through it by diffusion.
Organism A living organism; anything that can carry out life processes independently.
Organelle Structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances.
Respiratory System The system of the body that moves oxygen from the outside environment into the body and removes carbon dioxide and water from the body.
Immune System The system of the body that help fight off infections.
Digestive System The system of the body that breaks down food molecules so they can be absorbed into the blood and eliminate waste from the body.
Excretory System The system of the body that collects wastes produced by cells and removes the wastes from the body.
Muscular System The system of the body that allows you to move.
Cytoplasm The gel-like substance within a cell that keeps all of the organelles inside the cell.
Nucleus An organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA.
Cell Smallest unit of living things that can perform a specific function.
Osmosis The diffusion of water through a membrane.
Chloroplast Contains green-chlorophyll, plant cell organelle that converts sunlight, carbon dioxide, and water into sugar.
Eukaryote Made up of cells that are enclosed by a membrane; including animals, plants, and fungi, not archaea and bacteria.
Skeletal System The system of the body that provides shape and support, allows for movement, protects your organs, and stores mineral and other materials.
Cell Wall A rigid structure that encloses, supports, and protects the cells of a plant, algae, fungi and most bacteria.
Cellular Respiration The process by which cells use oxygen to produce energy from food.
Circulatory System The system of the body that carries needed substances to the cells and carries waste products aways from the cells; also helps fight diseases.
Diffusion The movement of particles from regions of higher density to regions of lower density.
Mitochondria The cell organelle that breaks down lipids, carbohydrates, and release energy. Known as the powerhouse of the cell.