4.3 Flashcards
Molecules
Two or more molecules joined
Organelles
Small structures in. A cell with a special function
Cells
The. Smallest unit of life. Cells are the building blocks of living things.
There are many different sized and shaped cells in animals and plants, as well as single-cellos organisms
Tissue
Groups of cell s doing the same thing
Systems
Groups of organs working together
Cellular respiration
The chemical reaction involving oxegen that moves the energy in glucose into the compound atp the body is able to use the energy controlled atp
Respiratory system
The body system that controls breathing
Circulatory system
The system that p bloodyp around the body
Blood cells
Any of that many types of cells found in the blood
Blood vessels
The veins bolood go though
Heart
Musclingr organ that pumps blood though the circulatory system
