Cells and Organisms yr7 Flashcards
cell
the smallest functioning unit of a living organism. it contains parts to carry out life processes
cell membrane
the cell component that surrounds the cell and controls movement of substances in and out
cell wall
the cell component that surrounds the cell and strengthens it. (In plant cells, it is made of cellulose)
Chloroplast
the plant cell component that absorbs light so the plant can make food by photosynthesis
cytoplasm
jelly-like substance (found in cells) where most chemical process happens
digestive system
organ system that breaks down and then absorbs food molecules
leaf cell
the plant cell that contain chloroplasts, where photosynthesis takes place
microscope
An optical instrument used to magnify objects, so small details can be seen clearly
mitochondria
part of the cell where food molecules are broken down during the process of respiration, enabling energy transfer
nerve cell
an animal cell that transmits electrical impulses around the body
Nucleus
the cell component that contains genetic material (DNA) , which controls the cell’s activities
organ
a group of different tissues working together to carry out a function
organ system
a group of organs working together to perform a function
red blood cell
an animal cell that transports oxygen around the body
respiration
a chemical reaction where food and oxygen are converted into water and carbon dioxide, and enabling energy transfer.
