cells and organs Flashcards
cell membrane
controls what goes in and out of a cell
cell wall
tough cellulose wall around plant cells. helps to support the plant cell
chloroplast
green discs found inside plant cells. where plants make food by photosynthesis
vacuole
found in plant cells to store sap
cytoplasm
chemical processes take place here
nucleus
the control centre of a cell. contains DNA
organ
a large part of a plant or animal that has an important function. it is made from different tissues (e.g. heart or brain)
digestive system
organ system that breaks down our food
small intestine
organ used to absorb digested food into the blood
large intestine
where water is absorbed into the body
gullet/oesophagus
food is pushed down the gullets by rings of muscle towards the stomach
stomach
food is mixed with digestive juice and acid
respiratory system
the human respiratory system contains the organs that allow us to get the oxygen we need and to remove the waste carbon dioxide we don’t need
cilia
small hairs on the surface of some cells
Alveoli
Small air sacs in the lungs where gas exchange takes place
