Science 8/11/23 Flashcards
what does multicellular mean
the organism is made up of more than one cell
what does unicellular mean
the organism is made up of one cell
what do enzymes do
they break large molicals into small
what does a platelet do
they clot blood and stop them bleeding
what
dissolves in plasma
carbon dioxide, hormones and waste products are all dissolved in plasma
what is a red blood cell
carries oxygen to the cell for respiraton
what is a white blood cell
defends the body against infections
what dose a nucleus do
controls cell and contains DNA
what dose a cell membrane do
controls what substances come in and out
what dose a cytoplasm do
jelly substance where chemical reaction happen
what dose a mitochondria do
its where respiration happens
what dose a cell wall do
scructure and supports the cell
what dose a chloroplast do
photosynthesis happens (how cells get their energy)\
what dose a vacuole do
cell sap that supports the cell
what dose bacteria do
copies DNA and then multiplies
