An exosome is...

• A nuclear protein

• nano-sized membrane bags

• a type of hormone

• a neurotransmitter

Scientists mistakenly thought that exosomes were

• garbage bags made by cells

• important to understand cancer

• released by stem cells

• used to change the cells around them

exosomes are released by

• cancer cells only

• white blood cells only

• liver cells only

• all cell types

the cellular microenvironment would include

• the chemicals that surround cells

• the tissue fluid that surrounds cells

• chemicals that are taken into cells by endocytosis

• all of these

The outside of an exosome is mostly made from

• DNA

• RNA

• phospholipids

• protein

Answer explanation

Phospholipids are what the cell membrane is made up of.

Inside an exosome you could find

• liquids like cellular fluids

• RNA

• Protein

• all of the above