Organelles.
Robert Hooke first observed and described box-like structures in cork cells in his 1665 book "Micrographia." He called these structures "cells" because they reminded him of the cells in a monastery.
Tiny structures in palisade are called granna .
Insulin is secreted from structures called pancreatic beta cells located in the Islets of Langerhans in the pancreas.
false
nicleus
target cells
Prokaryots
A ribosome is the organelle that builds proteins. Is that what you are looking for? If not, sorry! :(
D ==
Jellyfish sting their prey using nematocysts, also called cnidocysts, stinging structures located in specialized cells called cnidocytes.
Histology is the study of cells and tissues.
organelles