Look up the meanings of the pre-fixes: endo-, exo-, and cyto-. notice structures and processes have names that provide clues to their meanings.
2007-03-26 06:14:11 · 3 answers · asked by cherryvalley2006 2 in Science & Mathematics ➔ Biology
Exo: external eg. exogenous: taking in proteins from outside the cell.
Endo: internal eg. endogenous: nitrogenous metabolism of cell and membrane elements. This is referring to the processing of internal cellular components.
Cyto: see also cyt. It refers to a cell. Eg. Cytology: The study of cells using light/electron microscopy to study their morphology.
Use Online Medical Dictionary: http://cancerweb.ncl.ac.uk/cgi-bin/omd?action=Home&query=
and
www.dictionary.com
2007-03-26 06:28:30 · answer #1 · answered by soul83 2 · 0⤊ 0⤋
endo means internal for example 'endocardium' is the innermost layer of the heart, ecto means outer for example ectopic pregnancy refers to an implantation of the foetus outside the uterus or the ectoderm as in the outer layer of the developing embryo, and cyto means cellular as in cytoplasm for the plasma found in the cell, or the cytotrophoblast,i.e. the cellular layer of the blastocyst etc.
2007-03-26 15:32:18 · answer #2 · answered by rara avis 4 · 0⤊ 0⤋
exo means outer, cyto, like cytoplasm, look for that, this is probably homework, so i am only gining you the 1 above.
2007-03-26 13:23:06 · answer #3 · answered by furisded 3 · 0⤊ 0⤋