Match the lettered choices on the picture below to the correct term.  

Which embryonic germ layer gives rise to the skin and the central nervous system?

Tay-Sachs disease is a genetic disease that results in accumulation of glycolipids (gangliosides) within nerve cells.  The genetic defect  causes   ______  to be unable  to break down  the glycolipids.

What type of membrane is this (indicated by the arrow)?

The energy for active transport comes from __________.

What type of gland is this (indicated by the arrow)?

How does RNA move from the nucleus to the cytoplasm?

Ribosomes can be found in the cell ______.                

Which  embryonic germ layer gives rise to bone and muscle?       

Select the best description of  lysosomes.