The green algae (singular: green alga) are a large, informal grouping of algae consisting of the Chlorophyte and Charophyte algae, which are now placed in separate Divisions. The land plants or Embryophytes (higher plants) are thought to have emerged from the Charophytes.reen algae have chloroplasts that contain chlorophyll a and b, giving them a bright green color, as well as the accessory pigments beta carotene and xanthophylls, in stacked thylakoids. The cell walls of green algae usually contain cellulose, and they store carbohydrate in the form of starch.
shock noun (ELECTRIC CURRENT). âº [C] a âcurrent of âelectricity going through the âbody: If that âcord is âpulled âloose, youâll get a shock from the âplug. shocking adjective us /ËÊÉkÂ·ÉªÅ/ âº The âbook was âconsidered shocking when it was first âpublished. adjective us /ËÊÉkÂ·ÉªÅ/.
Shock is a defence response. In medical terms, shock is the bodyâs response to a sudden drop in blood pressure. At first, the body responds to this life-threatening situation by constricting (narrowing) blood vessels in the extremities (hands and feet).