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 wave. 1. a region of abrupt change of pressure and density moving as a wave front at or above the velocity of sound, caused by an intense explosion or supersonic flow over a body. 2. shock waves from the recent collapse of one of the nation's largest banks. I awoke in mid-air, as the shock wave hurled me against the bedroom's far wall.