Question

Explain about Chrysophytes and Dinoflafellates.​

Answer 1

Answer:

dinoflagellates are a large group of flagellate protists that can constitute the phylum dinoflagellate. most are marine plankton,but they are common in fresh water habitats. chrysophytes re common microscopic chromists in fresh water some species are colorless,but the vast majority are photosynthesis

Answer 2

Chrysophytes:-

• This group includes diatoms and Golden algae .
• They aur found in freshwater as well as in Marine environment .
• They are microscopic and float passively in water currents .
• Most of them of photosynthetic .
• In diatoms the cell was formed to thin overlapping shells or hypotheca which fit together as in a soapbox .
• The walls are embedded with silica and the walls are Indestructible .
• Thus diatoms have left Behind large amount of silver deposit in their habitat this accumulation over millions of years is referred to as diatomaceous Earth .
• Being gritty this oil is used in polishing filtration of oil and syrups diatoms are the chief producers in the oceans .
• diatoms are divided into two types based on their structural symmetry the central diatoms are radially symmetrical and pinnel's or bilateral symmetrical .
• They reproduce asexually by binary fission and sexually by the formation of garments the axis powers are formed as a result of sexual reproduction and their legendary Spores.

Dinoflagellates:-

• These organism from ocean Marine and photosynthetic .
• They appear hello Green Brown blue or red depending on the main pigment present in their cells .
• The cell wall has tips Ellis plate on the outer surface .
• Most of them have two flagella 1 lines longitudinal and the other transversely in the arrow between the wall plates .
• The flagella produce spinning moments of these protests are called whirling whips.
• The nucleus has conducted chromosomes even interface and their chromosomes do not have histones .This is called mesokaryon.
• Some Marine dinoflagellates like noctiluca show Bioluminescenes.
• Very Often red dinoflagellates like gonyaulax undergo such Rapid multiplication that they make the sea appear red .
• Toxins released by such large numbers may even kill other Marine animals such as fishes .