Question

Observe the following pictures.
b
1) Name the organisms 'a' and 'b'
il) To which group they belong to?
iii) Why do they appear green!

Answer 1

Answer:

1- a- green algae b- spirology

2- microorganisms

3- Green algae have chloroplasts that contain chlorophyll a and b, giving them a bright green color, as well as the accessory pigments beta carotene (red-orange) and xanthophylls (yellow) in stacked thylakoids. The cell walls of green algae usually contain cellulose, and they store carbohydrate in the form of starch.

In spring Spirogyra grows under water, but when there is enough sunlight and warmth they produce large amounts of oxygen, adhering as bubbles between the tangled filaments. The filamentous masses come to the surface and become visible as slimy green mats