Which algae has the most chloroplast pigment?

Answer 1

eukaryotic algae

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis. It is derived from the Greek words chloros which means green and plast which means form (in biological terms it can be more roughly translated as organelle or cell).

A group of structurally simple plant-like organisms that carry out oxygen-evolving photosynthesis. Although most algae are unicellar and microscopic, some as small as 1 to 2 micrometres in diameter (a micrometre is 0.000001 metre, or 0.00004 in), many are conspicuous in the form of pond scum, seaweeds, red tide, blue-green discolouration of aquarium walls, the green coating on trees, and red snow. Representatives of many genera of algae live together in symbiosis with fungi to form lichens. In some forms of algae, the ability to photosynthesize has been lost through evolution. Algae differ from bryophytes (mosses, liverworts, and hornworts), which also lack complex tissues, in that their reproductive cells are produced in unicellular structures rather than multicellular structures. The study of algae is called phycology (Grk., phykos, seaweed) or algology (Lat., alga, sea wrack).

My guess here would be to go for the less obvious Brown Algae (Phaeophyta)

Brown algae, like red algae, are found mostly in marine habitats. Like Red algae, they may lack chlorophyll b, but have another type called chlorophyll c, as well as special photosynthetic, yellow to deep-red pigments. Reproductive cells often have flagella. One genus, although common in all warm waters, is famous for floating in masses in the Sargasso Sea of the North Atlantic Ocean. The reason I choose brown algae is that Brown algae are best known for their rapid growth, immense size, and relatively complex tissues. Some kelps reach a length of 30 m (98 ft) and have a primitive food-conducting tissue.

But the daddy Brown Algae must be Giant Kelp (Macrocystis pyrifera), the largest seaweed. Found in the Pacific coast of North America and South America - grows up to 30 cm per day, to a total length of over 60 meters.

Answer 2

I'd say the green algae too. They're other colors (blue, red, and brown), but being that chloroplast is green, it's probably the correct answer.

Answer 3

At a guess, because I am not that good at Botany, I'd say that one that has more exposure to the sun, so therefore, the green one. I only think this as I am not sure.