It is the part of the digestive tract where approx 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals.That is, absorption of the nutrients and minerals in the food ingested, usually via the mouth, at an earlier stage in the digestive process.t is the part of the digestive tract where approx 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals.
Green seaweeds. Characteristics: Green colour from chlorophyll a and b in the same proportions as the 'higher' plants; beta-carotene (a yellow pigment); and various characteristic xanthophylls (yellowish or brownish pigments). Food reserves are starch, some fats or oils like higher plants.
Algae and Chlorophyll a . What are algae? Algae are one celled, free floating, organisms that produce their own food by photosynthesis. Chlorophyll, the same green pigment plants contain, allows them to convert the energy from sunlight into food. Algae ar e among the primary producers of food and oxygen in the Bay. Some algae grow in coloniesâgroups of cells that grow and move together which can form filaments (threads) or large mats. Some algae are