Question

The term that is used for the mode of nutrition in yeast, mushroom, and bread mould is
(a) Autotrophic
(b) Insectivorous
(c) Saprophytic
(d)Parasitic

Answer 1

This is the mode of nutrition in which the organisms feed on dead and decaying matter. This mode is also very beneficial to the environment as they are the primary recycler of the environment.

Complete answer:
The saprophytic mode of nutrition is found in yeast, mushroom, and also on bread mould. This mode of nutrition is especially a process of chemoheterotrophic extracellular digestion which is involved within the processing of dead and decayed organic matter. This involves the breakdown of organic matter into a simpler form so that it can easily be digested and absorbed directly through the cell membranes of the organisms.

Additional Information:
-In the saprophytic mode of nutrition, protein breaks into a simpler form as amino acids so that it can easily be absorbed.
-Just like protein, starch is also broken down into simple sugar and fats into glycerol and fatty acids, so that it can be absorbed easily to get transported through the cell membranes.
-Autotrophic mode of nutrition means self-feeding. This is found in plants and cyanobacteria which prepare their own food by using simple substances from their surroundings.
-Insectivorous mode of nutrition is another type of nutrition in which plants derive their nutrients mainly nitrogen by trapping and digesting animals, mainly insects.
-These plants mainly grow in places where the soil is thin or poor in nutrients, mainly nitrogen, and also in acidic bogs and rock outcroppings.
-Parasitic mode of nutrition is also known as the heterotrophic mode of nutrition where one organism lives on the body surface or inside the body of another organism and derives its food from the host organism. The host provides nutrition and protection to the parasite.

So, the correct answer is, ‘Saprophytic’.

Note:
- A process in which saprobionts feed by secreting enzymes through the cell membrane onto the food is known as chemoheterotrophic extracellular digestion.
-In the saprophytic mode of nutrition organic matters break into a simpler form such as protein breaks to amino acids, starch to simple sugar, and fate to glycerol and fatty acids.