Question

Saprophytic and parasitic modes of nutrition are found in

• A. Bacteria
• B. Viruses
• C. Fungi
• D. None of the Above

Answer 1

Answer: (A), (C)

The correct options are
A Bacteria
C Fungi

Heterotrophs eat ready-made complex organic food. From this, they obtain energy for metabolism, atoms and molecules to build new protoplasm or repair worn-out parts, and ions, co-enzymes and vitamins vital for chemical processes. There are four types of heterotrophic nutrition - saprophytic, parasitic, symbiotic and insectivorous.
Saprotrophs are decomposers and liberate energy for their own use by breaking down complex organic matter from the dead bodies of other organisms. At the same time, this process releases vital chemical elements into the soil, which are absorbed by autotrophs. Thus, saprotrophs aid the recycling of materials from dead organisms to living ones. Fungal and bacterial saprotrophs are referred to as saprophyte, while animal saprotrophs are called as saprozoites. Parasites are organisms, that live in or on other living organisms (called as the host) generally receiving shelter and deriving nutrients from it. The parasites may cause harm to the host plant.

Thus, the correct options ae A and C