Read the following and answer any four questions from (i) to (v).

Heterotrophic nutrition is a mode of nutrition in which organisms obtain readymade organic food from outside sources. The organisms that depend upon outside sources for obtaining organic nutrients are called heterotrophs. Heterotrophic nutrition is of three types: saprophytic, parasitic, and holozoic nutrition.

1. In which of the following groups of organisms’ food material is broken outside the body and absorbed?
2. Mushroom, green plants, Amoeba.
3. Yeast, mushroom, bread mould.
4. Paramecium, Amoeba, Cuscuta.
5. Cuscuta, lice, tapeworm.

1. Which of the following is a parasite?
2. Yeast
3. Taenia
4. Amoeba
5. Earthworm

III. Which of the following is an example of saprotroph?

1. Grass
2. Mushroom
3. Amoeba
4. Paramecium

1. Heterotrophic nutrition involves:
2. Production of simple sugar from inorganic compounds.
3. Utilisation of chemical energy to prepare food.
4. Utilisation of energy obtained by plants.
5. All of these.

1. ln Paramecium, food enters the body through:
2. Mouth
3. Pseudopodia
4. Cilia

Cytostome.