In which of the following groups of organisms, food material is broken down outside the body and then absorbed in?
(A) mushroom, green plants, amoeba
(B) yeast, mushroom, bread mould
(C) paramecium, amoeba, cuscuta
(D) cuscuta, lice, tapeworm
Answer -
There are 3 types of heterotrophic nutrition by organisms:
-
Saprotrophic Nutrition
: In this, organisms
break down food outside
their body
Example - Fungi, Bread moulds, yeast
-
Parasitic Nutrition
: In this, organisms derive food from the body of
another living organism
without killing it
.
Example
- Cuscuta, Tapeworm
- Holozoic Nutrition : In this, organisms break down food inside their body. Example - Human Beings, Animals
Now, let’s check our option:
-
Option A
- Mushrooms have
saprotrophic
nutrition, Green plants are
autotrophs
, and amoeba follows
holozoic
nutrition.
Thus, Option A is incorrect .
-
Option B
- Yeast, Mushrooms and Bread mold have
saprotrophic
nutrition.
Thus, Option B is correct
-
Option C
- Paramecium and Amoeba have
holozoic
nutrition, Cuscuta have parasitic
nutrition
Thus, Option C is incorrect .
-
Option D
- Cuscuta, Lice and Tapeworm have
parasitic nutrition
Thus, Option D is incorrect .
So, the correct
answer is (b)