Saprophytes and Decomposers

Q.

Which structure shows a carboxylic acid?

1. 

2. 

3. 

4. 

Q.

Which of the following is true regarding decomposition of dead animals or plants?

1. Nutrients are absorbed by plants and decomposers in soil.

2. Complex organic nutrients are converted into simple inorganic nutrients.

3. Complex inorganic nutrients are converted into simple organic nutrients.

4. Fertility of soil is decreased gradually.

Q.

Bacteria plays important role in an ecosystem because

1. they act as producers.

2. they act as decomposers.

3. they act as consumers.

4. they act as parasites.

Q. Which of these is the major function of bacteria and fungi in an ecosystem?

1. Degradation of organic matter
2. Fixation of nitrogen and phosphorus
3. Absorption of inorganic nutrients
4. Degradation of inorganic matter

Q. The decomposers in an ecosystem ______.

1. Convert inorganic materials into organic compounds
2. Convert inorganic materials to simpler forms
3. Convert organic materials to inorganic forms
4. Do not breakdown organic compounds.

Q. _____ are called 'nature's cleaners'.

1. Producers
2. Consumers
3. Decomposers
4. Carnivores

Q. In an ecosystem, bacteria and fungi perform the role of .

1. producers
2. consumers
3. decomposers

Q.

Question 32
What are decomposers? What will be the consequence of their absence in an ecosystem?

Q.

Question 19
The decomposers in an ecosystem

(a) convert inorganic material, to simpler forms
(b) convert organic material to inorganic forms
(c) convert inorganic materials into organic compounds
(d) do not break down organic compounds

Q.

Explain the role of decomposers in the environment.