(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

Given below is an animal followed by three terms or features. Underline the term which does not match with the animal. 

Hydra - Invertebrata, Cnidaria, Crustacea 

Which one of the following characteristics is found in all fungi but not in all bacteria?

Bacteria are referred to as prokaryotes because

Yeast is used in the production of

Tick (✓) mark the correct statement/statements.

(a) All mushrooms are poisonous.

(b) All toadstools are poisonous.

(c) Some toadstools are poisonous.

(d) Some mushrooms are edible. 

Where can you find the mould Rhizopus most easily found?

Why is it generally advised that every living room in the house should get direct sunlight at least for a short time?

If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation:

How did the mould get inside the bell-jar?

If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation:

What would happen if the bread was not covered by the bell-jar?

If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation: 

What would happen if moist bread was placed in a refrigerator?

If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation:

What appears first on the bread-the mycelia or the spores?

Write in proper sequence the five major steps in the cultivation of the common edible mushrooms.

Comment on the following:

Denitrifying bacteria are a blessing as well as a curse to farmers.

Comment on the following: 

Yeast is used in bakeries and breweries.

Given alongside is an incomplete table of vitamins, their rich sources and the related deficiency diseases. Fill in the blanks [(i)-(viii)] with only one suitable word for each. 

What are the respiratory substrates? Give two examples.

Where does glycolysis take place in the living cell?

Write True or False against the following statement:

Combustion is a biological process.

Write True or False against the following statement:

Protein is the first choice as a respiratory substrate.

Write True or False against the following statement:

The respiration is faster than combustion.