Question

B. Match the items in Column A with those in Column B:
Column A
Column B
1. Lactobacillus
(a) Protozoa
2. Aspergillus
(b) Alge
3. Spirogyra
(c) Fungi 2
4. Paramecium
(d) Preservative
5. Salt and sugar
(e) Bacterial
6. Blue green algae
(f) Nitrogen fixer​

Answer 1

Answer:

Bacteria (e) Causing cholera

(ii) Rhizobium (a) Fixing nitrogen

(iii) Lactobacillus (b) Setting of curd

(iv) Yeast (c) Baking of bread

(v) A protozoan (d) Causes malaria

(vi) A virus (f) Causing AIDS

Explanation:

Answer 2

Answer:

$\sf{1. \; Lactobacillus \rightarrow (e) \; Bacteria}$

Explanation : Lactobacillus is a type of bacteria present in our digestive, urinary, and genital systems without causing disease. It is also present in some fermented foods like yogurt and in dietary supplements.

$\sf{2. \; Aspergillus \rightarrow (c) \; Fungi}$

Explanation: Aspergillus is a type of fungi.

$\sf{3. \; Spirogyra \rightarrow (b) \; Algae}$

Explanation: Spirogyras are common free-floating freshwater algae that inhabit ponds, pools, tanks, lakes, ditches, etc.

$\sf{4. \; Paramecium \rightarrow (a) \; Protozoa}$

Explanation: It is a single-celled eukaryote belonging to kingdom Protista and is a well-known genus of ciliate protozoa.

$\sf{5. \; Salt \; and \; sugar \rightarrow (d) \; Preservative}$

Explanation: Salt and sugar are used as food preservatives to preserve pickles, jam, fishes, etc.

$\sf{6. \; Blue \; green \; algae \rightarrow (f) \; Nitrogen \; fixer}$

Explanation: Blue green algae are nitrogen fixing bacteria. They convert atmospheric nitrogen into nitrates and nitrites.