Question

Name the protonan responsible for causing
malaria
Who is considered as the Father of Bacterior!
Which bacteria grow in canned food?
. What is om benzoate?
Short answer type questions
What are protozoans?
In what respect are lungi different from a
Why does milk curdle? Explain how one can se
curd at home
What happens when yeast is added to dough?​

Answer 1

Answer:

. Fill in the blanks:

(a) Microorganisms can be seen with the help of a_______.

(b) Blue green algae fix _______ directly from, air to enhance fertility of soil.

(c) Alcohol is produced with the help of_______.

(d) Cholera is caused by_______.

Ans. (a) microscope (b) atmospheric nitrogen

(c) yeast (d) bacteria.

Q.2. Tick the correct answer:

(a) Yeast is used in the production of

(i) sugar

(ii) alcohol

(iii) hydrochloric acid

(iv) oxygen.

(b) The following is an antibiotic

(i) sodium bicarbonate

(ii) streptomycin

(iii) alcohol

yeast.

(c) Carrier of malaria-causing protozoan is

(i) female Anopheles mosquito

(ii) cockroach

(iii) housefly

butterfly.

(d) The most common carrier of communicable diseases is

(i) ant

(ii) housefly

(iii) dragonfly

spider,

(e) (e) The bread or idli dough rises because of

(i) heat

(ii) grinding

(iii) growth of yeast cells

kneading.

(f) The process of conversion of sugar into alcohol is called

(i) nitrogen fixation

(ii) moulding

(iii) fermentation

infection

Ans. (a) (ii) alcohol (b) (ii) Streptomycin

(c) (i) female Anopheles mosquito (d) (ii) housefly

(e) (iii) growth of yeast cells (f) (iii) fermentation.

Q.3. Match the organisms in Column A with their action in Column B.

Column A Column B

(i) Bacteria (a) Fixing nitrogen

(ii) Rhizobium (b) Setting of curd

(iii) Lactobacillus (c) Baking of bread

(iv) Yeast (d) Causing malaria

(v) A protozoan (e) Causing cholera

(vi) A virus (f) Causing AIDS

(g) Producing antibodies

Ans. Column A Column B

(i) 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

plz mark this answer as brainlest