Biological Classification - 01-07-23

Which of the following bacteria are comma-shaped –

• (a) Coccus

• (b) Vibrio

• (c) Bacillus

• (d) Clostridium

Most of the bacteria are –

• (a) Autotrophs

• (b) Chemoautotrophs

• (c) Heterotroph

• (d) Parasites

Which of the following are autotrophs?

• (a) Photosynthetic bacteria

• (b) Chemosynthetic bacteria

• (c) Archaebacteria

• (d) Both a and b

Which of the following statements is wrong about Archaebacteria?

• (a) They live in some of the most harsh habitats

• (b) They are recently evolved group

• (c) Cell wall is peptidoglycanless

• (d) They are unlike most other bacteria

Which of the following areas or conditions would be favoured by thermoacidophiles?

• (a) The stomach of many herbivores

• (b) Hot, alkaline

• (c) Hot, sulphur springs

• (d) Deep sea valconic

Which is not correct about methanogens?

• (a) They are archaebacteria

• (b) They live in marshy areas

• (c) Methane is their preferred carbon source

• (d) They are present in guts of several ruminant animals (cow, buffaloes) and they produce biogas (CH4) from the dung of these animals

Assertion:- Two kingdom classification used for a

long time was inadequate.

Reason:- This system did not distinguish between

eukaryotes and prokaryotes, unicellular and

multicellular

• (A) If both Assertion & Reason are True and the Reason is a correct explanation of the Assertion.

• (B) If both Assertion & Reason are True but the Reason is not a correct explanation of the Assertion.

• (C) If Assertion is True but the Reason is false.

• (D) If both Assertion & Reason are false

Assertion:- Five kingdom classification is not a

phylogenetic classification.

Reason:- Monera, protista, Plantae and animalia

are not placed as per sequence of their origin.

• (A) If both Assertion & Reason are True and the Reason is a correct explanation of the Assertion.

• (B) If both Assertion & Reason are True but the Reason is not a correct explanation of the Assertion.

• (C) If Assertion is True but the Reason is false.

• (D) If both Assertion & Reason are false

Assertion:- In Earlier classifications bacteria,

blue green algae, fungi, mosses, ferns,

gymnosperms and angiosperms were included

together under plants.

Reason:- All the members possess cell wall over

plasma membrane

• (A) If both Assertion & Reason are True and the Reason is a correct explanation of the Assertion.

• (B) If both Assertion & Reason are True but the Reason is not a correct explanation of the Assertion.

• (C) If Assertion is True but the Reason is false.

• (D) If both Assertion & Reason are false

Assertion:- Classification systems have

undergone several changes over a period of time

Reason:- This happened, because the criteria for

classifications get changed gradually.

• (A) If both Assertion & Reason are True and the Reason is a correct explanation of the Assertion.

• (B) If both Assertion & Reason are True but the Reason is not a correct explanation of the Assertion.

• (C) If Assertion is True but the Reason is false.

• (D) If both Assertion & Reason are false