Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Find out the wrong statements

(A) Ulothrix and Spirogyra are filamentous forms

(B) Porphyra and Laminaria are fresh water algae

(C) Stored food is in the form of mannitol in Rhodophycean members

(D) Chlorella and Spirulina are unicellular algae

  • (A) and (B)

  • (B) and (C)

  • (A) and (C)

  • (A) and (D)

  • (A) and (D)


B.

(B) and (C)

Porphyra and haminaria are both fresh water algae stored food material in Rhodophycean algae is flouredian starch.


2.

Pick out the statement that does not apply to viroids

  • Infectious agents smaller than viruses

  • Cause potato spindle tuber disease

  • Have free DNA

  • Lack protein coat

  • Lack protein coat


C.

Have free DNA

Viroid consist of just a short section of RNA, but without the protein coat typical of viruses.


3.

Diplontic type of life cycle is seen in
(i) Fucus

(ii) Gymnosperms

(iii) Pteriodophytes

(iv) Bryophytes

  • (i) only

  • (i) and (iv) only

  • (i) and (iii) only

  • (iii) only

  • (iii) only


C.

(i) and (iii) only

Diplontic type of life cycle are observed in fucus and gymnosperms.


4.

An analytical taxonomic aid for identifying plants and animals based on similarities and dissimilarities is called

  • Catalogue

  • Flora

  • Manual

  • Key

  • Key


D.

Key

Taxonomic key is a device that is used by biologists for identifying unknown organisms.

Keys are constructed so that the user is presented with series of choice about the characteristics of unknown organism. It is also used to identify organisms on the basis of similarities and dissimilarities.


5.

Which of the following does not belong to Class -Basidiomycetes?

  • Agaricus

  • Trichoderma

  • Puccinia

  • Saccharomyces

  • Saccharomyces


E.

Ustilago

Among all the given options, option e is correct.

Basidiomycetes is a group of higher fungi that have septate hyphae and spores borne on a basidium.

Trichoderma and Saccharomyces does not belong Class- Basidiomycetes. Trichoderma belongs to Family- Hypocreaaceae and Saccharomyces belongs to Class- Ascomycetes.


6.

Which of these is wrong about diatoms?

  • Microscopic

  • Planktonic

  • Overlapping shells

  • Spores with 2 flagella

  • Spores with 2 flagella


D.

Spores with 2 flagella

Diatoms spore are specialised cells called auxospores, it acts as dormat stage in life cycle of diatoms also referred as resting spores.


7.

Match Column I with Column II and choose the right option

Column I Column II
A. Amoeba i. Has flagella for locomotion
B. Paramecium ii. Moves with the help of cilia
C. Trypanosoma iii. Puts out pseudopodia for locomotion

  • A - iii; B - i; C - ii

  • A - iii; B - ii; C - i

  • A - ii; B - i; C - iii

  • A - ii; B - i; C - iii

  • A - ii; B - i; C - iii


B.

A - iii; B - ii; C - i

Amoeba locomotory organ is pseudopodia, Paramecium have cilia and Trypanosoma moves with the help of flagella.


8.

I. Unicellular Protists found in fresh water

II. Possess a protein-rich outer layer called pellicle

III. Have two flagella

IV. Possess pigments identical to those in higher plants.

These characters apply to genus

  • Alternaria

  • Nostoc

  • Chlorella

  • Euglena

  • Euglena


D.

Euglena

Euglena are single celled protistans that live mostly in fresh water. They have outer covering called pellicle, they also possess, long tail called flagella, which they use to more through water. They also contain chloroplasts and produce their own food through photosynthesis.


9.

Archaebacteria and Eubactaria have been included under the kingdom

  • Monera

  • Plantae

  • Fungi

  • Protista

  • Protista


A.

Monera

Archaebacteria and Eubacteria are the most ancient living forms and are classified under Kingdom- Monera.


10.

Which of the following statements is wrong about bryophytes?

  • Bryophytes are also called amphibian of the plant kingdom.

  • The gametophyte is the main plant body

  • Sexual reproduction takes place in the presence of water

  • Sporophyte is not free-living but attached to the photosynthesis gametophyte

  • Sporophyte is not free-living but attached to the photosynthesis gametophyte


E.

Zygote develops into a gametophyte

Among all the given statements, statement V is wrong about bryophytes. 

In bryophytes, zygote develops into sporophyte.