Slime layer and capsule in bacteria are modifications of the fro

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 Multiple Choice QuestionsMultiple Choice Questions

241.

Archaebacteria and Eubactaria have been included under the kingdom

  • Monera

  • Plantae

  • Fungi

  • Protista

  • Protista


242.

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


243.

Consider the following statements with respect to fungi

(a) They show a great diversity in morphology and habitat

(b) The white spots seen on mustard leaves are due to a saprophytic fungus

(c) They prefer to grow in cold and humid places

(d) The cell walls of fungi are composed of chitin and polysaccharides

Of the above statements-

  • (a) and (b) are correct

  • (a) and (d) are correct

  • (a) and (c) are correct

  • (b) and (d) are correct

  • (b) and (d) are correct


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244.

Slime layer and capsule in bacteria are modifications of the

  • Glycocalyx

  • Cell wall

  • Plasma membrane

  • Pellicle

  • Pellicle


A.

Glycocalyx

Glycocalyx is a glycoprotein- polysaccharide covering that surrounds the cell- membranes of some bacteria, epithelia and other cells. Most animal epithelial cells have a fuzz like coat on the external surface of their plasma membranes.


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245.

Which of the following statements is incorrect?

  • Viruses are obligate parasites.

  • Infective constituent in viruses is the protein coat.

  • Prions consist of abnormally folded proteins.

  • Viroids lack a protein coat.


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