Which one of the following is a very good pollution indicator?

• Fungi

• Slime moulds

• Lichens

• Euglenoids

• Euglenoids

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

Match Column I with Column II and choose the right option.

• A - 3; B - 1; C - 2

• A - 2; B - 3; C - 1

• C - 1; B - 3; C - 2

• A - 3; B - 2; C - 1

• A - 3; B - 2; C - 1

Match Column I with Column II and choose the right option

• 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

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.

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

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

• Agaricus

• Trichoderma

• Puccinia

• Saccharomyces

• Saccharomyces

Slime layer and capsule in bacteria are modifications of the

• Glycocalyx

• Cell wall

• Plasma membrane

• Pellicle

• Pellicle

Which of these is wrong about diatoms?

• Microscopic

• Planktonic

• Overlapping shells

• Spores with 2 flagella

• Spores with 2 flagella

Archaebacteria and Eubactaria have been included under the kingdom

• Monera

• Plantae

• Fungi

• Protista

• Protista