CBSE
Multiple Choice QuestionsWhich of these is wrong about diatoms?
Microscopic
Planktonic
Overlapping shells
Spores with 2 flagella
Spores with 2 flagella
Slime layer and capsule in bacteria are modifications of the
Glycocalyx
Cell wall
Plasma membrane
Pellicle
Pellicle
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
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.
Which one of the following is a very good pollution indicator?
Fungi
Slime moulds
Lichens
Euglenoids
Euglenoids
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
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
Match Column I with Column II and choose the right option.
| Column I | Column II |
| A. Claviceps | 1. Deuteromycetes |
| B. Puccinia | 2. Ascomycetes |
| C. Trichoderma | 3. Basidiomycetes |
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
Archaebacteria and Eubactaria have been included under the kingdom
Monera
Plantae
Fungi
Protista
Protista
