Q. No.Match the Column-I with Column-II
|
Column-I |
Column-II |
||
|
(a) |
Saprophyte |
(i) |
Symbiotic association of fungi with plant roots |
|
(b) |
Parasite |
(ii) |
Decomposition of dead organic materials |
|
(c) |
Lichens |
(iii) |
Living on living plants or animals |
|
(d) |
Mycorrhiza |
(iv) |
Symbiotic association of algae and fungi |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (ii) | (i) | (iii) | (iv) |
Match the organisms in Column-I with habitats in Column-II.
| Column-I | Column-II | ||
| (a) | Halophiles | (i) | Hot springs |
| (b) | Thermoacidophiles | (ii) | Aquatic environment |
| (c) | Methanogens | (iii) | Guts of ruminants |
| (d) | Cyanobacteria | (iv) | Salty areas |
Select the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (i) | (iii) | (ii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (iv) | (i) | (i) |
| 4. | (ii) | (iv) | (iii) | (i) |
Consider the following statement with respect to Mycoplasma
a. They lack cell wall.
b. They are the largest living cell.
c. They can survive without oxygen
d. They are pathogenic to animals only.
The correct statements are
1. b & d
2. b & c
3. a & c
4. a & d
The correct match [with respect to Whittaker’s Five Kingdom classification] is:
| 1. | Monera | All members have a cell wall |
| 2. | Protista | All members are photosynthetic |
| 3. | Fungi | All members are multi-cellular |
| 4. | Animalia | All members are heterotrophs |
The diagram shows the presence of a pathogen amongst RBCs in the peripheral blood smear of a patient. Even though the shape is very easy to identify, the structure highlighted in the circle should enable you to identify the pathogen easily. It is:
| 1. | Trypanosoma | 2. | Plasmodium |
| 3. | Schistosoma | 4. | Clonorchis |
| (i) | Body organization of fungi is multicellular/loose tissue type. |
| (ii) | Mode of nutrition in monerans is autotrophic or heterotrophic. |
| (iii) | Nuclear membrane may be present in E.coli. |
| (iv) | Cell wall is cellulosic in Euglena. |
| (v) | Non-cellulosic cell wall is present in fungi. |
1. Three
2. Two
3. Four
4. Five
| i. | It is placed together organisms which widely differed in other characters. |
| ii. | It brought together the prokaryotic bacteria and blue green algae with other groups which were eukaryotic. |
| iii. | It grouped together the unicellular and multicellular organisms. |
| iv. | It did not distinguish between heterotrophic and autotrophic organisms. |
| v. | It had kingdoms Plantae and Animalia. |
1. Two
2. Five
3. Four
4. Three
i. The bacterial structure is very simple but are complex in behavior
ii. Compared to many other organisms, bacteria as a group show the most extensive metabolic diversity
iii. Some of the bacteria are autotrophic
iv. Most of the bacteria are heterotrophic
v. Bacteria possess cell wall
How many of the above statements are not incorrect?
1. Four
2. Five
3. Two
4. Three
i. These produce biogas/gobar gas
ii. These are strict anaerobes
iii. These belong to archaebacteria
iv. These are also found in marshy areas
v. These possess non-cellulosic cell wall
How many of the above statements are correct?
1. Four
2. Five
3. Two
4. Three
| I: | In diatoms, the cell walls form two thin overlapping shells which fit together as in a soap box |
| II: | The walls are embedded with silica and thus are indestructible |
| III: | The fossilized diatoms are called diatomaceous earth |
| IV: | Diatoms are not the main producers in the oceans |
| V: | Diatomaceous earth is used in polishing, filtration of oil and syrups |
1. One
2. Four
3. Three
4. Two
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