Identify the wrong statement.
The degree of decrease of chemical potential of water depends on concentration of solute
Bacteria and fungal spores are killed when they enter into pickels and jams due to plasmolysis
The process of water excudation is called transpiration
Reverse plasmolysis will occur when flaccid cells are placed in hypotonic solution
C.
The process of water excudation is called transpiration
Transpiration is the process of loss of water vapours from plant body surface.
Guttation is the process of excudation of xylem sap on the edges of leaves. It takes place by hydathodes.
A plant produced 50 flowers. Ovary of each flower has 50 ovules. How many fruits and seeds are produced by that plant, respectively?
50, 50
50, 100
50, 2500
2500, 2500
Select the mismatch.
Tomato - Axile placentation
Sunflower - Free central placentation
Pea - Marginal placentation
Poppy - Parietal placentation
What did Engelmann observe from his prism experiments?
Bacteria could not detect the sites of O2 evolution.
Bacteria release excess carbon dioxide in red and blue light
Bacteria accumulated due to the increase in temperature caused by increase in oxygen concentration
Bacteria get accumulated towards red and blue light
Read the following statements.
I. Adam's apple in man is formed by thyroid cartilage.
II. The maximum volume of air a person can breath in after forced expiration is vital capacity.
III. About 20-25% of CO, is transported as carbaminohaemoglobin.
IV. Pneumotaxic centre lies in pons.
The correct statement(s) is
Only I
I, II
I, II, III
I, II, III, IV
Select the mismatch
| Algae | Thallus |
| Chalamydomonas | Unicellular flagellate |
| Chlorella | Unicellular non flagellate |
| Ulva | Parenchymatous |
| Volvox | Non- flagellate colonies |
The given symbols of floral parts indicate the condition:
% or CA or PA or G
zygomorphic flower, epipetalous, epiphyllous, superior ovary
actinomorphic flower, epipetalous, interior ovary
zygomorphic flower, epiphyllous, epipetalous, superior ovary
actionmorphic flower, epipetalous, superior ovary
Identify the type of flagella Column I based on there structures given in Column II.
| Column I (Flagella type) | Column II (Structure) |
| A. Monotrichous | 1. |
| B. Amphitrichous | 2. |
| C. Lophotrichous | 3. |
| D. Peritrichous | 4. |
A - 1; B - 2; C - 3; D - 4
A - 2; B - 1; C - 4; D - 3
A - 4; B - 3; C - 2; D - 1
A - 4; B - 1; C - 2; D - 3
The heterocysts in the cyanobacterium are
site of photosynthesis
reserve food storage
enactive enzymes
nitrogen-fixation
