Plants can be grown in (Select the incorrect option)
1. Soil with essential nutrients
2. Water with essential nutrients
3. Either water or soil with essential nutrients
4. Water or soil without essential nutrients
Growing plants being suspended in a closed or semi-closed environment by spraying the plant's dangling roots and lower stem with an atomized or sprayed, nutrient-rich water solution is called as:
1. Hydroponics
2. Aquaponics
3. Aeroponics
4. In vitro culture
Plant growing in absence of light will show increased:
1. uptake of minerals
2. uptake of water
3. elongation of internodes
4. ascent of sap
Carnivorous plants are almost entirely restricted to habitats like bogs where:
1. soil nutrients are extremely limiting, but where sunlight and water are readily available.
2. soil has very low nitrogen but other minerals are adequate and there is shortage of sunlight.
3. soil nutrients, sunlight and water are all in very limited supply.
4. soil nutrients are readily available, but where sunlight and water are extremely limiting.
Consider the following two facts regarding mycorrhizae:
A. The percent of plant species that form ectomycorrhizae
B. The percent of plant species that form arbuscular mycorrhizae
1.(A) is greater than (B)
2. Item (A) is less than item (B)
3.(A) and (B) are approximately equal
4. A & B have no relationship
Identify the incorrectly matched co-factor in Column I with enzymes in Column II:
COLUMN I |
COLUMN II |
|
1. |
Zinc |
Alcohol dehydrogenase |
2. |
Magnesium |
Cytochrome oxidase |
3. |
Molybdenum |
Nitrate reductase |
4. |
Iron |
Nitrogenase |
The property of soil that is least conducive to plant growth would be:
1. a large percent of humus content
2. a large number of soil organisms
3. a compacted soil
4. a soil with high porosity
The process of protein synthesis will be adversely affected by the deficiency of which of the following elements in plants despite adequate availability of nitrogen?
1. Potassium
2. Boron
3. Chlorine
4. Copper
Over-watering a plant is dangerous as it
1. leaches all essential minerals.
2. neutralizes the pH of the soil.
3. deprives the roots of oxygen.
4. supports the growth of root parasites.
Identify the incorrectly matched essential mineral nutrient in plants [Column I] with function [Column II]:
COLUMN I |
COLUMN II |
|
1. |
Zinc |
Synthesis of auxin |
2. |
Copper |
Activation of enzymes of respiration |
3. |
Boron |
Carbohydrate translocation |
4. |
Chlorine |
Ionic balance |