Podcast
Questions and Answers
What is the primary source of energy for nutrient uptake in roots?
What is the primary source of energy for nutrient uptake in roots?
- Decomposition of organic matter
- Respiration in the presence of oxygen (correct)
- Photosynthesis
- Root interception
In the absence of oxygen, which type of nutrient uptake would occur?
In the absence of oxygen, which type of nutrient uptake would occur?
- Passive uptake (correct)
- Facilitated uptake
- Osmosis
- Active uptake
Why is it necessary for roots to maintain electroneutrality?
Why is it necessary for roots to maintain electroneutrality?
- To promote mycorrhizal association
- To maintain ion balance (correct)
- To prevent water uptake
- To reduce soil pH
The availability of nutrients to plants is influenced by which of the following factors?
The availability of nutrients to plants is influenced by which of the following factors?
Which factor is most important for the day-to-day nutrient requirement of a crop?
Which factor is most important for the day-to-day nutrient requirement of a crop?
For the next crop, which factor is most important for soil nutrient availability?
For the next crop, which factor is most important for soil nutrient availability?
What is the primary mode of transport of nutrients such as Ca, Mg, P, and K in the soil solution?
What is the primary mode of transport of nutrients such as Ca, Mg, P, and K in the soil solution?
What is the role of mycorrhizal fungi in root interception?
What is the role of mycorrhizal fungi in root interception?
What is the maximum concentration of P in the soil solution?
What is the maximum concentration of P in the soil solution?
Which nutrients are most significantly affected by root interception?
Which nutrients are most significantly affected by root interception?
What determines the quantity of nutrients intercepted by roots?
What determines the quantity of nutrients intercepted by roots?
How does root surface area affect root interception?
How does root surface area affect root interception?
What percentage of soil volume do roots typically occupy?
What percentage of soil volume do roots typically occupy?
What is a critical factor for root interception to occur?
What is a critical factor for root interception to occur?
What is the primary mechanism of water uptake in plants?
What is the primary mechanism of water uptake in plants?
What occurs when ions are taken up by a cell against a concentration gradient?
What occurs when ions are taken up by a cell against a concentration gradient?
What is the term for the process by which ions flow from an area of high concentration to an area of low concentration?
What is the term for the process by which ions flow from an area of high concentration to an area of low concentration?
What is the percentage of nitrogen absorbed by plant roots through mass flow?
What is the percentage of nitrogen absorbed by plant roots through mass flow?
