The process of mineral ions moving from one part of the plant to another is primarily driven by:
Diffusion and osmosis
Active transport and transpiration pull
Gravity and capillary action
Passive transport and root pressure
Related Questions
Which statement BEST describes the role of casparian strip in mineral ion uptake?
It enhances water uptake by increasing the surface area of the root.
It prevents water loss from the xylem back into the cortex.
It facilitates passive diffusion of all minerals into the stele.
It forces water and minerals to enter the symplast, allowing for selective uptake by endodermal cells.
Direction of translocation of organic food or solutes, is
Upward
Downward
Radial
All of these
The active transport of minerals into root cells is primarily driven by:
Transpiration pull
Root pressure
Proton pumps generating an electrochemical gradient
Capillary action in xylem vessels
The process of mineral ions moving from one part of the plant to another is primarily driven by:
Diffusion and osmosis
Active transport and transpiration pull
Gravity and capillary action
Passive transport and root pressure
Direction of translocation of organic food or solutes, is
Upward
Downward
Radial
All of these
Which element is LEAST likely to be remobilized within the plant?
Nitrogen
Phosphorus
Potassium
Calcium
The deficiency of which mineral element is most likely to affect protein synthesis in plants?
Nitrogen
Magnesium
Phosphorus
Potassium
Researchers observed that inhibiting phloem unloading in a developing fruit resulted in a decrease in sucrose transport to that fruit. However, the transport of certain amino acids to the fruit was unaffected. Which explanation is MOST likely?
Amino acids are transported through the xylem, not the phloem.
Amino acid transport is solely driven by diffusion, unaffected by phloem unloading mechanisms.
Amino acids and sucrose share the same transporters, but amino acids have a higher affinity.
Amino acids are unloaded via a different mechanism than sucrose, potentially utilizing specific transporters independent of sucrose unloading.
Which of the following statements is INCORRECT regarding the translocation of mineral ions in plants?
Mineral ions are transported through the xylem.
Transpiration pull plays a major role in mineral ion translocation.
Mineral ions are transported along with water.
Mineral ions are transported through the phloem.
The process by which mineral ions are transported from the soil to the xylem is primarily:
Diffusion
Osmosis
Active transport
Passive transport
