Which mineral is a constituent of the ring structure of chlorophyll?
Iron
Magnesium
Manganese
Zinc
Related Questions
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.
Which mineral is a constituent of the ring structure of chlorophyll?
Iron
Magnesium
Manganese
Zinc
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
Which element is LEAST likely to be remobilized within the plant?
Nitrogen
Phosphorus
Potassium
Calcium
Which of the following is a micro-nutrient required by plants?
Calcium
Magnesium
Manganese
Potassium
A plant exposed to a fungal toxin exhibits significantly reduced translocation of potassium ions () despite normal transpiration rates. The toxin MOST likely affects which process?
Stomatal opening and closing
Water potential gradient in the xylem
Activity of membrane transport proteins involved in uptake into xylem
Root pressure generation
Which element is essential for the synthesis of chlorophyll?
Calcium
Potassium
Magnesium
Iron
Which of the following is NOT a characteristic of the phloem tissue involved in translocation?
Bidirectional transport
Living cells
Active process
Unidirectional flow in the whole phloem
A researcher is studying phloem transport in a plant using radioactive . After introducing the radioisotope to a mature leaf, where would the LEAST radioactivity be detected after a short period?
Apical meristem
Young developing leaves
Roots
Mature leaf cells lacking plasmodesmatal connections to the phloem
The deficiency of which mineral element is most likely to affect protein synthesis in plants?
Nitrogen
Magnesium
Phosphorus
Potassium
