Mycorrhizae aid in mineral uptake primarily by increasing the:
Rate of photosynthesis
Rate of transpiration
Surface area for absorption
Concentration of minerals in the soil
Related Questions
Certain plant species can thrive in soils with high concentrations of heavy metals like nickel. These plants often exhibit modified transport proteins. How might these modified proteins contribute to heavy metal tolerance?
By increasing the influx of nickel into the cytoplasm
By facilitating the efflux of essential nutrients to compensate for nickel toxicity
By converting nickel into less toxic forms
By sequestering nickel into vacuoles, reducing its cytoplasmic concentration
Plant obtain carbon and most of their oxygen from
Soil
Water
from the atmosphere
Symbiotic organisation
What is the most efficient region of water absorption in roots?
Root cap
Growing point
Zone of elongation
Zone of differentiation
The initial step in the uptake of mineral ions by root cells involves:
Active transport into the symplast
Passive absorption into the apoplast
Translocation through the phloem
Transport into the xylem
Which mineral ion is involved in the opening and closing of stomata?
Calcium
Magnesium
Potassium
Iron
Plant obtain carbon and most of their oxygen from
Soil
Water
from the atmosphere
Symbiotic organisation
Which of the following is a micronutrient required for nitrogen fixation in legumes?
Magnesium
Calcium
Molybdenum
Potassium
Which of the following processes requires energy to transport ions from a region of lower concentration to a region of higher concentration across a membrane?
Simple diffusion
Facilitated diffusion
Osmosis
Active transport
Which of the following is essential for the active uptake of mineral ions?
Water
Sunlight
ATP
Carbon dioxide
Which of the following is NOT a factor affecting the uptake of mineral ions by plants?
Soil pH
Concentration of mineral ions in the soil
Presence of chlorophyll
Root hair density
