In submerged aquatic plants, how does gas exchange primarily occur?
Through specialized air sacs
Through stomata on the submerged leaves
Direct diffusion across the epidermal cells
Through root systems from the surrounding water
Related Questions
Which of the following statements BEST describes the relationship between photosynthesis and respiration in plants at night?
Photosynthesis and respiration both cease, maintaining a neutral balance of gases.
Photosynthesis continues at a reduced rate, while respiration increases to compensate.
Photosynthesis ceases, and respiration also ceases to conserve energy.
Photosynthesis ceases, and respiration continues, consuming stored organic molecules and releasing CO2.
Which specific adaptation allows some plants to minimize water loss while still facilitating gas exchange for respiration?
Increased leaf surface area
Absence of stomata
Continuous, high rates of transpiration
Stomatal opening primarily at night in CAM plants
Which part of the plant cell is primarily involved in respiration?
Chloroplast
Cell wall
Vacuole
Mitochondria
Through which tiny pores on leaves do plants exchange gases for respiration?
Xylem
Phloem
Stomata
Root hairs
Which process is NOT directly involved in the gaseous exchange required for respiration in plants?
Diffusion
Stomatal opening and closing
Transpiration
Lenticular transpiration
The compensation point in plants is reached when...
Photosynthesis ceases entirely, and only respiration occurs.
The rate of photosynthesis equals the rate of respiration, resulting in no net gas exchange.
Respiration ceases entirely, and only photosynthesis occurs.
The plant switches from C3 to CAM photosynthesis.
Which of the following statements is INCORRECT regarding respiration in plants?
Plants respire only at night
Plants take in oxygen and release carbon dioxide during respiration
Plants respire through stomata and lenticels
Respiration in plants requires sunlight
Seeds respire in
Oxygen
Nitrogen
Carbon Dioxide
Hydrogen
What gas is released by plants during respiration?
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
A researcher observes that a plant placed in a sealed chamber shows a net decrease in CO2 levels during the day but a net increase at night. What can be inferred about the metabolic processes occurring?
The plant is only respiring, both day and night.
The plant is only photosynthesizing, both day and night.
Photosynthesis exceeds respiration during the day, while respiration exceeds photosynthesis at night.
Respiration exceeds photosynthesis during the day, while photosynthesis exceeds respiration at night.
