The primary structure for gas exchange in leaves is:
Cuticle
Epidermis
Stomata
Vascular bundles
Related Questions
The primary structure for gas exchange in leaves is:
Cuticle
Epidermis
Stomata
Vascular bundles
How do plants obtain the oxygen required for respiration at night when photosynthesis is not occurring?
They store oxygen produced during the day
They switch to anaerobic respiration
Through lenticels and diffusion from air spaces within the plant
They do not respire at night
Which process do plants primarily use to obtain energy?
Photosynthesis
Respiration
Decomposition
Chemosynthesis
Do plants respire at night?
Yes
No
Only during the day
Only when they are not photosynthesizing
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
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.
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 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.
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
