What gas is released by plants during respiration?
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
Related Questions
Seeds respire in
Presence of
Presence of
absence of
both 1 and 3
Which part of the plant cell is primarily involved in respiration?
Chloroplast
Cell wall
Vacuole
Mitochondria
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
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.
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
Through which tiny pores on leaves do plants exchange gases for respiration?
Xylem
Phloem
Stomata
Root hairs
Seeds respire in
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.
The respiratory quotient (RQ) of a plant is measured to be 1. Which substrate is MOST likely being primarily metabolized?
Fats
Proteins
Organic acids
Carbohydrates
The primary structure for gas exchange in leaves is:
Cuticle
Epidermis
Stomata
Vascular bundles
