If a plant's respiration rate significantly exceeds its photosynthetic rate for a prolonged period, what is the MOST likely consequence?
Increased growth and biomass
Enhanced fruit and seed production
Accumulation of starch in storage organs
Depletion of stored carbohydrates and eventual plant death
Related Questions
Plants does not need specialised respiratory organ because
Each plant part takes care of its own gas exchange needs
Plants do not need great demands for gas exchange
Both (a) and (b)
None of the above
Which process do plants primarily use to obtain energy?
Photosynthesis
Respiration
Decomposition
Chemosynthesis
Which part of the plant cell is primarily involved in respiration?
Chloroplast
Cell wall
Vacuole
Mitochondria
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
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 process is NOT directly involved in the gaseous exchange required for respiration in plants?
Diffusion
Stomatal opening and closing
Transpiration
Lenticular transpiration
The primary structure for gas exchange in leaves is:
Cuticle
Epidermis
Stomata
Vascular bundles
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.
What gas is released by plants during respiration?
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
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
