NEET Botany Respiration in Plants MCQs

Under anaerobic conditions, the regeneration of NAD+ for glycolysis is primarily achieved through:

In the context of aerobic respiration, uncoupling agents like 2,4-dinitrophenol (DNP) disrupt ATP synthesis by:

A succulent xerophyte exhibiting Crassulacean Acid Metabolism (CAM) is kept in a sealed, transparent container with a CO2 sensor. The container is exposed to a 12-hour light/12-hour dark cycle. At which point during the cycle would the CO2 concentration within the container be LOWEST, assuming no other influencing factors?

A germinating fatty seed has an R.Q. of 0.7. If the volume of CO2 released is 140 mL, what volume of O2 is consumed?

Which of the following conditions would MOST LIKELY result in an R.Q. value greater than 1 in a mammal?

An organism is respiring using a substrate with the general formula $C_nH_{2n}O_n$. Under aerobic conditions, what would its theoretical R.Q. be?

A patient presents with an abnormally high R.Q. Which of the following metabolic derangements is LEAST likely to be the cause?

During seed germination, the R.Q. is initially high but gradually declines. This shift is primarily attributed to the change in:

During alcoholic fermentation by yeast, a crucial intermediate is formed before the production of ethanol. This intermediate, which is also associated with muscle fatigue in animals, is:

Certain bacteria can ferment sugars to produce propionic acid, $CH_3CH_2COOH$. If the fermentation starts with glucose, what is the theoretical maximum yield of propionic acid (in moles) per mole of glucose, assuming all carbon from glucose goes into propionic acid?