#Question id: 398
#Unit 1. Molecules and their Interaction Relevant to Biology
One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). (See figure.)
If the pH of blood drops, one would expect ________.
#Question id: 13137
#Unit 10. Ecological Principles
#Question id: 10454
#Unit 6. System Physiology – Plant
Arabidopsis mutants impaired in the chloroplast avoidance response with the help of PHOT1/PHOT2 led to the identification of a novel F-actin-binding protein known as
#Question id: 10354
#Unit 6. System Physiology – Plant
One of the enzyme that are involve in the ammonium assimilation is Asparagine synthetase (AS), some statements given below about AS such as,
a) This enzyme that catalyzes this reaction, is found in the cytosol of leaves and roots and in nitrogen-fixing nodules
b) High levels of light and carbohydrate inhibit the expression of genes coding for AS and the activity of the enzyme
c) Conditions of ample energy stimulate AS, thus they favor nitrogen assimilation into glutamine and glutamate
d) Energy-limited conditions inhibit GS and GOGAT, stimulate AS, and thus favor nitrogen assimilation into asparagine, a compound that is rich in nitrogen and sufficiently stable for long-distance transport or long term storage
Which of the following statements about AS is correct?
#Question id: 11114
#Unit 7. System Physiology – Animal
The amount of air exchanged during normal quiet breathing is about: