#Question id: 15847
#Unit 4. Cell Communication and Cell Signaling
#Question id: 11204
#Unit 7. System Physiology – Animal
Why do Na+ ions enter the cell when voltage-gated Na+ channels are opened in neurons?
#Question id: 11902
#Unit 6. System Physiology – Plant
A chemiosmotic model
has been proposed to explain
Polar transport , following steps are involve in the transport of auxin
polarly;
a) IAA enters the cell either passively in the undissociated
form (IAAH) or by secondary active cotransport in the anionic form (IAA–)
b) The cell wall is maintained at an acidic pH by the
activity of the plasma membrane H+- ATPase
c) In the cytosol, which has acidic pH, the IAAH form
predominates
d) The anions exit the cell via auxin anion efflux carriers
that are concentrated at the basal ends of each cell in the longitudinal
pathway
Which of the following is the correct statements about the polarly transporting of auxin?
#Question id: 10929
#Unit 7. System Physiology – Animal
Which of the following would describe the condition in a patient with aplastic anemia?
Which of the following is correct?
#Question id: 12256
#Unit 10. Ecological Principles
Ant species X preys upon ant species Y. A researcher has the following set of observations regarding the behaviour of species X where aggression signifies a predatory response.
Which of the following statement(s) are correct regarding the behaviour of Species X?
(i) A glass bead is sufficient to elicit the predatory response.
(ii) Both chemical and non-chemical cues are involved in the predatory response.
(iii) Chemical cues are necessary to elicit the predatory response.
(iv) Chemical cues are sufficient to elicit the predatory response