#Question id: 399
#Unit 1. Molecules and their Interaction Relevant to Biology
Calculate the pH of a 1 L solution containing 0.100 M formic acid and 0.100 M sodium formate before and after the addition of 1.00 mL of 5.00 M NaOH. How much would the pH change if the NaOH were added to 1.00 L of pure water? (pKa for formic acid is 3.75)
#Question id: 366
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-10 M?
#Question id: 11113
#Unit 7. System Physiology – Animal
Exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by:
#Question id: 23795
#Unit 7. System Physiology – Animal
|
Cells |
Responses |
|
1.Rods, cones
and horizontal cells |
p.
hyperpolarizing potential |
|
2.Bipolar
cells |
q.
depolarizing potential |
|
3.Amacrine
cells |
r. Either
hyperpolarizing or depolarizing potential |
#Question id: 10377
#Unit 6. System Physiology – Plant
Nod factors are recognized by the Nod factor receptor (NFR) in legumes, Upon binding to Nod factors, the NFR heterodimer initiates two main separate processes mediated by SYMRK such as;
a) A signaling pathway that facilitates the infection process itself
b) Activation of the symbiosis receptor-like kinase (SYMRK)
c) Activating an extracellular domain that includes a leucine rich repeat (LRR) region and an intracellular protein kinase domain
d) The activation of a set of genes that regulate the formation of root nodules
Which of the following are the two main separate processes of NFR heterodimer?