#Question id: 27025
#Unit 10. Ecological Principles
#Question id: 11196
#Unit 7. System Physiology – Animal
Pyrethroid insecticides prevent the voltage-gated sodium channels of insects from inactivating. Neurons that were exposed to pyrethroids would ________.
#Question id: 10222
#Unit 6. System Physiology – Plant
Energy partitioning between two photosystem protects them from quick dessipation or quick inactivation this energy partitioning take place by a protein kinase that can phosphorylate a specific threonine residue on the surface of LHCII, what is the role of LHCII in phosphorylated and non-phosphorylated state?
a.) LHCII in phosphorylated state migrate towards the PSI in the unstacked region and delivers energy to the PSI
b.) LHCII in nonphosphorylated state moves back to the grana and delivers energy to the PSII
c.) LHCII in phosphorylated state migrate towards the PSII in the stacked region and delivers energy to the PSI
d.) LHCII in nonphosphorylated state moves towards the stroma lamellae unstacked region and delivers energy to the PSII
Which of the following combination is CORRECT?
#Question id: 2877
#Unit 2. Cellular Organization
What is the superhelical density of a closed-circular DNA with a length of 4,200 bp and a linking number (Lk) of 374? What is the superhelical density of the same DNA when Lk = 412? Are these molecules negatively or positively supercoiled?
A. The molecule is getting negatively supercoiled.
B. The molecule is getting positively supercoiled.
C. The superhelical density is positive.
D. The superhelical density is negative.
Which of the combinations of the above statements are correct?
#Question id: 3879
#Unit 3. Fundamental Processes
Which of the following is not usually essential for the catalytic activity of ribozymes?