True or False: Oxidation is the gain of electrons
A. true
B. false
B
You might also like to view...
The movement of air along parabronchi is most similar to the movement of _____
A) air in the lungs of other amniotes B) food/waste in a gastrovascular cavity C) a mouse passing through the digestive system of a snake D) the frog tongue during feeding E) air in lungs of terrestrial amphibians
Mitochondria contain their own DNA and replicate on their own. Why is it that they don't suffer the same consequences as our cells in terms of limited division?
A. Because they have high telomerase activity. B. Shortening of the DNA is only a problem with nuclear DNA; shortening of mitochondrial DNA isn't catastrophic. C. Mitochondrial DNA is circular, so it doesn't shorten when it replicates. D. Since mitochondrial DNA only contains a few genes, it can last a lot longer. E. Because they have high telomerase activity and their DNA is circular and so doesn't shorten in replication.
Which of the following is NOT TRUE regarding the evolutionary trends from ape-like ancestors to modern humans?
A. The evolution of larger brain size facilitated the evolution of bipedal posture. B. The evolution of bi-pedal posture would have facilitated long-distance travel since walking on two legs is more energetically efficient than four legs. C. The evolution of bi-pedal posture would facilitate tool use by freeing up the hands. D. Many primates are partially bi-pedal as indicated by knuckle-walking.
Which of the following is a feature of plant cell division that distinguishes it from animal cell division?
A) formation of a cell plate B) formation of a cleavage furrow C) lack of cytokinesis D) production of four (rather than two) new cells per mitotic division