Explain why saturated fats tend to be solids at room temperature, and cis-unsaturated fats tend to be liquids at room temperature.

1-Partial hydrogenation of (healthy) cis unsaturated fats produces trans fatty acids. Most of the trans fats produced by the hydrogentation process are classified as saturated fats even though they are still technically _______________?
2-Explain why saturated fats tend to be solids at room temperature, and cis-unsaturated fats tend to be liquids at room temperature. Think about the general 3D shape of these molecules.
3-There are several allotropes (different physical forms) of carbon in the professor’s suitcase: graphite, diamond, fullerenes, and nanotubes. The 2010 Nobel Prize for Physics was awarded for the discovery of another allotrope of carbon, which is a single sheet of graphite. What is its name?
4-Can you describe a time when collaboration worked well for you? Where there ever any disagreements that led to a false assumption (like cells spontaneously crystalizing into existence)?
5-What are the properties of water that makes life possible?

Describe the common pattern of alternating extinctions and radiations

In our online lecture we include a quote by E. O. Wilson, “The one process now going on that will take millions of years to correct is the loss of genetic and species diversity by the destruction of natural habitats. This is the folly our descendants are least likely to forgive us.”
Throughout Earth’s history, we have had long periods of innovation and radiation of new species which have been interrupted periodically by five major extinction events that eliminated large percentages of the life on Earth. The last of these appears to have involved a collision with a large asteroid resulting in the loss of the dinosaurs at the end of the Cretaceous. Each of these events has been followed by a new period of radiation of new species and innovation.
As Wilson states, we are now in the midst of a sixth major extinction event that has been brought on by the actions of humans.
Describe the common pattern of alternating extinctions and radiations. Consider Wilson’s statement. What evidence can you find to support or refute that statement? Do you agree with Wilson? Explain why you do or don’t agree and present the evidence supporting your opinion.

Why is it more sensible for phosphofructokinase, rather than hexokinase, to be an important control step

1)Why is it more sensible for phosphofructokinase, rather than hexokinase, to be an important control step?
2)What is the energy source that drives the condensation of oxaloacetate and and acetyl CoA to produce citrate?
3)What are the mechanisms that a cell uses to protect against the production of oxygen radicals?
4)Describe how the Citric Acid Cycle is a central metabolic pathway in cells that is used for energy metabolism and functions as an anaplerotic pathway.

discuss how osmosis works

Discuss Osmosis (e.g.,describe the process, describe sub-groups of osmosis,
discuss how osmosis works, discuss the category (s) of transport it belongs to, discuss what it transports, etc.,)
– 1 or 2 pages
– Proper heading, name, date, course
– Double spaced