A primary risk factor for cardiovascular disease is elevated blood lipids, especially LDL cholesterol. The level of total cholesterol and HDL cholesterol relative to LDL cholesterol in the blood can be useful in determining the health of the arteries and the risk of developing heart disease. The optimal level of blood lipids includes a lower total cholesterol and LDL cholesterol to reduce the amount of lipids that infiltrate the arterial wall creating plaque buildup. A higher HDL cholesterol may help protect against cholesterol buildup in the arterial wall. Required:
What blood lipids typically analyzed in a blood lipid profile are considered optimal to reduce the risk of heart disease?

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

What was the land like over 500 million years ago? what was under the sea?