Why are saturated fats solid at room temperature while unsaturated fats are liquid at room temperature?
What will be an ideal response?
Saturated fats are triglycerides with three saturated fatty acid tails. They tend to be solid at room temperature because their floppy saturated tails can pack tightly. Unsaturated fats consist mainly of triglycerides with one or more unsaturated fatty acid tails. Each double bond in a fatty acid tail makes a rigid kink. Kinky tails do not pack tightly, so unsaturated fats are typically liquid at room temperature.
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During chemotaxis, attractants increase the rate of autophosphorylation whereas repellants decrease this rate
Indicate whether the statement is true or false.
Males and females often differ in their reproductive strategies due to the fact that males can increase the number of
offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
Which factor would be least useful for making predictions regarding how urbanization and climate
change will affect the carbon cycle?
a. the architecture of the canopy of trees overhead b. leaf positioning c. leaf losses d. timing of natural events e. extent of agricultural practices
How many nucleotides can be added by eukaryotic polymerases per second?
A. 400 B. 40 C. 500 D. 50 E. 1,000