When writing an organic functional group, scientists often write an "R" as part of the structure. What does the R indicate? {Ans: Rest of the molecule}The following functional group is an example of _________. Ch3COCH2CH3 {Ans: Ketone}According to the module, the study of carbon compounds is referred to as _____. {Ans: Organic Chemistry}What would be the approximate size of a human cell? 12 μm 1 nm 15 nm 0.2 inch 15 cm {Ans: 12 μm}A collection of two or more macromolecules uniting is called a _______. {Ans: Supramolecular Complex}Which of the following would most likely have a cell wall? Monkey cells Snake cells Red algae cells Human red blood cells All of the above {Ans: Red algae cells}