AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

AP Biology Chapter 4 Flashcards

Terms : Hide Images
7288582468Hydroxyl Group-is polar due to electronegative oxygen. -forms hydrogen bonds with water, helping dissolve compounds such as sugars. -compound name: alcohol (specific name usually ends in -ol)0
7288582469Carbonyl Group-sugars with ketone groups are called ketoses; those with aldehydes are called aldoses. -compound name: ketone (carbonyl group is within a carbon skeleton) or aldehyde (carbonyl group is at the end of a carbon skeleton)1
7288582470Carboxyl Group-acts as an acid (can donate H+) because the covalent bond between oxygen and hydrogen is so polar. -compound name: carboxylic acid, or organic acid2
7288582471Amino Group-acts as a base; can pick up an H+ from the surrounding solution (water, in living organisms) -compound name: amine3
7288582472Sulfhydryl Group-two--SH groups can react, forming a "cross-link" that helps stabilize protein structure. -hair protein cross-links maintain the straightness or curliness of hair; in hair salons, permanent treatments break cross-links, then re-form them while the hair is in the desired shape. -compound name: thiol4
7288582473Phosphate Group-contributes negative charge (1 - when positioned inside a chain of phosphates; 2 - when at the end) -when attached, confers on a molecule the ability to react with water, releasing energy. -compound name: organic phosphate5
7288582474Methyl Group-affects the expression of genes when on DNA or on proteins bound to DNA. -affects the shape and function of male and female sex hormones. -compound name: methylated compound6
7288582475Hydrocarbons-molecules with H and C -not in most living things -a component of macromolecules (such as lipids) -nonpolar -release large amounts of energy when involved in reactions7
7288582476Isomers-compounds with the same molecular formula but different structures and proteins8
7288582477Types of Isomers-structural -cis-trans -enantiomers9
7288582478Structural Isomers-isomers that have different covalent arrangements of their atoms... aka same structure different arrangement10
7288582479Cis-Trans Isomers-isomers that have the same covalent bonds but differ in spatial arrangements... aka same formula, different positioning around a double bond11
7288582480Enantiomers-same formula, mirror image positioning around a central carbon -biological systems tend to use only one of any two of this form -all cells use D-sugars, and L-amino acids12
7288582481Adenosine Triphosphate (ATP)-the potential to react with water, a reaction that releases energy to be used by the cell13
7288582482Functional Groups-the components of organic molecules that are most commonly involved in chemical reactions14

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!