BIOD 101 Exam 1 portage learning

Matter can exist in which of the following states? Select all that apply. Gaseous Correct! Solid Correct! Catatonic Liquid Correct! Basic Ques 4 / 4 pts tion 2 4/3/22, 9:13 PM Module 1 Exam - Requires Respondus LockDown Browser + Webcam: Essential Biology I with Lab-2021- Bowman Your Answer: Fill-in-the-Blank: The foundational building blocks of proteins are the organic compounds ______, which are held together by ______ bonds. Amino acids peptide Answer: amino acids; peptide (See section 1.2 in module) Ques 4 / 4 pts tion 3 Your Answer: Fill-in-the-blank: A _______ is the substance being dissolved into another substance, while the _____ is the substance into which another substance is being dissolved. solute solvent Answer: solute; solvent (See section 1.4 in module) Ques 4 / 4 pts tion 4 Your Answer: Why are lipids insoluble in water? 4/3/22, 9:13 PM Module 1 Exam - Requires Respondus LockDown Browser + Webcam: Essential Biology I with Lab-2021- Bowman Because they are mostly made of non-polar hydrocarbon chains and nonpolar molecules are hydrophobic Answer: Lipids are insoluble in water because they are made mostly of non-polar hydrocarbon chains. As water is polar, it will only dissolve other polar or ionically bonded substances. Lipids are non-polar, and this is why they are insoluble in water but can be dissolved with nonpolar solvents such as alcohol (See section 1.2 in module). Ques 2 / 4 pts tion 5 Your Answer: What are ions? An ion is a charged atom because the number of electron does not equal the number of protons in the atom Answer: Ions are atoms (or molecules) with a net electrical charge that can be negative or positive based on the gain or loss of electrons, respectively (See section 1.1 in module).