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Exam 1
| Question | Answer |
|---|---|
| Characteristic of a compound | Compounds always contain at least two different elements |
| Characteristic of Molecule | Molecules are chemical structures that contain more than one atom bonded by shared electrons |
| The starting substance in a chemical reaction is called | reactants |
| Covalant bond is | A bond that shares one or more valance electrons of atoms |
| In solutions of polar molecules, partial positive charges of one polar molecule will be attracted to partial negative charge on a neighboring polar molecule. This results in ________ bonds. | Hydrogen Bonds |
| The atomic mass of an atom describes the | describes the total weight of both protons and neutrons in the nucleus |
| Assume that K+, H+, Na+, Br-, and Cl- are all available for bonding. Which combination is NOT a possible ionic interaction? | KNa, because the rest were all opposing charges |
| When an anion and a cation are electrically attracted to each other, ________ is formed. | Ionic Bond |
| Decomposition reactions result in | smaller products than reactants |
| Atoms with filled outer shells form | both cations and anions |
| Which of the following elements is found in all organic molecules? Carbon, Oxygen, Iron, Copper, Nitrogen | Carbon |
| The group of organic compounds containing mostly carbon and hydrogen with small amounts of oxygen is defined as a(n) | Lipid |
| Guanine has the ability to form complementary base pairing with | Cytosine |
| Name the bases and their pairs: | DNA : G -> C A -> T RNA: G -> C A -> U |
| The individual monomers of a nucleic acid are | Nucleotides |
| Functionally, carbohydrates are most important as ________. | sources of energy |
| The monomer of carbohydrates is the | monosacharide |
| Special clotting proteins that restrict bleeding following an injury to the cardiovascular system are an example of which protein function? | defense |
| The hydrolysis of ATP yields the molecule ________. | adenosine diphosphate |
| The plasma membrane regulates | the exchange of substances with the environment |
| Which of the following is an example of membranous organelles that digests molecules? | lysosomes |
| The DNA triplet is the same sequence as the ________, except that U replaces T. | anticodon |
| Cilia are found | in cells that are required to move fluids or secretions along the cell surface. |
| Which of the following terms is used to define the structure that separates the contents of a human cell from its surrounding medium? | plasma membrane |
| Approximately 95 percent of a human cell's ATP is produced by the | mitochondria |
| Protein production is a function of the | Golgi Apparatis |
| An increase in cell numbers occurs through a form of cellular reproduction, which is known as ________. | cell division |
| Substances like glucose are often large enough to need transport through | channels |
| ________ processes move substances across a membrane regardless of concentration gradients. | Active transport |
| Crenation occurs when a blood cell is placed in a(n) | hypertonic solution |
| A process that requires cellular energy to move a substance against its concentration gradient is called | Active Transport |
| All of the following membrane transport mechanisms are passive processes, except | vesicular transport |
| Immersion of red blood cells into a(n) ________ solution results in lysis of the cell. | hypotonic solution |
| In which type of solution would will result in no net movement of water? | isotonic |
| The largest vertebrae are called the | lumbar |
| The bone that makes up the lower jaw is the | mandible |
| The most inferior portion of the sternum is called the | xiphoid process |
| The type of bone known for having thin parallel surfaces is | flat |
| A hinge joint is found at the | ankel, elbow, and knee |
| All of the following are structural classifications of synovial joints, except hinge rolling saddle pivot gliding | rolling |
| Which of these is one of the four major types of synarthrotic joints? | suture, like that of the skull |
| Movement in the sagital plane that decreases the angle between articulating bones is which movement? | flexion |
| Which of the following joints is an example of a ball-and-socket joint? | shoulder and hip |
| Nodding your head "yes" is an example of | flexion and extension |
| A suture is an example of a(n) | synarthrosis |
| A joint that permits no movement and is described as an interposition of cartilage plates is called a | synchrondrosis |
Created by:
iessnorris