Must Know High School Biology

Kellie Ploeger Cox

Chapter 1 Chemical Bonds and Reactions - all with Video Answers

Educators

Chapter Questions

Problem 1

Molecules of water have an uneven distribution of electrons, resulting in one end of the molecule having a slightly negative charge. The slightly negative end of one water molecule will adhere to the slightly positive end of a second water molecule. What type of chemical bond is occurring between these two water molecules?

Alexander Burbelo

Numerade Educator

02:25

Problem 2

Cellular respiration is the biochemical pathway cells use to break up a molecule of glucose in order to convert the energy into the chemical form, ATP. This releases heat in the process, which provides body heat. Which law(s) of thermodynamics applies to this example?

Dennis Howard

Numerade Educator

00:10

Problem 3

Choose the right term from each of the follow pairs: A reaction that breaks bonds is called a(n) anabolic/catabolic reaction because energy is needed/released.

Sam Limsuwannarot

Numerade Educator

00:19

Problem 4

You run an experiment with an enzyme that catalyzes the reaction of turning A (reactant) into B (the product). Your friend plays a joke on you by adding a non-competitive inhibitor to the reaction, slowing the reaction down significantly.
a. Where on the enzyme does the inhibitor bind?
b. Can the reaction be sped up again by adding more of the enzyme's substrate (A)?

Sam Limsuwannarot

Numerade Educator

00:33

Problem 5

Choose the correct answer: A(n) ionic/covalent/intermolecular bond involves sharing two electrons between two atoms.

Aditya Sood

Numerade Educator

06:38

Problem 6

Referring to the two reaction diagrams below, indicate which of the two reactions: Requires an input of energy? Creates products that contain more energy than the reactants? Has a negative delta $G$ ?